284 THE AGARICACEAE OF MICHIGAN 



277. Psilocybe conissans Pk. 

 N. Y. State Mus. Kep. 41, 1S88 (as Clitopilus). 



PILEUS 2.5-5 cm. broad, broadly convex becoming plane, hygro- 

 phanous, watery-broivn to pale chestnut when moist, pale alutaceous 

 to buff when dry, striatnlate then subrugulose, glabrous or sub- 

 pruinose, veil lacking. FLESH thin, whitish. GILLS adnexed, 

 rounded behind, thin, close, brownish then dusted by the reddish- 

 cinnamon or vinaceous-red spores. STEM 2.5.5 cm. long, 2-4 mm. 

 thick, equal, rather slender, rigid-fragile, hollow, white, curved or 

 flexuous, glabrous, pruinose at apex. SPORES elliptical or almost 

 oblong, 7-9x4-5 micr. (rarely longer), smooth, hyaline but with 

 reddish tinge under the microscope, brick-red in mass. 



Caespitose around base of stumps in hemlock-maple woods. 

 Marquette and Houghton. August-September. Rather rare. 



A peculiar plant, whose spores might well lead one to look for 

 it under the pink-spored group but whose general appearance is that 

 of a Psilocybe. Under the microscope the spores are almost hyaline- 

 white but the exospore is slightly tinged with reddish ; when dusted 

 on the cap and stem, as is often the case, they have a brick-red to 

 vinaceous color. Peck originally referred it to Clitopilus, but in the 

 N. Y. State Bull. 122, he changed it to Psilocybe. 



OCHRASPORAE 



Paxillus Fr. 

 (From the Latin Paxillus, a small stake.) 



Ochre-spored. Stem confluent with the pileus, fleshy, tending to 

 be eccentric or lacking. Gills mostly decurrent, forked behind and 

 anastomosing on the stem, easily separable from the trama of the 

 pileus. 



Fleshy, putrescent, distinct fungi, growing on the ground, forest 

 debris or decayed wood. When present the stems are stout and 

 usually slightly eccentric, sometimes central; in two species the 

 pileus is sessile and lateral, and the stem is lacking. The genus 

 Paxillus is here limited to include only the plants placed by Fries 

 under the tribe Tapinia. The white-spored species have been re- 

 ferred to Clitocybe under the section Paxilloideae. P. lepista Fr., 

 which is said to have reddish spores is not known to me. Ricken 



