58 AGAEICIIiJI. 



150. Agaricus (Collybia) tuberosus. Bull. "Tuberous 



Collybia." 



White ; pilciis slightly fleshy, convex, then expanded, umbo- 

 nate, smooth, even ; stem snb-fistulose, obsoletcly pulverulent ; 

 root smooth, springing from a sclerotioid tuber, somewhat yel- 

 lowish ; gills adnate, crowded, slender, white. — Fr. Epicr. p. 90. 

 Gard. Chron. 1860, p. 4.hQ,,fig. Bull. t. 256. Fl. Dan. 1613. 

 Batsch. f. 93. Grev. t. 23. Eng. FL v. p. 51. Berk. Mag. ZooL ^ 

 Bot. no. 44. 



On dead Russules, Szq.^ and on the ground. Aug. — Nov. 



Small; pileus 2-9 lines broad, sub-camose, at first convex, then expanded, 

 and sub-umbonate, sometimes depressed, white, shining, with a satiny lustre; 

 gills numerous, close, acutely adnate ; stem 1 in. long, very slender, white, 

 or subrufeseent, under the lens pulverulent, falsely fistulose ; the stems have 

 a tendency to become engrafted on each other; either attached to or without 

 a Sclerofnim. — Eafi. Fl. Abundant in the tubes of a dead Pobiporus squa- 

 mosus, Epping Forest, 1869. Specimen in the British Museum.' — TF. G. S, 

 Spores -0001 X '00007 in. 



151. Agaricus (Collybia) racexnosus. P. "Branched 



Collybia." 



Pileus sub-membranaceous, convex, grey, somewhat tomentose, 

 (sprinkled with racemose abortive pilei), stem stuffed, base 

 sclerotioid, black ; gills adnate, crowded, white. — Fr. Epicr. p. 

 90. Sow.t.^^1. Pers.disp.t.3,f.8. (Nees.f. 1^0.) Mag.Zool. 

 ^ Bot. no. 45. 



On the ground, or on putrid Agarics. Very rare. 

 Turns almost black in drying. 



Sect. 3. Lcevipecles — stem naked, smooth. 



152. Agaricus (Collybia) acezvatus. Fr. "Tufted Collybia." 



Ctespitose ; pileus somewhat fleshy, convex, then plane, at 

 length umbonate, smooth , hygrophanous ; margin slightly striate ; 

 stem fistulose, equal, naked, rufous ; base rooting, tomentose ; 

 gills free, narrow, much crowded, at first whitish. — Fr. Epicr. p. 

 92. 



At the base of old fir stems. 



Pileus when moist reddish, when dry whitish, 2-3 in. broad ; stem 2-4 in. 

 long, 1-2 lines thick, quite smooth, except at the base. 



153. Agaricus (Collybia) collinus. Scop. " Hill Collybia." 



Pileus- rather fleshy, campanulate, then expanded, umbonate, 

 smooth ; stem fistulose, equal, abrupt, naked, even, growing pale ; 



