CLASSIFICATION 403 



G. gyaniilosa. — Thin, waxy, whitish or pale buff, often effused for 

 several inches ; granules minute, crowded. 



On dead wood and branches. 



G. papulosa. — White, very thin, easily separable from the 

 matrix, becoming much cracked ; warts crowded, minute, almost 

 globose. 



Patches 1-2 in. across, separable as a very thin film. 



On dead trunks. 



G. ocellata. — Patches livid with a dull purple tinge, edge in- 

 determinate, sterile ; warts obtusely conical, tips becoming col- 

 lapsed, unequal in size. 



On trunks. Not cracking when dry. 



G. crustosa. — Often forming a crust extending for se\^eral inches, 

 white or with a yellow tinge, thin, rather mealy ; warts minute, 

 crowded, unequal, subglobose, often collapsing at the apex. 



On bark of willow, pine, etc., also sometimes encrusting the 

 larger fungi, Polyporits, etc. 



G. mucida. — Patch somewhat gelatinous when moist, corrugated 

 when dry, pale dull yellow, effused for several inches ; warts 

 rather large, unequal, soft, hemispherical. 



Often forming large patches. Subgelatinous when moist, be- 

 coming wrinkled when dry. 



On rotten wood. 



Odontia 



Forming crusty patches on wood, consisting of interwoven 

 strands, dry, surface not waxy-looking; surface covered with 

 minute warts or spines, cristate or spinulose at the tips (when seen 

 under a good lens). 



Distinguished by the warts or spines having the tips penicillate 

 or crested with a tuft of minute spines and by the dry substance. 



0. fimbriata. — Crust usually a beautiful fawn-colour or pale buff, 

 sometimes tinged lilac, thin, substance traversed by prominent 

 l^ranching veins, edge fringed ; surface crowded with small granules 

 with fringed tips. 



Patches often very large, sometimes more or less covering fallen 

 trunks, stumps, etc. 



0. harha-jovis. — Crust white, then pale yellowish tan, thin, dry ; 

 warts conical, up to J in. long, with an orange fringe at the tip. 



Often forming patches up to a foot across, edge downy, white. 

 Differs from Radulum qiiercinum in the fimbriated orange tips of 

 the spines or warts. 



On decaying fallen wood, often on its under side. 



POROTIIELIUiM 



Entirely resupinate, thin, covered with small warts that are 

 distinctly perforated or sunken at the tips. 



