480 THE AGARICACEAE OF MICHIGAN 



shawl irith a persistent pith, white within and without, texture 

 abrous. SPOKES fusiform-elliptical, inequilateral, smooth or ob- 

 scurely rough, apiculate, 11-13 x 6-7 micr. CYSTIDIA none. Sterile 

 cells on edge of gills, clavate-thickened at apex, 55-65 micr. long. 

 ODOR and TASTE slightly of radish. 



(Dried: Pileus and stem whitish, dingy; gills cinnamon- 

 brown.) 



Gregarious. On the ground, in copses, woods, etc., among grass. 

 Ann Arbor, Detroit. September-October. Infrequent. 



Differs from H. neurophyllum Atk. in the lack of costate gills, the 

 persisted pith of the -stem, smaller spores and broader gills. Its 

 sterile cells are clavate-thickened like the upper portion of many 

 paraphyses among the Pezizaceae, a character which is said to be- 

 long to the sterile cells on the gills of H. neurophyllum Atk. It 

 differs from H. album Pk. by the broader gills, floccose-mealy stem 

 and smaller spores; and from E. albidulum by the lack of cystidia, 

 broader gills, etc. 



506. Hebeloma sarcophyllum Pk. 



X. Y. State Cab. Eep. 23, 1872. 

 Illustrations: Ibid, PL I, Fig. 7-11. 



P ILEUS 3-6 cm. (or more) broad, chalk-white, becoming dingy 

 white, convex, obtuse, glabrous, subviscid (moist), soon dry, even. 

 FLESH white, thickish. GILLS rather narrow, adnexed, deeply 

 emarginate, close, deep rose to flesh color, edge minutely fimbriate. 

 STEM 3-8 cm. long, 4-8 mm. thick, equal or tapering upward, clavate- 

 bulbous a1 &rst,white, firm, stuffed by a persistent pith, finally hol- 

 low, fibrillose, glabrescent, minutely scurfy-mealy at apex, subshin- 

 ing. SPORES ventricose-elliptical, subinequilateral, ovate-pointed 

 ;ii both ends, obscurely rough, at first deep-flesh color in mass, but 

 changing to dark brown, 9-12 x 5-6 micr. STERILE CELLS on edge 

 of gills, cylindrical, slender, 5-6 micr. diam. CYSTIDIA similar, 

 rarely found. ODOR subfarinaceous, TASTE bitterish. 



Solitary, scattered or gregarious. On grassy ground, in frondose 

 op mixed woods. Ann Arbor, Huron Mountains. June-August. 

 Infrequent. 



Pen linkable for the deep pinkish color of the mature gills and 

 spores which simulate those of a Psalliota. There is no cortina, 

 else the shape and structure of the spores would indicate a Cor- 



