摘要
在研究了我国西南地区(滇、黔、川、藏)小奥德蘑属Oudemansiella的标本后,作者认为Pegler et Young(1986)所提出的本属的分类系统较为合理。本文报道该属10种4变种,其中3新种、1新变种和1新组合。新分类群是云南小奥德蘑Oudemansiella yunnanensisZ.L.Yang et Zang、粘小奥德蘑假根变种Oudemansiella mucida(Schrad:Fr.)v.Hoehn.vat.pseudorhiza z.L.Yang et Zang、膜被小奥德蘑Oudemansiella velata z.L.Yang etZang、杏仁形小奥德蘑Oudemansiella amygdaliformis Z.L.Yang et Zang;新组合是长根小奥德蘑双孢变种Oudemansiella radicata(Relh.:Fr.)Singer vat.bispora(Redhead,Ginns et Shoemaker)Z.L.Yang et Zang。新分类群有拉丁文及汉文描述,并有附图。全部标本存中国科学院昆明植物研究所隐花植物标本馆(HKAS)。我国西南小奥德蘑属的种类相当丰富,约占世界已知种的1/3,除产于南美的刺孢组Sect.Dactylosporina外,其余各组在本区均有代表。区系组成主要以北温带成分为主,也有个别泛热带成分,而云南小奥德蘑、膜被小奥德蘑等可能是在喜马拉雅隆起、横断山脉形成和云贵高原抬升过程中逐步演化出来的特殊而年青的种类。
Having examined a number of specimens of the genus Oudemansiella Speg. s.1., collected from southwest China (Yunnan, Guizhou, Sichuan, and Xizang), the authors consider that Pegler & Young's infrageneric treatments of the genus are more reasonable and acceptable than others'. 10 species and 4 varieties, belonging to 2 subgenera and 4 sections of their system, are reported forthe region, including 3 new species, one new variety and one new combination. The new taxa are OudemansielIa yunnanensis Z. L. Yang et Zang, Oudemansiella mucida (Schrad.: Fr.) v. Hoehn. var. pseudorhiza Z. L. Yang et Zang, Oudemansiella velata Z. L. Yang et Zang, and Oudemansiella amygdalitormis Z. L. Yang et Zang. Oudemansiella radicata (Relh.: Fr.) Singer var. bispora (Redhead, Ginns et Shoemaker) Z. L. Yang et Zang is the new combination. The new taxa are described in Latin as well as in Chinese, and illustrated with line drawings. All specimens cited are deposited in HKAS (Cryptogamic Herbarium, Kunming Institute of Botany, Academia Sinica). According to the present knowledge of the genus, about one-third of the total species in the genus, and 4 sections out of the five, excluding sect. Dactylosporina, are distributed in the region, indicating that Southwest China is rich in species and sections of Oudemansiella. Floristically, boreal elements are predominant, while tropical ones are represented by only one or two species. O. yunnanensis and O. velata may be characteristic, younger taxa, gradually evoluted during the uplift of the Himalayas, the formation of the Hengduan Mts., and the rise of the Yunnan-Guizhou Plateau.
出处
《真菌学报》
CSCD
北大核心
1993年第1期16-27,共12页
基金
中国科学院生物分类区系特别支持费资助项目
关键词
真菌
小奥德蘑属
分类
中国西南
Oudemansiella
Classification
Southwest China
