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New additions of basidiomycetous fungi in Indian mycoflora.

2012; Guizhou Academy of Agricultural Sciences; Volume: 4; Issue: 1 Linguagem: Inglês

10.5943/mycosphere/4/1/4

2077-7019

Babita Kumari, NS Atri,

Fungal Biology and Applications

Introduction The genus Leucoagaricus Locq. ex Singer (family Agaricaceae) is characterized by small to medium sized basidiocarps with lepiotoid to pluteoid habitat; radially fibrillose to floccose, scaly and rarely granulose pileus having very short striate margin which may be collariate lamellae; central stipe with membranous, annulus, metachromatic basidiospores, absence of clamp connections, presence of cheilocystidia and absence of pleurocystidia. It differs from closely related Leucocoprinus in having very shortly pectinate pileus margin instead of long pectinate margin. Initially it was treated as a subgenus of Leucocoprinus by Locquin (1943), but elevated from subgenus level to generic level by Singer (1948). Over 90 species are known (Kirk et al. 2008), although only 8 species are recorded from India (Leucoagaricus crystallifer Vellinga, L. fuligineus Pegler, L. holosericeus (Gillet) M.M. Moser, L. excoriatus (Schaeff.) Singer, L. melanotrichus var. melanotrichus (Malencon & Bertault) Trimbach, L. rubrotinctus (Peck.) Singer, L. rhodocephalus (Berk.) Pegler and L. sublittoralis (Kuhner ex Hora) Singer (Bilgrami et al., 1979; Sarbhoy et al., 1992; Jamalludin et al., 2001 and Natarajan et al., 2005). During surveys to various localities of North India a new species, Leucoagaricus albidus sp. nov., and two new varieties, L. barssii var. bulbobasilarus var. nov. and L. tener var. brevisporus var. nov. were found and are described in this paper.