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Acta Botanica Brasilica

Print version ISSN 0102-3306On-line version ISSN 1677-941X

Acta Bot. Bras. vol.16 no.3 São Paulo July/Sept. 2002

https://doi.org/10.1590/S0102-33062002000300008 

Montagnea haussknechtii Rab. (Podaxales) a rare agaricoid fungus: first record from Brazil1

 

Montagnea haussknechtii Rab. (Podaxales) um raro fungo agaricóide: primeira citação para o Brasil

 

 

Iuri Goulart BaseiaI, III; Adauto Ivo MilanezII

IAluno de Doutorado do Instituto de Biociências/USP
IIInstituto de Botânica, C. Postal 4005, 01061-970, São Paulo, SP, Brasil
IIIDepto. de Micologia - CCB, Universidade Federal de Pernambuco, Cidade Universitária, 50.670-901, Recife, PE

Correspondence

 

 


ABSTRACT

This xerophilic species is recorded for the first time from Brazil, found on sandy soil from cerrado of the State of São Paulo. A description of the macro and microscopic features from mature basidiomata is given. Pictures of the spores under the scanning electron microscope are added.

Key words: Taxonomy, SEM-picture, cerrado, São Paulo state


RESUMO

Esta espécie xerófila é registrada pela primeira vez para o Brasil, encontrada em solo arenoso de cerrado do Estado de São Paulo. São fornecidas descrições das características macro e microscópicas a partir de basidiocarpos maduros e adicionalmente, microscopia eletrônica de varredura dos esporos.

Palavras-chave: Taxonomia, foto-MEV, cerrado, estado de São Paulo


 

 

Introduction

The genus Montagnea was established by E. M. Fries (1836) in honor to the French mycologist C. Montagne, who had initially sent the dried material, which served as the basis for the generic description. This genus is mainly characterized by its agaricoid appearance with the apex of the stipe expanded into a disc from the margin of which hang the radiating, lamelloid, black, naked tramal plates.

According to Hawksworth et al. (1995), Podaxales is an improper order of Gasteromycetes; on the other hand, Dring (1973) includes Podaxaceae belonging to Agaricales. However, various authors like as Liu (1984), Dörfelt & Bumžaa (1986), Chio et al. (1990), Reid & Eicker (1991) and Pardavé (1991), yet consider this group as belonging to the Gasteromycetes. Hence, we note some controversy about the mentioned statements by Dring (1973) and Hawksworth et al. (1995).

Currently, four taxa are recognized for the genus, Montagnea arenaria (DC.) Zeller, M. arenaria var. macrospora Reid & Eicker, M. schuppii Rick and M. haussknechtii Rab. These species are separated mainly on the basidiomata and basidiospores sizes.

There are not enough studies about this genus from South America; few specimens in the herbaria were not even studied. This work highlights some results for a survey of gasteroid fungi from the cerrado areas in the State of São Paulo. The aim here is to get an improved insight on this polyphiletic group, by including a detailed description of micro and macroscopic features from mature basidiomata.

 

Material and methods

Fieldworks have been made in the "Estação Ecológica de Jataí", located in the State of São Paulo. This area is characterized by seasonal but moderately deciduous forest, occurring in the high-altitude (520-851m), also appearing on soils of intermediate fertility. Climatic conditions are of the AW type according to Köppen System.

Fresh and dried material were prepared for examination under light microscope by removing small sections of the hymenium, and soaking them in Melzer's reagent plus 5% KOH (Singer, 1986). Color terms in parenthesis are those of Kornerup & Wanscher (1978). The material is preserved at the Herbario do Estado Maria Eneyda P. K. Fidalgo (SP).

Spores have been examined in a Philips XL 20 scanning electron microscope. The investigated matter has been mounted dusting it over aluminum stubs and covered with a thin layer of gold-palladium in Sputter Coater Bal-Tec SCD-050.

 

Results and discussion

Montagnea haussknechtii Rab., Sitzungsber, naturw. Ges. `Isis' Dresden 8, 1870.

