Type studies on agarics described by N. Patouillard (and his co-authors) from Vietnam

Thirty-six types of agarics described by N. Patouillard, either alone or wi th other mycologists, from Vietnam were critically restudied. Eight new com binations are made. They are Mycena bambusa (Pat. & Dem.) Z. L. Yang; Melan oleuca demangei (Pat.) Z. L. Yang; Conocybe fracticeps (Pat. & Dem.) Z. L. Yang; Leucocoprinus bonianus (Pat.) Z. L. Yang; Stropharia albosulfurea (Pa t.) Z. L. Yang; Marasmiellus patouillardi (Sacc. & Syd.) Z. L. Yang; Oudema nsiella neuroderma (Pat.) Z. L. Yang; Psilocybe griseobadia (Pat.) Z. L. Ya ng. Hiatula tonkinensis Pat., Lepiota tonkinensis Pat., and Leucocoprinus d olichaulus var. cryptocyclus Pat. are synonyms of Termitomyces microcarpus (Berk. & Pr.) Helm, Leucoagaricus rubrotinctus (Peck) Singer, and Macrolepi ota dolichaula (Berk. & Br) Pegler & Rayner respectively. Lentinus mollipes Pat. and Pleurotus radicosus Pat. are conspecific with Lentinus giganteus Perk. Androsaceus sessilis Pat. and Lepiota anceps Pat. are probably synony ms of Marasmius tenuissimus (Jungh.) Singer and Micropsalliota erythrospila (Berk. & Pr) Pegler respectively. A new name, Agaricus iocephalusiopsis Z. L. Yang, is proposed for Agaricus iocephalus Pat. Important characters obs erved from the types are illustrated in eighty-three line drawings.