Accessibility / Report Error

The genus Brittonodoxa (Sematophyllaceae) in Brazil

Abstract

This study presents an update on the occurrence of the genus Brittonodoxa in Brazil with diagnosis, taxonomic comments, illustrations, and geographical distribution data. We recognized three species from Brazil and the geographical distribution of two of them is being expanded: B. cataractae is being reported here for the first time the states of ES, RJ, and RS, and B. lithophila in the Amazon Forest and Pampa biome, occurring in the states of AM, ES, MA, MS, MT, PA, PR, RJ, RS, and TO.

Key words:
Bryophyta; Atlantic Forest; endemic species; Hypnales; mosses

Resumo

Neste trabalho apresentamos uma atualizaçâo da ocorrência do gênero Brittonodoxa no Brasil, com diagnose, comentârios taxonômicos, ilustraçâo e distribuiçâo no Brasil. São reconhecidas três espécies para o Brasil, destas duas tiveram seu registro de ocorrência ampliado: B. cataractae teve seu registre de ocorrência ampliado para os estados do ES, RJ e RS; e B. lithophila teve seu registro ampliado para os biomas Floresta Amazônica e Pampa, e para os estados do AM, ES, MA, MS, MT, PA, PR, RS, RJ e TO.

Palavras-chave:
Bryophyta; Floresta Atlântica; espécies endêmicas; Hypnales; musgos

Introduction

Brittonodoxa W.R. Buck, P.E.A.S. Câmara & Carv.-Silva is a genus of the family Sematophyllaceae, described by Carvalho-Silva et al. (2017)Carvalho-Silva M, Stech M, Soares-Silva LH, Buck WR, Wickett NJ, Liu Y & Câmara PEAS (2017) A molecular phylogeny of the Sematophyllaceae s.l. (Hypnales) based on plastid, mitochondrial and nuclear markers, and its taxonomic implications. Taxon 66: 811-831.. According to these authors, the name of the genus as given in homage to Elizabeth G. K. Britton, one of the first female bryologists in the world. The genus comprises species previously placed in Sematophyllum Mitt. or Rhaphidostegium (Schimp.) De Not. Molecular phylogenetic analyses resolved the taxonomic conflict and showed Brittonodoxa to be a monophyletic genus within the Sematophyllaceae crown clade (Carvalho-Silva et al. 2017Carvalho-Silva M, Stech M, Soares-Silva LH, Buck WR, Wickett NJ, Liu Y & Câmara PEAS (2017) A molecular phylogeny of the Sematophyllaceae s.l. (Hypnales) based on plastid, mitochondrial and nuclear markers, and its taxonomic implications. Taxon 66: 811-831.).

According to Carvalho-Silva et al. (2017)Carvalho-Silva M, Stech M, Soares-Silva LH, Buck WR, Wickett NJ, Liu Y & Câmara PEAS (2017) A molecular phylogeny of the Sematophyllaceae s.l. (Hypnales) based on plastid, mitochondrial and nuclear markers, and its taxonomic implications. Taxon 66: 811-831.. most species of the Sematophyllaceae crown clade. including all species of the clades (e.g., Donnellia Austin, Jirivanaea U.B.Deshmukh & Rathor, and Pterogoniopsis Müll.Hal), can be recognized by the presence of alar cells of the Brotherelloid type and are restricted to the New World, except for the clades Brittonodoxa and "Rhaphydorrhynchium". Brittonodoxa is a tropical genus composed of six species distributed in Mexico, Central and South America, and West Indies, with some species in Africa (Carvalho-Silva et al. 2017Carvalho-Silva M, Stech M, Soares-Silva LH, Buck WR, Wickett NJ, Liu Y & Câmara PEAS (2017) A molecular phylogeny of the Sematophyllaceae s.l. (Hypnales) based on plastid, mitochondrial and nuclear markers, and its taxonomic implications. Taxon 66: 811-831.).

Although, Brittonodoxa has low to moderate bootstrap support value, its species can be distinct using morphological characteristics (Carvalho-Silva et al. 2017Carvalho-Silva M, Stech M, Soares-Silva LH, Buck WR, Wickett NJ, Liu Y & Câmara PEAS (2017) A molecular phylogeny of the Sematophyllaceae s.l. (Hypnales) based on plastid, mitochondrial and nuclear markers, and its taxonomic implications. Taxon 66: 811-831.). They are easily recognized by their ovate to ovate-lanceolate and concave leaves and, acute to short-acuminate, rhomboid to hexagonal cells (Evangelista-dos-Santos & Valente 2022aEvangelista-dos-Santos M & Valente EB (2022a) Biodiversity of Sematophyllaceae s. str. in northeastern Brazil. CheckList 18: 1181-1189.) and can be differentiated from the other genera of Sematophyllaceae (e.g., Donnellia and Meiothecium Mitt.) based on the morphological characteristics of the peristome. The morphology of the exostome and endostome is considered a good feature to distinguish the genera of this family.

