460 CLASS BASIDIOMYCETEAE 



Fungus perennial, forming a two- or three-storied structure with chambers and 

 tunnels within which the scale insects live. Basidia formed on the outside, 

 more or less felty, layer. Often lichen-like. Septobasidium 



Fungus annual, not forming distinct "houses" for the parasitized scale insects. 

 Hypobasidia thick-walled with an apical germ-pore through which a 

 hypha grows to form a straight, four-celled epibasidium with definite 

 sterigmata. In addition conidia are produced. Uredinella 



Key to the More Important Genera of Family Dacrymycetaceae 



(Based on Martin, 1944) 



Fructifications broadly effused. 



Broadly effused from the first, without root-like bases; arid to waxy-gelatinous. 



Cerinomyces 

 (Ceracea of authors) 

 At first discoid or pustulate, soon becoming effused, attached to radicating 

 bases, tough waxy or waxy-gelatinous. Arrhxjtidia 



Fructifications remaining distinct even when anastomosis occurs. 

 Sessile and attached by a point or on a constricted root-like base. 



Pulvinate or discoid or rarely pezizoid, often cerebriforra; hymenium opposite 

 substratum, usually inferior. Dacrymyces 



Definitely pezizoid; hymenium concave, at least until very late. 

 Cortex concolorous; spores finally three to seven septate. 



Giiepinionsis 

 Cortex conspicuously white-tomentose; spores tardily multiseptate. 



Femsionia 

 Distinctly stipitate and pileate. 



Cornute to coralloid, Clavaria-like; hymenium amphigenous. 



Calo cera 

 Pileate, pileus much broader than stalk. 



Tough or cartilaginous, spatulate or cupulate; hymenium unilateral, 

 inferior. Dacryopinax 



(Guepinia of authors) 

 Gelatinous, pileus conical, subglobose, flattened or morchelloid; hymenium 

 amphigenous. Dacrijomitra 



Key to the Commoner Genera of Family Tremellaceae 



(Based on Martin, 1944) 



Fructification of thickly clustered, more or less anastomosing papillae, borne on a 



thin floccose subiculum. Stypella 



Fructification continuous, at least from an early stage, frequently enlarged by 

 anastomosis. 

 Resupinate, broadly effused, with indeterminate margins, probasidia globose to 

 ovate to pyriform, the first septum mainly longitudinal. 

 Hymenium smooth or nearly so; arid or tough to waxy or gelatinous. 



Sebacina 

 Hymenium with spines or spine-like structures. 



Spines sterile, piercing the hymenium; texture coriaceous to waxy or 

 tough gelatinous. Heterochaete 



