MYCOTAXON Volume 96, pp. 181–191 April–June 2006 The genus Chlorophyllum (Basidiomycetes) in China Z. W. GE1, 2 & Zhu L. YANG1, *
[email protected] [email protected] 1 Laboratory of Biodiversity and Biogeography, Kunming Institute of Botany Chinese Academy of Sciences, Heilongtan, Kunming 650204, Yunnan, P. R. China 2 Graduate School of the Chinese Academy of Sciences Beijing 100039, P. R. China Abstract—Species of the genus Chlorophyllum (Agaricaceae) in China are described and illustrated with line drawings. Among them, C. sphaerosporum is new to science, and C. hortense is new to China. A key to the Chlorophyllum species in China is also provided. Key words—Agaricales, new taxon, new record, taxonomy, distribution Introduction The genus Chlorophyllum Massee (Agaricaceae, Agaricales, Basidiomycetes) in its amended sense is characterized by a hymenidermal pileus covering, a smooth stipe, and basidiospores without a germ pore or with a germ pore but just caused by a depression in the episporium. A hyaline covering on the germ pore is absent. The basidiospores may be white, green, brownish or brown in deposit, and the habit varies from agaricoid to secotioid (Vellinga 2001, 2002, 2003a, b; Vellinga & de Kok 2002; Vellinga et al. 2003). During our survey of the lepiotoid fungi in China, several species were identified, and one new species of the genus was encountered and thus described below. Differences between similar species are provided and discussed. Material and methods All material examined collected in China, and deposited in three Herbaria. Herbarium codes used follow Holmgren et al. (1990) with one exception: HKAS = Herbarium of Cryptogams, Kunming Institute of Botany, Chinese Academy of Sciences, which is not listed in the index or relevant publications.