Recent studies on species of Sematophyllaceae in Brazil have revealed novelties in the genus Brittonodoxa. Hence, in this study, we present updated taxonomic, morphological, and ecological descriptions, illustrations, and geographical distribution statuses of Brittonodoxa species from Brazil.

Material and Methods

The Flora e Funga do Brasil (Câmara & Carvalho-Silva 2020Câmara PEAS & Carvalho-Silva M (2020) Sematophyllaceae in Flora do Brasil 2020 (continuously updated). Jardim Botânico do Rio de Janeiro. Available at <http://floradobrasil.jbrj.gov.br/reflora/floradobrasil/FB603992>. Access on 28 February 2022.
http://floradobrasil.jbrj.gov.br/reflora...
) was used, as a baseline in this study. Type materials and herbarium specimens were obtained from ALCB, ASE, BM, CEPLAC, HABIT, HBRA, HNTO (duplicates), HUCS, HUEFS, HUNEB, HUESPI, JE, NY, MBM, MG, PACA, SP, UB, UFP, UPCB, VIES (duplicates), and VIC (duplicates).

The species are listed in alphabetical order. The delimitations of the genus and the species were based on photos of the types and relevant bibliography (Buck 1998Buck WR (1998) Pleurocarpous mosses of the West Indies. Memoirs of the New York Botanical Garden 1: 1-401.; Carvalho-Silva et al. 2017Carvalho-Silva M, Stech M, Soares-Silva LH, Buck WR, Wickett NJ, Liu Y & Câmara PEAS (2017) A molecular phylogeny of the Sematophyllaceae s.l. (Hypnales) based on plastid, mitochondrial and nuclear markers, and its taxonomic implications. Taxon 66: 811-831.; Evangelista-dos-Santos et al. 2021Evangelista-dos-Santos M, Valente EB, Câmara PEAS, Souza AM & Cerqueira AHG (2021) Família Sematophyllaceae sensu stricto Broth. no estado da Bahia. Pesquisas, Botânica 75: 251-273.; Evangelista-dos-Santos & Valente 2022aEvangelista-dos-Santos M & Valente EB (2022a) Biodiversity of Sematophyllaceae s. str. in northeastern Brazil. CheckList 18: 1181-1189.). The morphological terminology followed Luizi-Ponzo et al. (2006)Luizi-Ponzo AP, Bastos CJP, Costa DP, Pôrto KC, Câmara PEAS, Lisboa RCL & Bôas-Bastos SBV (2006) Glossarium polyglottum bryologiae: 1-113. and Calzadilla & Churchill (2014)Calzadilla E & Churchill SP (2014) Glossario ilustrado para musgos Neotropicales. Missouri Botanical Garden: 1-132.. The substrates classification follows Richards (1984), Fudali (2001)Fudali E (2001) The ecological structure of the bryoflora of Wroclaw’s Parks and cemeteries in relation to their localization and origin. Acta Societatis Botanicorum Poloniae 70: 229-235., and Molinaro & Costa (2001)Molinaro LC & Costa DP (2001) Brióftas do arboreto do Jardim Botânico do Rio de Janeiro. Rodriguesia 52: 107-124..

Descriptions, recognized synonyms, illustrations, comments, distribution in Brazil, substrate types, selected material, and maps are provided for each species. New occurrences are indicated by an asterisk (*). Distribution maps were prepared using ArcGis v.10.2, based on the geographic coordinates of the collections. All shapefiles and geographical information were obtained from the IBGE (Instituto Brasileiro de Geografia e Estatística 2022)IBGE - Instituto Brasileiro de Geografa e estatística (2022) Geociências. Available at <https://www.ibge.gov.br/geociencias/downloads-geociencias.html>. Access on 24 December 2022.
https://www.ibge.gov.br/geociencias/down...
database.

Results and Discussion

Brittonodoxa is represented in Brazil by three species: Brittonodoxa cataractae (W.R. Buck) W.R. Buck, P.E.A.S. Câmara & Carv.-Silva, Brittonodoxa lithophila (Hornsch.) W.R. Buck, P.E.A.S. Câmara & Carv.-Silva, and Brittonodoxa subpinnata (Brid.) W.R. Buck, P.E.A.S. Câmara & Carv.-Silva. Brittonodoxa cataractae and B. lithophila are endemic to Brazil. With the present work, the geographical distribution of species that were little known until now is being expanded. Brittonodoxa cataractae is being expanded in the Atlantic Forest biome (Fig. 1), and B. lithophila is reported for the first time from the Amazon Forest and Pampa biome (Fig. 1). Brittonodoxa subpinnata is widely distributed, in mesic to humid forests (Buck 1998Buck WR (1998) Pleurocarpous mosses of the West Indies. Memoirs of the New York Botanical Garden 1: 1-401.) and in urban environments (Evangelista-dos-Santos et al. 2021Evangelista-dos-Santos M, Valente EB, Câmara PEAS, Souza AM & Cerqueira AHG (2021) Família Sematophyllaceae sensu stricto Broth. no estado da Bahia. Pesquisas, Botânica 75: 251-273.), in Brazil, has a wide distribution (Fig. 1).

