130 Journal of the .AIitciiell Society [June 



tine KxidUi 



Plants containing several small seed-like bodies, 

 which become quite conspicuous on drying 

 (in JV. atraia Pk. the centi-al body is said to 



be black) NaematcUa n ucleata 



Spores -white or yellow to orange (T. colorata Pk. 

 is said to have raisin-colored spores), spherical 



or broadly elliptic or pip-shaped, not curved Tremella 



Plants containing a firm, white, central body or a 



folded white membrane; surface minutely YOugh..NaemnteUa 



Hymenium with spines Tremelhxlon 



Texture fibrous and leathery or toughly coriaceous or 



varying to waxy; not shrinking greatly on drying. 



Plant growing from the ground, resembling a 



Thelephora, tough, firm, much branched from a 



fused base; tips white Tremcllodendron 



Plant growing on wood, tough, leathery, resembling 

 a Corticium or a little Stereum ; hymenium pink 



in our one species EichlerieUa 



Plant resupinate on wood or encrusting the bases 

 of plants or objects from the ground ; white 

 or buff or gray in our species Schacina 



EXIDIA 



Plants pulviiiate, convoluted, gelatinous, in some species with small 

 surface papillae or clots, often compounded in lines or masses; arising 

 from a small central point or elongated plate ; all the exposed surface 

 bearing the hymenium or only one surface in the more or less flabel- 

 liform E. gelatinosa. Basidia pyriform to subspherical, divided length- 

 wise into four cells, each cell with a long sterigma with a spore at its 

 tip. Spores elongated, curved, white, mostly two-celled before sprout- 

 ing. 



Brefeld has established a genus Ulocolla for plants like Exidia that 

 form straight, rod-like sporidia in sprouting, the true Exidias sprout- 

 ing to form groups of much curved, almost circular sporidia. He re- 

 tains E. gelatinosa and E. glandulosa in Exidia, placing in Ulocolla 

 E. saccharina Fr. and also TroneUa foliacea Pers., which he thinks 

 may not be distinct from the preceding. Brefeld erects still another 

 genus, Cratero.colla for dimorphic tremulose plants with spores like 

 Exidia, and he transfers to that genus Trcmclhi Cerasi Schum. 



(I.e. p. 98). T^ o ■■ 



Key to the Species''^ 



Plant raisin color, set with small darker specks on the 



sterile side E. gelatinosa (1) 



Plant dark, blackish-brown, usually with small scattered 



papillae on exposed surface E. glandulosa (2) 



Plant raisin color to sordid clay color without specks 



or papillae E. B<ardsleei (3) 



* For notes on other species see pages 15(1, 151. 



