CLASSIFICATION OF AGARICS 701 



737. Tricholoma sulphureum Fr. (Fn palatable) 



Syst. Myc, L821. (As Clitocybe.) 



Illustrations: Cooke, 111.. PI. 62. 



(linn. Champignons de Prance, No. To::. . 

 Bresadola, Fungh, tnang. e. vel., PI. 27. 

 Patouillard, Tab. Analyt., .\'<>. ."><>7. 

 Berkeley, Outlines, PI. J. Pig. 4. 

 Swanton, Pungi, PI. 44, Pig. 1. 

 Hard. Mushrooms. Fig. Hi. p. 65. 



PILETJS 2-8 cm. broad, convex-expanded, mostly umbonate, at 

 ti rst silky, soon glabrous, sulphur-yelloic to olwaceous-yellow, usual- 

 ly tinged brown on <lisk. sub<>ibboiis, even, margin decurved. FLESH 

 yellow or yellowish, thick on disk. GILLS adnexed with tooth, 

 emarginate at length, subdistant, yellow, moderately broad, thick, 

 firm. STEM 4-8 cm. long, 5-10 mm. thick, equal or variously en- 

 larged, sometimes curved, fleshy-fibrous, innately flbrillose, stuffed, 

 sometimes compressed, yellow to olivaceous-yellow, yellowish with- 

 in. SPOKES elliptical-oval, 8-10x5-6 micr., smooth. ODOR strong, 

 foetid or of coal-tar; TASTE disagreeable. 



Gregarious. < >n the ground in frondose woods of maple, birch, oak, 

 etc. Houghton, Ann Arbor. July-September. Infrequent. 



Our plant is well illustrated by Cooke, but it is usually a less 

 deep yellow, and often tinged with olive or reddish-brown on the 

 cap. It is well marked by the disagreeable, coal-tar odor and taste. 

 by the subdistanl gills and by the spores. Bresadola i Funjdii mang. 

 et. vel.) gives the spores as warty: this cannot be our plant. In 

 Stevenson the spores are given too small, being nearer those of T. 

 sulphurescens Bres., which also has the odor and color of T. sulphur- 

 < inn but whose .uills are said to be crowded and whitish. Fnler a lens 

 the dry pileus is often seen with micaceous-shining spots. Tt differs 

 from '/'. cJwysenteroides Pk. in its disagreeable odor, subdistanl uills 

 and stuffed to hollow stem. 



738. Tricholoma chrysenteroides Pk. 

 N. V. Mus. Rep. 24, 1872. 



"PILEUS 2.5-5 cm. broad, convex or plane, >n>t umbonate, firm, 

 dry. slightly silky or glabrous, jxilr yellow or huff, becoming dingy 