Figure 1
Map of geographical distribution of Brittonodoxa cataractae, Brittonodoxa lithophila, and Brittonodoxa subpinnata in Brazilian states and Phytogeographic biome. Source IBGE (2022, adapted)IBGE - Instituto Brasileiro de Geografa e estatística (2022) Geociências. Available at <https://www.ibge.gov.br/geociencias/downloads-geociencias.html>. Access on 24 December 2022.
https://www.ibge.gov.br/geociencias/down...
.

Taxonomic treatment

Key to Brittonodoxa species of Brazil

  • 1. Leaves orbicular to ovate; apex mucronate or obtuse; leaf cells rhomboidal 10–15 µm long ......... ............. 2. Brittonodoxa lithophila

  • 1’. Leaves lanceolate to oblong-lanceolate; apex acute to acuminate; leaf cells rhomboidal to short-rhomboidal ................. 2

    • 2. Setae 4–5 mm; endostome with a high basal membrane; segments papillose; cilia single ..... ........................... 1. Brittonodoxa cataractae

    • 2’. Setae 1–1.7 mm; endostome with a high basal membrane; segments smooth; cilia single or rudimentary ............... 3. Brittonodoxa subpinnata

1. Brittonodoxa cataractae (W.R. Buck) W.R. Buck, P.E.A.S. Câmara & Carv.-Silva, Taxon 66(4): 823. 2017 ≡ Sematophyllum cataractae W.R. Buck, Brittonia 35: 328. 1983Buck WR (1983) New species and new combinations in the Sematophyllum subpinnatum complex (Sematophyllaceae). Brittonia 35: 327-330.. Type: Brazil. Santa Catarina. Serra Geral, Jan. 1890, E. Ule s.n (Holotype NY!, Isotype NY!). Fig. 2

Figure 2
a-h. Brittonodoxa cataractae – a. gametophyte; b. leaves; c. alar cells; d. basal cells; e. apical cells; f. exothecial cells; g. exostome; h. endostome. (from holotype NY1178850).

Plants medium-sized, golden-green; stems ca. 2-3 cm long, irregularly branched; leaves oblong to lanceolate, 1-1.5 mm long, acute, concave, margins entire; cells short-rhomboidal at apex, 9-12 µm long, linear-flexuous at base, 20–30 µm long; alar cells smaller, hyaline, oblong, 17–22 µm long; supra-alar cells 1–2 rows, quadrate to sub-rectangular. Setae elongate, smooth, 4–5 mm long; capsule oblong; exothecial cells quadrate to sub rectangular, collenchymatous; operculum long-rostrate; exostome triangular, bordered, with zig-zag median line, cross-striolate below, papillose above, trabeculate at back; endostome with a high basal membrane, segments papillose, perforate, cilia single.

Selected material examined: ESPÍRITO SANTO: Domingos Martins, Parque Estadual da Pedra Azul, 2.X.2016, T.S. Dantas et al. 789 (UB). RIO DE JANEIRO: Parque Nacional de Itatiaia, 1.XI.2006, P.E.A.S. Câmara 17 (UB). RIO GRANDE DO SUL: Jardim Botânico, Caxias do Sul, 5.IV.2007, J. Bordin & A. Brunetto 623 (HUCS). SANTA CATARINA: Morrão do Antão, Ilha de Santa Catarina, J. Bordin (HUCS 4951). SÃO PAULO: Campos do Jordão, Parque Estadual de Campos do Jordão, 22.VI.1993, O. Yano 19540 (HUCS).

Brittonodoxa cataractae can be recognized by the shape of the leaves, the poorly developed alar cells and 1–2 rows of supra-alar cells, the bordered exostome, perforate endostome segments and single cilia. The records of the occurrence this species, which was known to occur only around the type locality, are being expanded with the present study. Studies like the present on can contribute to a better understanding of the distribution of this species. According to Buck (1983)Buck WR (1983) New species and new combinations in the Sematophyllum subpinnatum complex (Sematophyllaceae). Brittonia 35: 327-330., B. cataractae is very similar to Sematophyllum cubense Buck, but, it can be distinguished the more ovate leaves with entire margins, the smaller alar cells, and endostome cilia.

Brittonodoxa cataractae is endemic of Brazil, distributed in the Atlantic Forest and Pampa biome. Here, we confirm the occurrence in the states of

Espírito Santo*, Rio de Janeiro*, Rio Grande do Sul*, and Santa Catarina. The species can be found in Ombrophilous forest, growing on decaying roots, trees, soil, or rocks at 250-1,339 m alt.

