CLITOCYDE. 437 



Y. ORBIFORMES. 



* Gills grey or olive, 



Clitocybe orbiformis. Fr. 



Pileus about 2 in. aoross, flesh thin, convex then plane, 

 very obtuse, not truly depressed, orbicular, glabrous, smoky- 

 grey, hygrophanous, margin spreading, even; gills adnately 

 decurrent, rather distant, 2-3 lines broad, greyish-white ; 

 stem about 3 in. long, 4-5 lines thick, equally attenuated 

 upwards from the thickened, downy base, round, tough, 

 somewhat striate, grey, naked upwards, fibrous outside, 

 •elastic, stufied. 



Agaricus {Glytocihe) orbiformis. Fries, Epicr., p. 76. 



Grassy places in pine woods, &c. 



Smell none. Analogous with, but not allied to C. cyatlii- 

 formis. 



■a' 



Clitocybe metachroa. Fr. 



Pileus 1—2 in. across, flesh thin, convex at first, soon plane 

 or even depressed, brownish-grey when young, then livid, 

 whitish wdien dry, margin even, slightly striate when old ; 

 gills adnate, scarcely decurrent, crowded, linear, flat, thin, 

 greyish-white ; stem stuffed when young, round, soon hollow 

 and consequently easily compressed, about H in. long, 

 2 lines thick, equal, tough, fibrous outside, grey, apex wiih 

 white meal. 



Agaricus (Clytocyhe) metachrous, Fries, Epicr., p. 77 ; Cke., 

 Hdbk., p. 59; Cke., Ulustr., pi. 115. 



In dry pine woods, &c. 



Very variable, hut easily recognised by the following 

 points : — Smell none ; apex of stem mealy ; pileus convex 

 (•subumbonate), then plane and depressed ; gills greyish- 

 white. (Fries.) 



Clitocybe zygophylla. Cke. & Mass. 

 Pileus 2-4 in. across, fleshy at the disc, very thin else- 

 where ; convex then expanded, disc often slightly depressed, 

 tough, flaccid, hygrophanous, with a greyish tint when 

 moist, pale ochraceous-white when dry, margin thin, in- 



