150 FUNGUS-FLORA. 



central umbo, greyish- brown, shining, margin paler and 

 distinctly striate ; gills ad nexed but remarkably ventricose, 

 almost truncate behind, very broad, 3 lines and more, rather 

 distant, grey, slightly powdered with white; stem about 

 3 in. long and 1 line thick, straight, even, glabrous every- 

 where, livid grey, slightly hollow, distinctly cartilaginous, 

 but becoming soft, produced underground into a tapering, 

 fibrous, rooting base. 



Agaricus (Collybia) protractus, Fries, Epicr., p. 97; Cke. ? 

 Hdbk., p. 74; Cke., Illustr., pi. 270A. 



On the ground in pine woods, &c. 



Distinguished by the very broad, rather crowded gills and 

 the rooting stem. C. plexipes differs in the free gills and 

 persistently campanulate pileus. Smell none, thus differing 

 from C, rancida. 



Collybia tesquorum. Fr. 



Pileus up to | in. across, flesh thin ; convex, obtuse, even, 

 blackish-brown, becoming pale ; gills free, rather distant, 

 ventricose, pale greyish-brown; stem up to 2 in. long, \ 

 line thick, equal, brown, apex pruinose, fistulose. 



Agaricus (Collybia) tesquorum, Fiies, Monogr., ii. p. 290; 

 Cke., Hdbk., p. 74 ; Cke., Illustr., pi. 270s, 



Among grass in sunny places. 



Stem fistulose, 1-i in. high, not a line thick, equal, flexuous, 

 glabrous, fuscous, apex mealy. Pileus almost membrana- 

 ceous, rather firm, convex, very obtuse, glabrous, not striate, 

 3-5 lines broad, blackish-brown, becoming pale. Gil Is- 

 entirely free, very ventricose, 2 lines broad, rather distant, 

 greyish brown. Smell none. 



The broad, free gills distinguish this from all allied, 

 species. (Fries.) 



Collybia clusilis. Fr. 



Pileus f-1 in. across, almost membranaceous ; hemi- 

 spherical then expanded, umbilicate, glabrous, hygrophanous, 

 livid, becoming pale ; gills adnexed and with a small de- 

 current tooth, broad, almost semicircular, plane, crowded, 

 white then pallid ; stem l|-2 in. long, thin, soft, polished 

 and cartilaginous, glabrous, not quite straight, not rooting, 

 coloured like the pileus, then pale, base with white down,, 

 stuffed then hollow. 