2. Brittonodoxa lithophila (Hornsch.) W.R. Buck, P.E.A.S. Câmara & Carv.-Silva, Taxon 66(4): 823. 2017 ≡ Hypnum lithophilum Hornsch. in Martius, Fl. bras. 1(2): 84. 1840 ≡ Sematophyllum lithophilum (Hornsch.) Ǻngström in Öfvers. Kongl. Vetensk.-Akad. Förh. 33(4): 42. 1876 ≡ Sematophyllum loxense var. lithophilum (Hornsch.) Lindb., Moss. Dillen. Hist. Musc.: 20. 1883, nom. illeg. ≡ Rhaphidostegium lithophilum (Hornsch.) Broth. in Bih. Kongl. Svenska Vetensk.- Akad. Handl. 21, Afd. 3(3): 50. 1895 ≡ Rhaphidostegium loxense var. lithophilum (Hornsch.) Paris, Index Bryol.: 1099. 1898Paris JEGN (1898) Index Bryologicus: 1-1099., nom. illeg. Type: Brazil, Serra dos Órgãos, H.C. Beyrich s.n. (Lectotype BM), designated by Buck (1998)Buck WR (1998) Pleurocarpous mosses of the West Indies. Memoirs of the New York Botanical Garden 1: 1-401..

= Hypnum loxense var. rivulare Müll. Hal., Syn. Musc. Frond. 2: 332. 1851. ≡ Rhaphidostegium loxense var. rivulare (Müll. Hal.) A. Jaeger, Ber. Thätigk. St, Gallischen Naturwiss. Ges. 1876-77: 390. 1878Jaeger A & Sauerbeck F (1878) Adumbratio flore muscorum totius orbis terrarum. Bericht uber die Thatigkeit der St. Gallischen Naturwissenschaftlichen Gessellschaft 76-77: 211-454.. Type: Brasilia [Brazil] in lapidibus rivolurum pr. Novo-Friburgum, Beirich s.n. (Syntype H-BR) syn. fide Buck (1998)Buck WR (1998) Pleurocarpous mosses of the West Indies. Memoirs of the New York Botanical Garden 1: 1-401..

= Acroporium catharinenseSehnem, Pesquisas, sér Bot. 32: 109-110. pl. 4. 1978Sehnem A (1978) Musgos sul-brasileiros V. Pesquisas, Botânica 32: 1-170.. Type: Brazil, Santa Catarina, Morro do Antão, Sehnem 3204. (Holotype PACA!) syn. fide Câmara et al. (2015). Fig. 3

Figure 3
a-h. Brittonodoxa lithophila – a. gametophyte; b. leaves; c. alar cells; d. basal cells; e. apical cells; f. exothecial cells; g. exostome; h. endostome. (from paratype of heterotypic synonym PACA73161).

Plants well developed, golden, green to golden green; stems ca. 3-4 cm long, irregularly branched; leaves orbicular to ovate, 1-1.5 mm long, mucronate or obtuse, concave, margins entire; cells rhomboidal at apex 10-15 µm, linear to linear flexuous at base 15-30 µm; alar cells smaller, hyaline or yellow, oblong, 30-40 µm; supra-alar cells 2-4 rows, quadrate to sub-rectangular, inflated. Setae elongate, smooth, 7-10 mm long; capsule cylindric; exothecial cells quadrate to sub rectangular, collenchymatous; operculum long-rostrate; exostome triangular, bordered, zig-zag median line, cross-striolate below, papillose above, trabeculate at back; endostome with a high basal membrane, segments papillose, perforate, cilia single.

Selected material examined: AMAZONAS: Manaus, 10.VI.1979, O. Yano 1415 (SP). BAHIA: Nova Esperança, Estação Ecológica Wenceslau Guimarães, Trilha Água Vermelha, 4.XII.2017, C. Bastos 6147 (ALCB). DISTRITO FEDERAL: Centro Olímpico da UnB, 25.XI.2000, T.I. Luna 2046 (UB). ESPÍRITO

SANTO: Domingos Martins, Parque Estadual da Pedra Azul, 2.X.2016, T.S. Dantas et al. 779 (UB). MARANHÃO: município de Zé Doca, Aldeia dos Guajajaras, 30.VIII.2017, R.R. Oliveira 106 (SP). MATO GROSSO: município Juscimeira, 15.VII.1981, D.M. Vital 9892 (SP). MATO GROSSO DO SUL: município de Três Lagoas, Reserva Agroflorestal, 12.IX.1992, O. Yano & M.P. Marcelli 17066 (SP). MINAS GERAIS: Alto do Caparaó, Parque Nacional do Caparaó, Vale Verde, 10.VII.2009, J. Bordin 1563 (HUCS). PARÁ: Belém, Museu Emílio Goeldi, 4.I.1928, P. Occhioni (RB 174819). PARANÁ: Morretes, Véu de Noiva, 18.VIII.1987, R. Kummorow & J. Cordeiro 2944 (HUCS). RIO GRANDE DO SUL: Caxias do Sul, Parque dos Macaquinhos, 15.X.2005, J. Bordin 153 (HUCS). SÃO PAULO: Paranapiacaba, Reserva do Instituto de Botânica, 12.III.2009, R. Wasum 4459 (HUCS). TOCANTINS: Araguaína, Chácara Dom Orione, 18.I.2017, R. Santos-Silva 400 (SP).

