104 TREMELLACEAE 



1. Pileus waxy or byssoid 



a. Pileus waxy, scarcely gelatinous 



(i) Pileus eiluse Protomerulius ii: 142 



(2) Pileus cupulate or concave Hirneolina 17 : 208 



b. Pileus byssoid Stypella 14:246 



2. Pileus gelatinous 



a. Pileus covered with sterile setae, effuse 



Heterochaete 14: 247 



b. Pileus without sterile setae 



(1) Pileus erect, clavate, columnar or spatulate 



(a) Pileus clavate, simple or branched 



Clavariopsis 16:219 

 (incl. Hyaloria 14: 252) 



(b) Pileus spatulate, large, simple Gyrocephalus 6: 795 

 (2) Pileus effuse, globose, cupulate or pulvinate 



(a) Spores i-celled 



X. Pileus cupulate, radicate Femsjonia 6: 779 



y. Pileus pulvinate or effuse 



(y) Basidia in chains ; hymenium not cerebriform 



Sirobasidiutn 14:248 

 (y) Basidia not in chains ; hymenium cerebriform 



Tremella 6: 780 



(inc. Naematelia 6 : 792) 



(b) Spores 2-4-celled, at least upon germination, reniform 



X. Spores 2-4-celled, sporidioles allantoid ; pileus truncate-cupulate or 



effuse Exidia 6: 772 



y. Spores 2-celled, sporidioles straight; pileus pulvinate, gyrose 



Ulocolla 6: 777 

 II. Spores and conidia present, i. e., heterosporous 



1. Pileus ascending and dendroid fCollodendrum 17:208 



(Tremellodendron) 



2. Pileus effuse to pulvinate 



a. Spores on the disk, conidia on the exciple 



CraterocoUa 6:778 



b. Conidia and spores usually succeeding each other on the same area 

 (i) Pileus cerebriform, pulvinate or effuse 



Tremella 6:780 



(2) Pileus not cerebriform, crust-like 



(a) Spores reniform, conidia ovoid Sebacina 6:540 



(b) Spores ovoid, conidia hamate Exidiopsis 14: 248 



Subfamily Dacryomycetae 



Basidia terete-clavate, furcate above 

 I. Pileus effuse, pulvinate or globose, typically sessile 

 I. Spores septate, at least upon germination 



a. Pileus gyrose ; spores not horseshoe-shaped 



Dacryomyces 6: 796 



b. Pileus tuberculiform ; spores horseshoe-shaped 



Delortia 6 : 795 