Synonyms: Montagnites elliottii Mass., Grevillea 21, 1, 1892; Montagnites tenuis Pat., Jl. Bot. 8, 219, 1894; Montagnea tenuis (Pat.) Teng. Fungi of China 762, 1964; Montagnites candollei var. minor P. Henn., Hedwigia 40(98), 1901; Montagnites candollei var. coprinoides P. Henn., Hedwigia 40(98), 1901; Montagnites candollei var. somala Bacc., Eumycet. Somalia 191, 1916; Montagnites spegazzini Sacc. & Trott., Syll. Fung. 23, 327, 1925 (Reid & Eicker 1991).

Fig. 1

 

 

Basidiomata agaric-like 6-7 cm. high. Pileus 3-4 cm diam., conic-truncate, depressed in the center, yellowish brown (5F4) to brownish grey (5F2). Stipe woody, yellowish brown (5F4), cylindrical, 7-8 cm. tall., covered with some coarse lacerated scales, longitudinally wrinkled and at the base an inconspicuous fringed papery volva. Lamellae numerous, black to dark grey (3F3), very crowded, radially orientated. Hymenium comprising of 4-spored basidia. Spore powder dark grey (3F3), basidiospores 6-7 x 3-4 mm, elliptic to pyriform, with a slightly thickened wall, and a germ pore, sessile, dark brown.

Material examined: BRAZIL, São Paulo: Município de Luís Antônio, Estação Ecológica de Jataí, 09/V/2000, I. G. Baseia (SP 307517); 23/III/2001, I. G. Baseia (SP 307552).

Habitat: Solitary on sandy soil in open sunlight of cerrado region.

Distribution: Russia (Sorokin, 1884); Egypt (Massee, 1892); Africa (Hennings, 1901); United States of America (Zeller, 1943); Iran (Petrak, 1949); Canary Islands (Eckblad, 1962; 1975); Israel (Dring & Rayss, 1963); Afghanistan (Eckblad, 1970); Cuba (Kreisel, 1971); Spain (Calonge, 1975) Turkey (Watling & Gregory, 1977); China (Liu, 1984).

Discussion: Montagnea Fr. has been made the type genus of the Montagneaceae Sing. (Singer 1976) that comprises two other genera: Panaeolopsis Sing. and Polyplocium Berk. However, Singer (1986) observed that the affinities of his new family Montagneaceae lie with Coprinaceae in the Agaricales. On that occasion, Singer (1986) wrote about Montagnea: "Many authors consider this genus as belonging to the Agaricales, somewhere near Coprinus. There is no doubt in the author's mind but that Montagnea is, indirectly, related with the Coprinaceae. However, if there is such a thing as a Gasteromycete, Montagnea is one of them". There are evidences from rDNA sequences data to support long-held hypothesis for other close relationship among secotioid, false-truffle and agaric forms (Vilgalys et al. 1993). The examples include the shaggy mane mushroom, Coprinus comatus and the gasteroid forms Montagnea and Podaxis.

Montagnea and the genus Gyrophragmium share superficial resemblance, such as: size, color and texture of the gills and the presence of a small volva at the base of the stipe; but they differ mainly by the gills that are lamellate and radiate in Montagnea while in Gyrophragmium the tramal plates are separated and arranged in parallel lines.

From Brazil, there was only one record for this genus: M. schuppii, given by Rick (1928; 1939). M. haussknechtii and M. schuppii differ mainly by the size and color of the pileus that in M. schuppii are bigger and clear. This is the first record of Montagnea haussknechtii from Brazil.

 

Acknowledgments

We thank the financial support of the Coodernação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES), the Instituto de Biociências/USP and Seção de Micologia e Liquenologia/IBt . We also thank the referee's suggestions for improving the paper.

 

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Correspondence to
Iuri Goulart Baseia
E-mail: ibaseia@bol.com.br

Recebido em 14/08/2001
Aceito em 15/01/2002

 

 

1 Parte da Tese de Doutorado do primeiro autor. Bolsista CAPES

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