56 AGARICACE^: CUtocybe 



213. C. eoneava Gill, (from the concave pileus) a c. 



P. deeply umbilicato-depressed, very thin, tough, grey- or olive- 

 brown ; marg. not striate. St. ashy-grey. G. very crowded, 

 colour as P. 



Often gregarious. Odour none. Plantations, woods, fir, pastures ; rare. 

 Sept. 2^ X I X r 3 in. Must not be confounded with Omphalia. 



214. C. brumalis Quel. (from its usual time of appearance ; bntma, 



winter) a b c. 



P. broadly plano-umbilicate, brown or whitish. St. hollow, paler 

 than P. G. crowded, livid to yellowish-white. 



Taste sometimes slightly nauseous ; odour weak, earthy, not unpleasant, 

 evanescent or none. Woods, on pine-leaves, amongst heather, on commons, 

 on dirt-heaps ; common. Oct. -Jan. 2 X 2^ x \ in. 



e. Orbiformes. 



214a. C. orbiformis Gill, (orbis, a circle, forma, form) a c. 



P. convex, plane, obtuse, not truly depressed, glabrous, hygro- 

 phanous, smoky-grey; marg. spreading, even. St. stuffed, 

 elastic, somewhat striate, attenuate and naked upwards, grey, 

 base downy. G. adnato-decurrent, somewhat distant, greyish- 

 white. 



Odour none. Grassy places in pine-woods. Autumn. 2 X 3 X T 3 5 in. 

 Analogous with, but not allied to 208. 



215. C. metaehroa Quel. (Gr. metachroos, changing colour) a b c. 



P. umbonate, then piano-depressed, ochreous-whitish to brownish- 

 grey ; marg. at length striate. St. white. G. adnato-decurrent, 

 ashy-whitish. 



Odour none. Woods, pine, dry places, grassy woods, on leaves, rotting 

 fern, turf, earth, dirt-heaps. May-Nov. if X 2j x \ in. 



216. C. pausiaea Gill, (from its olive-coloured gills ; pausia, an 



olive) a c. 



P. piano-depressed, subumbonate, tan, brown or grey. St. ashy- 

 grey, white above. G. obtusely adnato-rounded. 

 Odour weak of meal. Woods, pine. Oct. if x if X J in. 



217. C. ditopus Gill, (from the habit, often growing in twos ; Gr. dittos, 



twofold, po us, a foot) a b c. 



P. broadly umbilicate, horny, dark ashy-grey, or dull brown- or 

 fuscous-ochre ; marg. clouded-sooty. St. hollow, pale ashy- 

 grey. G. adnate, crowded, colour as P. 



Odour strong of new meal. Woods, pine, dead leaves. Oct. 3 X 2 X J in. 



218. C. diatreta Quel. (from its perforate stem; Gr. diatrctos, per- 



forate) a. 



P. piano-depressed, flesh-colour, then tan. St. pallid flesh- 

 colour. G. adnato-decurrent, colour as St. 

 Odour almost obsolete. Woods, pine. Autumn. \\ X ij X \ in. 



