<i>Duguetia leucotricha</i> (Annonaceae), a new species from the Atlantic Coastal Forest of Brazil

A new species of Annonaceae, Duguetia leucotricha M.L.Bazante & Maas, from lowland to submontane forests of southern Bahia, Brazil, is described. It differs from other species of the genus mainly by the dense greyish white stellate hairs on vegetative and reproductive structures, rather widely-spaced flowers, the large bract in the upper part of the well-developed pedicel, sepals and petals almost equal in length, and the few-carpellate fruits with rounded apex of the areoles. Commentaries concerning its morphological aspects and relationships of affinity, geographic distribution, conservation status and photos are provided, as well as a key to all Atlantic Coastal Forest species of Duguetia.

Keywords:
Annonoideae; Bahia; Duguetieae; Northeast Region; Neotropics; taxonomy

Authorship

Márcio L. Bazante ^** Corresponding author: mlbazante@gmail.com

Universidade Federal de Pernambuco, Programa de Pós-Graduação em Biologia Vegetal, 50670-901, Recife, PE, BrazilUniversidade Federal de PernambucoBrazilRecife, PE, BrazilUniversidade Federal de Pernambuco, Programa de Pós-Graduação em Biologia Vegetal, 50670-901, Recife, PE, Brazil

http://orcid.org/0000-0003-4485-1926

Paul J. M. Maas

Naturalis Biodiversity Center, section Botany, P.O. Box 9517, 2300 RA Leiden, The NetherlandsNaturalis Biodiversity CenterThe NetherlandsLeiden, The NetherlandsNaturalis Biodiversity Center, section Botany, P.O. Box 9517, 2300 RA Leiden, The Netherlands

Maria Regina de V. Barbosa

Universidade Federal da Paraíba, Departamento de Sistemática e Ecologia, 58051-970, João Pessoa, PB, BrazilUniversidade Federal da ParaíbaBrazilJoão Pessoa, PB, BrazilUniversidade Federal da Paraíba, Departamento de Sistemática e Ecologia, 58051-970, João Pessoa, PB, Brazil

http://orcid.org/0000-0001-6166-3922

* Corresponding author: mlbazante@gmail.com

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Figures

Figures (3)

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Figure 1
Details of Duguetia leucotricha structures in sicco. A. Fruiting branch. B-C. Detail of the indument on the lower leaf surface. D. Flower bud, side view. E. Flower at anthesis, side view. F-G. Stamens, side view. H. Carpel, side view. I. Fruit. J. Fertile carpel. K. Seed. (A-C and I-K from D. Piotto et al. 2808 [CEPEC]; D-H from W.W. Thomas et al. 16425 [JPB]).

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Figure 2
Details of Duguetia leucotricha structures in vivo. A. Tree canopy. B. Trunk. C. Leaves, upper side view. D. Leaves, lower side view. E. Inflorescence trunciflorous ca. 14 cm above the ground, note the two elongated rhipidia. F. Inflorescence among leaves, supra-axillary. G. Inflorescence ramiflorous. H. Flower at anthesis, side view. I. Flower at anthesis, top view, showing stamens and carpels. J. Flower at anthesis, back view, showing sepals. K. Inner side of perianth structures, 1: sepal, 2: outer petal, 3: inner petal. L. Fruit, note the persistent sepals. M. Fruit, note the weakly developed basal collar. Photographs by Márcio L. Bazante (A-K from M.L. Bazante et al. 1513 [JPB]; L-M from M.L. Bazante & L. Daneu 1519 [JPB]).

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Figure 3
Duguetia leucotricha, geographic distribution and habitat. A. Distribution map of the species in protected areas in the state of Bahia, Brazil. APA: Área de Proteção Ambiental (Environmental Protection Area); PES: Parque Estadual (State Park); REBIO: Reserva Biológica (Biological Reserve). B. Habitat of the species in the Serra do Conduru State Park, Bahia, Brazil (arrow indicates the collection site). Photograph by Márcio L. Bazante.

Figure 1 Details of Duguetia leucotricha structures in sicco. A. Fruiting branch. B-C. Detail of the indument on the lower leaf surface. D. Flower bud, side view. E. Flower at anthesis, side view. F-G. Stamens, side view. H. Carpel, side view. I. Fruit. J. Fertile carpel. K. Seed. (A-C and I-K from D. Piotto et al. 2808 [CEPEC]; D-H from W.W. Thomas et al. 16425 [JPB]).

Figure 2 Details of Duguetia leucotricha structures in vivo. A. Tree canopy. B. Trunk. C. Leaves, upper side view. D. Leaves, lower side view. E. Inflorescence trunciflorous ca. 14 cm above the ground, note the two elongated rhipidia. F. Inflorescence among leaves, supra-axillary. G. Inflorescence ramiflorous. H. Flower at anthesis, side view. I. Flower at anthesis, top view, showing stamens and carpels. J. Flower at anthesis, back view, showing sepals. K. Inner side of perianth structures, 1: sepal, 2: outer petal, 3: inner petal. L. Fruit, note the persistent sepals. M. Fruit, note the weakly developed basal collar. Photographs by Márcio L. Bazante (A-K from M.L. Bazante et al. 1513 [JPB]; L-M from M.L. Bazante & L. Daneu 1519 [JPB]).

Figure 3 Duguetia leucotricha, geographic distribution and habitat. A. Distribution map of the species in protected areas in the state of Bahia, Brazil. APA: Área de Proteção Ambiental (Environmental Protection Area); PES: Parque Estadual (State Park); REBIO: Reserva Biológica (Biological Reserve). B. Habitat of the species in the Serra do Conduru State Park, Bahia, Brazil (arrow indicates the collection site). Photograph by Márcio L. Bazante.

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Sociedade Botânica do Brasil SCLN 307 - Bloco B - Sala 218 - Ed. Constrol Center Asa Norte CEP: 70746-520 Brasília/DF. - Alta Floresta - MT - Brazil
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<i>Duguetia leucotricha</i> (Annonaceae), a new species from the Atlantic Coastal Forest of Brazil

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[1] * Corresponding author: mlbazante@gmail.com