CLASSIFICATION 441 



P. gyrans.- — Hymenophore with a slender, thread-like stem which 

 is often wavy, downy ; club cylindrical and subovate, thicker than 

 the stem, white, springing from a small brownish sclerotium (spores 

 subglobose, 5-6 p- diam.). 



Entire plant ^f in. high ; stem very thin, straight or variously 

 wavy or gyrose. 



On dead leaves, stems of grasses, etc. 



var. grevillei. — White, unbranched ; club thickened, tip blunt ; 

 stem hair-like, downy, not springing from a sclerotium. 



On dead leaves. 



P. nmscicola. — Hymenophore with a thin base, and gradually 

 thickening into a cylindrical club with a blunt tip, white, 2-3 in. 

 high, up to 2 lines thick (spores 5-6x3 fj). 



On living mosses. 



P. filiformis. — Hymenophore with a slender, more or less branched, 

 decumbent, brown stem ; clubs subcylindrical, rather thicker than 

 the stem, whitish, 1-2 in. high (spores subglobose, 4-5 // diam.). 



Among dead leaves. 



P. gracilis. — Hymenophore minute, 1-3 lines high ; stem short, 

 distinct, smooth or minutely hispid ; club pallid, tip somewhat 

 acute, simple or forked (spores elliptical, 6-7x4 ji; cystidia 

 numerous, large, somewhat acute at the tip). 



Tip of club often quite sharp-pointed. 



On rotten, damp leaves, etc. 



P. pusilla. — Hymenophore very minute, about i line high, 

 slender, smooth, M'hite (spores colourless, elliptical, 5x3 i>). 



On dead Equisetum, fallen leaves, etc. 



P. micans. — Hymenophore very minute, about i line high ; stem 

 short, whitish ; club with a blunt tip, club-shaped, rosy and 

 shining (spores colourless, elhptical, 8-10X4-6 /x). 



Scattered or gregarious, about a line high ; distinguished by 

 the rose-coloured, pruinose head. 



On dead thistles, etc. Not uncommon. 



P. culmigena. — Hymenophore whitish, hyaline, ovate, tip blunt ; 

 stem distinct, very short, altogether 1-2 lines high (spores colour- 

 less, elhptical, 4x2-2 '5 fj-). 



Scattered ; very minute. Cartilaginous when dry. 



On grass stems, etc. 



P. quisquilaris (PI. XXIV, fig. 5). — Hymenophore whitish ; stem 

 thin, springing from a minute sclerotium ; head club-shaped, often 

 compressed, sometimes forked (spores cylindric-oblong, curved, 

 13-15x6-7 /x). 



Soft when fresh, rigid when dry. Resembling Clavaria uncialis 

 in general appearance, but markedly different in the large, sausage- 

 shaped spores. 



On dead fern stems, leaves, etc. Gregarious. 



