DACRYOMYCETACEAE 



159 



m. Pileus cerebroid or convolute-foliose Tremella 6:780, K 115; 41 

 n. Pileus funnelforni; hymenium more 

 or less ridged 

 y. Spores dark; pileus of Tremella 

 B. Hymenium in a more or less complete stalked 

 peridium 



Gyrocephalus 6:795, K 117 

 Phaeotremella 23:580, K 117 



Hyaloria 14:252. K 119 



Family 69. DACRYOMYCETACEAE 



6:796; K 119 



Characters of the order, but the basidia not septate, cylindric-clavate, with 

 2 blunt terminal sterigmata; pileus typically gelatinous, golden-yellow. 



A. Pileus crustose, waxy; spores 2-celled 



B. Pileus pulvinate, gelatinous; spores x-celled 



C. Pileus erect, cupulate or stalked 



1, Pileus only partly covered with hymenium 



a. Pileus cupulate, fleshy; spores x-celled, very 



large 



b. Pileus stalked 



(1) Pileus capitate, firm-fleshy; spores 2-celled 



(2) Pileus spatulate or cornucopioid, gelati- 



nous; spores x-celled 



2. Pileus covered with hymenium on all sides 



a. Pileus clavate or capitate, simple, gelatinous; 



hymenium often ridged 



b. Pileus subulate or ramose, Clavaria-like, car- 



tilaginous 



Ceracea 6:805, K 120 

 Dacryomyces 6:796, K 120; 41 



Femsjonia 6:779, K 122 

 Ditiola 6:813, K 120 

 Guepinia 6:805, K 120; 41 



Dacryomitra 6:811, K 122; 41 

 Calocera 6:732, K 123; 42 



Order 18. AGARICALES 



Pileus rarely gelatinous, sometimes waxy, membranous or woody, but chiefly 

 leathery or fleshy, crustose or resupinate to dimidiate or cap-like, rarely cupulate 

 or byssoid, typically stalked in the fleshy forms; hymenium superior, amphigenous 

 or regularly inferior in dimidiate and pileate species, ranging from smooth, warted 

 or convolute to teeth, tubes, or lamellae; basidia simple, more or less clavate, typi- 

 cally 4-sterigmate, often intermixed with cystidia; spores mostly simple, hyaline or 

 colored. 



This order has evidently been derived from the Tremellales, and it passes gradu- 

 ally into the Lycoperdales, from the most highly specialized family, Agaricaceae. 

 The pileus and hymenium are often most variable, with the consequence that family 

 and generic criteria are obscured. 



Key to Families 



A. Pileus byssoid or lacking 



B. Pileus present, firm, crustose to cap-like 



1. Hymenium smooth, or merely warted or 

 wrinkled 



a. Pileus resupinate, dimidiate, cupulate or fun- 



nel-form, typically leathery or membra- 

 nous 



b. Pileus typically clavate, filiform or coralloid, 



and fleshy 



Hypochnaceae p. 160 



Thclephoraceae p. 160 

 Clavariaceae p. 162 