Brittonodoxa lithophila can be recognized by the orbicular to ovate shape of the leaves with mucronate or obtuse apices. Buck (1998)Buck WR (1998) Pleurocarpous mosses of the West Indies. Memoirs of the New York Botanical Garden 1: 1-401. described the leaves of this species as broadly ovate and obtuse-mucronate with compact alar cells. Some leaves may have an acute apex, but the other essential characteristics do not change (Evangelista-dos-Santos et al. 2021Evangelista-dos-Santos M, Valente EB, Câmara PEAS, Souza AM & Cerqueira AHG (2021) Família Sematophyllaceae sensu stricto Broth. no estado da Bahia. Pesquisas, Botânica 75: 251-273.). This species occurs preferentially close to rivers or on submerged rocks.

Buck (1998)Buck WR (1998) Pleurocarpous mosses of the West Indies. Memoirs of the New York Botanical Garden 1: 1-401. included Sematophyllum cochleatum (Broth.) Broth. as a heterotypic synonym of B. lithophila, but after analyzing the Isotypes deposited in New York Botanical Garden (NY01179097 and NY01179098) we do not consider them as a synonym. Sematophyllum cochleatum presents numerous, quadratic to short quadratic alar cells, in 4–5 rows. This species is more related to Rhaphidostegium amnigenum Broth., also considered a synonym of B. lithophila by Buck (1998)Buck WR (1998) Pleurocarpous mosses of the West Indies. Memoirs of the New York Botanical Garden 1: 1-401., however recent phylogenetic analysis has transferred R. amnigenum to the genus Trichosteleum Mitt. (Carvalho-Silva et al. 2017Carvalho-Silva M, Stech M, Soares-Silva LH, Buck WR, Wickett NJ, Liu Y & Câmara PEAS (2017) A molecular phylogeny of the Sematophyllaceae s.l. (Hypnales) based on plastid, mitochondrial and nuclear markers, and its taxonomic implications. Taxon 66: 811-831.).

Brittonodoxa lithophila is endemic of Brazil, distributed in the Amazon, Atlantic Forest, Cerrado and Pampa. Here, we confirm the occurrence in the states of Amazonas*, Bahia, Distrito Federal, Espírito Santo*, Maranhão*, Minas Gerais, Mato Grosso do Sul*, Mato Grosso*, Pará*, Paraná*, Rio de Janeiro*, Rio Grande do Sul, Santa Catarina, São Paulo and Tocantins*. The species can be found in rainforests, montane forests, and igarapés (side channels of rivers), growing on decaying roots, trees, soil, or rocks at 213–1,385 m alt.

3. Brittonodoxa subpinnata (Brid.) W.R. Buck, P.E.A.S. Câmara & Carv.-Silva, Taxon 66(4): 824. 2017 ≡ Leskea subpinnata Brid, Muscol. Recent. Suppl. 2: 54. 1812 ≡ Hypnum subpinnatum (Brid.) Arn. in Mém. Soc. Linn. Paris 5: 302. 1827 ≡ Rhaphidostegium subpinnatum (Brid.) E. Britton in Bryologist 21: 28. 1918Britton EG (1918) Mosses from Florida collected by Severin Rapp. The Bryologist 21: 1-28. ≡ Sematophyllum subpinnatum (Brid.) E. Britton in Bryologist 21: 28. 1918Britton EG (1918) Mosses from Florida collected by Severin Rapp. The Bryologist 21: 1-28.. - type: In Hispaniola ad arbores habitat, P.A. Poiteau s.n. (Holotype B, probably lost; Isotype: NY!).

= Hypnum loxense Hook., Syn. Pl. 1: 62. 1822 ≡ Sematophyllum loxense (Hook) Mitt., J. Linn. Soc, Bot. 12: 479. 1869. ≡ Rhaphidostegium loxense (Hook) A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1876-77: 390. 1878Jaeger A & Sauerbeck F (1878) Adumbratio flore muscorum totius orbis terrarum. Bericht uber die Thatigkeit der St. Gallischen Naturwissenschaftlichen Gessellschaft 76-77: 211-454.. (Holotype BM! [photo]). syn. fide Buck (1998)Buck WR (1998) Pleurocarpous mosses of the West Indies. Memoirs of the New York Botanical Garden 1: 1-401.

