174 FUNGUS-FLORA. 



Marasmius polyadelphus, Cke., Hdbk., p. 354; Cke., Illustr., 



P 'Agaricus (OmpMlia} polyadelphus, Fries, Hym. Eur., p. 165. 

 Agaricus polyadelpJius, Lasch, no. 208. 

 On rotten leaves. 

 Densely gregarious. 



III. APUS. 



Marasmius spodoleucus. B. & Br. 



Pileus 2-3 lines across, flesh very thin; shell-shaped, 

 resupinate, quite stemless, grey, slightly pulverulent or 

 scurfy ; gills few, white. 



Marasmius spodoleucus, B. & Br., Ann. Nat. Hist., May, 

 1859; Cke., Hdbk., p. 354 ; Cke., Illustr., pi. 1137c. 



Marasmius Broomei, Berk., Ann. Nat. Hist., 1795. 



On dead elm twigs. 



About 2 lines across, resupinate, altogether stemless, 

 conchiform, margin free, arched ; above cinereous, pulve- 

 rulent, or slightly furfuraceous. Hymeniuni white, very 

 even. Gills few, narrow, entire, so short as to leave a naked 

 space at the base. (B. & Br.) 



TEICHOLOMA. Fries. 



Pileus symmetrical, fleshy, rarely umbonate, never truly 

 umbilicate ; gills always (at least at first) sinuate behind, 

 often with a slightly decurrent tooth, white, rarely yellow, 

 often becoming spotted with reddish stains, and in some 

 species dingy grey, or lilac ; stem central, flesh continuous 

 with that of the pileus, flesh fibrous, not corticated ; veil 

 obsolete or evident in the form of down or fibrils on the 

 margin of the pileus ; ring and volva absent ; spores white 

 or dingy. 



Tricholoma, Fries, Syst. Myc., i. p. 36 ; Cke., Hdbk., p. 24 

 (as a subgenus of Agaricus). 



All the species grow on the ground, and are typically 

 fleshy and robust. Some species of Pleurotus with a nearly 

 central stem closely resemble in structure the present 

 genus, but are distinguished by growing on wood. Collybia- 



