562 THE AGARICACEAE OF MICHIGAN 



Mycological Club near Eloise. It does not seem to have been re- 

 ported outside of New York. The pileus aud stem fade on 

 losing moisture, but it is not hygrophanous. It is a close relative 

 of E. salmoneum, but with different colors and marked by the 

 prominent cusp at the apex of the cap. 



Clitopilus Fr. 

 (From the Greek, klitos, a slope, and pilos, a felt-cap.) 



Pink-spored, without volva or annulus. Stem fleshy or fibrous, 

 not cartilaginous, confluent with the pileus whose margin is at 

 first involute. Gills decurrent or adnate but not becoming sinuate 

 nor seceding. Pileus usually depressed or umbilicate. 



Terrestrial plants, often with a farinaceous odor or taste; none 

 are known to be poisonous. The decurrent gills ally them with the 

 genus Clitocybe of the white-spored group. 



The PILEUS is glabrous or pruinose in most species ; in G. abor- 

 tivus a delicate silky tomentum covers the surface; in a number 

 it is hygrophanous, and in G. orcella it is slightly viscid. The 

 larger species are of a firm consistency ; the smaller, membranous 

 or fragile. The colors are usually dull or pale, whitish, grayish or 

 brownish. The GILLS furnish the characteristic mark of the 

 genus. Although usually decurrent, they are sometimes broadly 

 adnate as in Entoloma and Leptonia, but in that case do not be 

 come sinuate-emarginate in age, nor readily separate from the 

 stem. When decurrent, they are usually narrowed behind and end 

 in a point on the stem as in many Clitocybes. When mature the 

 i:ills of the different species present the same variation of color 

 as those of Entoloma. Some are pale flesh-colored or deep 

 lose; Peck grouped them into three groups with this difference 

 in color as a basis. At first the gills are usually white or whitish, 

 but in G. micropus, G. aJbogriscus, G. abort irus and C. novaboracen- 

 sis they are pale gray or ashy at first. The STEM is fleshy-fibrous 

 but may become rather rigid in the smaller forms. It is solid in 

 all the larger forms and in this respect differs markedly from most 

 Entolomas. There is no cartilaginous cuticle as in Eccilia. The 

 SCORES are angular in some species like those of Entoloma, 

 rounded in others as in Clitocybe, varying in intensity of color as 

 shown by the mature gills or spore-prints. Ricken has moved all 

 i hose with non-angular spores to other genera and omits the genus 

 Clitopilus entirely. CYSTIDIA are absent as far as known. The 