= Aptychus aurantius Müll.Hal., Hedwigia 37: 257. 1898. ≡ Rhaphidostegium aurantium (Müll. Hal.) Paris, Index Bryol. Suppl. 295. 1900Paris JEGN (1900) Index Bryologicus: 1-295.. ≡ Sematophyllum aurantium (Müll.Hal.) Broth., Nat. Pflanzenfam., ed. 2, 11: 432. 1925. (Isotype NY! [photo]). syn. fide Buck (1998)Buck WR (1998) Pleurocarpous mosses of the West Indies. Memoirs of the New York Botanical Garden 1: 1-401.. Fig. 4

Figure 4
a-h. Brittonodoxa subpinnata – a. gametophyte; b. leaves; c. alar cells; d. basal cells; e. apical cells; f. exothecial cells; g. exostome; h. endostome. (HUEFS 153881).

Plants well developed, golden, green to golden green; stems ca. 2–4(-6) cm long, irregularly branched; leaves lanceolate to oblong-lanceolate, 0.8-1.1 mm long, acute to acuminate, concave, margins entire; cells rhomboidal at apex 0.9-11 µm, linear to linear flexuous at base 15-20 µm; alar cells smaller, yellow, oblong, 12-15 µm; supraalar cells 4-5 rows, quadrate to sub-rectangular, inflated. Setae elongate, smooth 1-1.7 mm long; capsule cylindric; exothecial cells rectangular to quadrate, collenchymatous; operculum long-rostrate; exostome triangular, bordered, with zigzag median line, cross-striolate below, papillose above, trabeculate at back; endostome with a high basal membrane, segments smooth perforate, cilia single or rudimentary.

Selected material examined: ACRE: Rio Branco, 1.VI.1987, D.M. Vital 15038 (PACA). ALAGOAS: Estação Ecológica Murici, Mata da Bananeira, 2.XII.2004, K.C. Pôrto (UFP 48924). AMAZONAS: Presidente Figueredo, Rio Urubú, 30.VI.2014, CE. Zartman 8789 (UB). BAHIA: São Francisco do Conde, Fazenda Engenho madruga, C.J.P Bastos (HUNEB 4886). CEARÁ: Ubajara, Sítio São Luís, 18.VII.2017, M.E.B. Sousa 36 (HUESPI). DISTRITO FEDERAL: Chapada Imperial, Cachoeira Três Marias, 7.VII.2016, P.E.A.S. Câmara 3815 (UB). ESPÍRITO SANTO: Parque Estadual Pedra Azul, 29.X.2009, L.T. Penha 679 (HUEFS). GOIÁS: Alto Paraíso de Goiás, Parque Nacional da Chapada dos Veadeiros, 5.V2016, M.G. Facco 477 (UB). MARANHÃO: Área de Proteção Ambiental Buriti do Meio, 16.V2014, Conceição & Bonfim 65 (HABIT). MINAS GERAIS: Santana do Riacho, Parque Nacional Serra do Cipó, 11.VI.2011, P.E.A.S. Câmara 1871 (UB). MATO GROSO: Várzea Grande, Loteamento Santa Cecília, 14.VIII.2009, T.E.C. Meneguzzo 242 (UB). PARÁ: Santarém, Rio Cupari afluente do Rio Tapajós, 6.XII.2010, R. Gama 814 (UB). PARAÍBA: Areia, Reserva Ecológica da Mata do Pau-Ferro, 11.IX.2009, M.P.P. Silva 350 (UFP). PERNAMBUCO: Cabo de Santo Agostinho, Reserva Ecológica Garjaú, Mata do Cuxio, 7.II.2003, L.D.P. Alvarenga (UFP 51002). PIAUÍ: Granja, Serra da Ubatuba, 28.IV2012, E.B. Sousa 2582 (HUESPI). PARANÁ: Curitiba, São José dos Pinhais, Reserva Biológica Cambuí, 30.VI.1979, A.A.R. Meijer 79 (MBM). RIO DE JANEIRO: Nova Friburgo, estrada de Olaria para São Lourenço, 29.III.1989, D.P Costa 839 (RB). RORAIMA: Bonfim, 8.VIII.1995, R.L. Santiago 218 (UFP). RIO GRANDE DO SUL: Nova Esperança do Sul, Gruta Nossa Senhora de Fátima, 3.IX.2017, D.V. Valente 1320 (UB). SANTA CATARINA: Imaruí, Lagoa Imaruí, 21.VIII.1992, G. Hatschbach 57900 (MBM). SERGIPE: Itabaiana, Serra da Itabaiana, Parque dos Falcões, F.S. Dantas 288 (ASE). SÃO PAULO: Santo André, Paranapiacaba, 12.III.2009, R. Wasum 4463 (HUCS).

Brittonodoxa subpinnata presents a wide range of morphological variation, especially in the leaf shape, which has led to misidentifications. Because of this, a high number of heterotypic synonyms, approximately 209, were listed in Tropicos (2022TROPICOS (2022) Missouri Botanical Garden. Available at <https://www.tropicos.org>. Access on 25 February 2022.
https://www.tropicos.org...
, <https://tropicos.org/name/>), which need a revision. In the present work, we have included only a few of the names corresponding to those whose types we analyzed, on order to avoid excessive elaboration.

Some materials analyzed in this study were mistakenly identified as B. subpinnata and actually corresponded to species such as Meiothecium boryanum (Müll.Hal.) Mitt., Donnellia commutata (Müll.Hal.) W.R. Buck, and Jirivanaea caespitosa (Hedw.) U.B. Deshmukh & Rathor. The oblong leaves with recurved margins and the peristomal structure are unmistakable features of M. boryanum (Buck 1998Buck WR (1998) Pleurocarpous mosses of the West Indies. Memoirs of the New York Botanical Garden 1: 1-401.; Evangelista-dos-Santos et al. 2021Evangelista-dos-Santos M, Valente EB, Câmara PEAS, Souza AM & Cerqueira AHG (2021) Família Sematophyllaceae sensu stricto Broth. no estado da Bahia. Pesquisas, Botânica 75: 251-273.). This species presents a single peristome, with a hyaline, linear, non-trabeculate, scarcely papillose exostome (Evangelista-dos-Santos & Valente 2022bEvangelista-dos-Santos M & Valente EB (2022b) Novas ocorrências de Meiothecium boryanum (Müll.Hal.) Mitt. (Sematophyllaceae, Bryophyta) no Brasil. Hoehnea 49: e072022.). In D. commuta, in turn, the leaves are lanceolate, the alar cells are scarcely inflated, and the endostome is reduced or absent (Buck 1998Buck WR (1998) Pleurocarpous mosses of the West Indies. Memoirs of the New York Botanical Garden 1: 1-401.; Evangelista-dos-Santos et al. 2021Evangelista-dos-Santos M, Valente EB, Câmara PEAS, Souza AM & Cerqueira AHG (2021) Família Sematophyllaceae sensu stricto Broth. no estado da Bahia. Pesquisas, Botânica 75: 251-273.). The leaves of J. caespitosa are oblong lanceolate and the alar cells are well developed (Evangelista-dos-Santos et al. 2021Evangelista-dos-Santos M, Valente EB, Câmara PEAS, Souza AM & Cerqueira AHG (2021) Família Sematophyllaceae sensu stricto Broth. no estado da Bahia. Pesquisas, Botânica 75: 251-273.).

According to Görts-Van Rijn (1996)Görts-Van Rijn ARA (1996) Flora of the Guianas. Series C: Bryophytes. Musci III. Kew, The Royal Botanic Gardens: 363-489., B. subpinnata grows preferably on exposed habitats, presenting curved branches and broad leaves. In habitats with higher humidity, the branches are erect and the leaves are patent-spreading, usually smaller and more slenderly ovate (Görts-Van Rijn 1996Görts-Van Rijn ARA (1996) Flora of the Guianas. Series C: Bryophytes. Musci III. Kew, The Royal Botanic Gardens: 363-489.).

Brittonodoxa subpinnata is distributed in Brazil in the Atlantic Forest, Amazon Forest, Caatinga, Cerrado, and Pampa. Here, we confirm the occurrence in the states of Acre, Alagoas*, Amazonas, Bahia, Ceará, Distrito Federal, Espírito Santo, Goiás, Maranhão, Minas Gerais, Mato Grosso, Pará, Paraíba, Paraná, Pernambuco, Piauí, Rio de Janeiro, Roraima, Rio Grande do Sul, Santa Catarina, Sergipe, and São Paulo. The species can be found in rainforests, rupestrian fields montane forests, restinga forests (sandy coastal plain vegetation), and igarapés (side channels of rivers), growing on decaying roots, base of trees, soil, rocks, or anthropic substrates at 83–1385 m alt.

Data availability statement

In accordance with Open Science communication practices, the authors inform that all data are available within the manuscript.

Acknowledgements

The authors are grateful to the Herbário da Universidade Estadual de Feira de Santana (HUEFS) and the Programa de Pós-Graduação em Botânica (PPG-Bot), for the support logistic; and to the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) financing code 001 to the scholarship for the first author.

References

  • Ångström J (1876) Prima lineae muscorum cognoscendorum, qui ad Caldas Brasilia sunt collecti. Öfversigt af Kongl. Vetenskaps-Akademiens Förhandlingar 33: 3-55.
  • Bridel SE (1812) Muscologiae Recentiorum Supplementum. 2: 1-257.
  • Britton EG (1918) Mosses from Florida collected by Severin Rapp. The Bryologist 21: 1-28.
  • Brotherus VF (1895) Nouvells constributions à la flore bryologique du Brésil. Bihang till Kongliga Svenska Vetenskaps-Akademiens Handlingar. 3: 1-76.
  • Brotherus VF (1925) Musci (Laubmoose). In: Engler HGA & Prantl K (eds.) Die natürlichen Pfanzendamilien vol 11, pp 542.
  • Buck WR (1983) New species and new combinations in the Sematophyllum subpinnatum complex (Sematophyllaceae). Brittonia 35: 327-330.
  • Buck WR (1998) Pleurocarpous mosses of the West Indies. Memoirs of the New York Botanical Garden 1: 1-401.
  • Calzadilla E & Churchill SP (2014) Glossario ilustrado para musgos Neotropicales. Missouri Botanical Garden: 1-132.
  • Carvalho-Silva M, Stech M, Soares-Silva LH, Buck WR, Wickett NJ, Liu Y & Câmara PEAS (2017) A molecular phylogeny of the Sematophyllaceae s.l. (Hypnales) based on plastid, mitochondrial and nuclear markers, and its taxonomic implications. Taxon 66: 811-831.
  • Câmara PEAS & Carvalho-Silva M (2020) Sematophyllaceae in Flora do Brasil 2020 (continuously updated). Jardim Botânico do Rio de Janeiro. Available at <http://floradobrasil.jbrj.gov.br/reflora/floradobrasil/FB603992>. Access on 28 February 2022.
    » http://floradobrasil.jbrj.gov.br/reflora/floradobrasil/FB603992
  • Evangelista-dos-Santos M, Valente EB, Câmara PEAS, Souza AM & Cerqueira AHG (2021) Família Sematophyllaceae sensu stricto Broth. no estado da Bahia. Pesquisas, Botânica 75: 251-273.
  • Evangelista-dos-Santos M & Valente EB (2022a) Biodiversity of Sematophyllaceae s. str. in northeastern Brazil. CheckList 18: 1181-1189.
  • Evangelista-dos-Santos M & Valente EB (2022b) Novas ocorrências de Meiothecium boryanum (Müll.Hal.) Mitt. (Sematophyllaceae, Bryophyta) no Brasil. Hoehnea 49: e072022.
  • Fudali E (2001) The ecological structure of the bryoflora of Wroclaw’s Parks and cemeteries in relation to their localization and origin. Acta Societatis Botanicorum Poloniae 70: 229-235.
  • Görts-Van Rijn ARA (1996) Flora of the Guianas. Series C: Bryophytes. Musci III. Kew, The Royal Botanic Gardens: 363-489.
  • Hornschuch CF (1840) Musci. In: von Martius CFP (ed.) Flora brasiliensis Vol. 1. Missouri Botanical Garden. Pp. 1-94.
  • IBGE - Instituto Brasileiro de Geografa e estatística (2022) Geociências. Available at <https://www.ibge.gov.br/geociencias/downloads-geociencias.html>. Access on 24 December 2022.
    » https://www.ibge.gov.br/geociencias/downloads-geociencias.html
  • Jaeger A & Sauerbeck F (1878) Adumbratio flore muscorum totius orbis terrarum. Bericht uber die Thatigkeit der St. Gallischen Naturwissenschaftlichen Gessellschaft 76-77: 211-454.
  • Kunt CS (1822) Musci. Synopsis Plantarum: 46-65.
  • Lindberg SO (1883) Kritisk Granskning af Mossorna uti Dillenii Historia Muscorum: 1-59.
  • Luizi-Ponzo AP, Bastos CJP, Costa DP, Pôrto KC, Câmara PEAS, Lisboa RCL & Bôas-Bastos SBV (2006) Glossarium polyglottum bryologiae: 1-113.
  • Mitten W (1869) Musci Austro-Americani. Journal of Linnean Society, Botany 12: 1-656.
  • Molinaro LC & Costa DP (2001) Brióftas do arboreto do Jardim Botânico do Rio de Janeiro. Rodriguesia 52: 107-124.
  • Müller C (1851) Musci. Synopsis Muscorum Frondosorum omnium hucusque Cognitorum. Alb. Foerstner Berlin 2: 161-510.
  • Müller C (1898) Analecta bryographica antillarum. Hedwigia 37: 219-266.
  • Paris JEGN (1898) Index Bryologicus: 1-1099.
  • Paris JEGN (1900) Index Bryologicus: 1-295.
  • Richards PW (1984) The ecology of tropical forest bryophytes. In: Schuster RM (ed.) New manual bryology. Vol. 2. The Hattori Botanical Laboratory, Nichinan. Pp. 1233-1970.
  • Sehnem A (1978) Musgos sul-brasileiros V. Pesquisas, Botânica 32: 1-170.
  • TROPICOS (2022) Missouri Botanical Garden. Available at <https://www.tropicos.org>. Access on 25 February 2022.
    » https://www.tropicos.org

Edited by

Area Editor: Dra. Thalia Morales

Publication Dates

  • Publication in this collection
    30 Oct 2023
  • Date of issue
    2023

History

  • Received
    02 Apr 2022
  • Accepted
    24 July 2023
Instituto de Pesquisas Jardim Botânico do Rio de Janeiro Rua Pacheco Leão, 915 - Jardim Botânico, 22460-030 Rio de Janeiro, RJ, Brasil, Tel.: (55 21)3204-2148, Fax: (55 21) 3204-2071 - Rio de Janeiro - RJ - Brazil
E-mail: rodriguesia@jbrj.gov.br