122 FUNGUS-FLORA. 



and finally altogether blackish, but the spores are white, 

 elliptical, 7-9 X 4-5 //, ; stem stuffed at first, then imperfectly 

 hollow, tough, elastic, attenuated from the slightly bulbous 

 base, 2-4 in. long, 3-4 lines thick, fibiillosely striate, 

 brownish or greyish- white, apex naked; often attenuated 

 below the bulb into a tapering rooting base. 



Agaricus (Collybia) semitalis, Fries, Epicr., p. 82; Cke., 

 Hdb'k., p. 63 ; Cke., Illustr., pi. 292. 



On the ground by paths ; in woods, after much rain. 



Sometimes caespitose, not truly allied to any species, and 

 its true position very doubtful; judging from habit, it 

 belongs to this group, but it grows on the ground, and the 

 cuticle of the stem is membranaceous and fibrous inside. 

 Every part truly somewhat cartilaginous, rather tough, size 

 very variable, sometimes tall, at others very small. The 

 typical form is described above, other noticeable forms are : 

 (B) Stem sometimes short, 1 in. long, 2 lines thick, equal 

 but curved and ascending, altogether solid; pileus piano- 

 depressed, irregular, only slightly hygrophanous : (C) Stem 

 solid, bulbous, bulb up to 1 in. thick, &c. Readily known 

 by the peculiar characters of the gills. (Fries.) 



Collybia fusipes. Bull. 



Pileus 1 1-2| in. across, flesh rather thick, convex then ex- 

 panded, umbonate (the umbo at length disappearing) ; even, 

 glabrous, dry, reddish-bay, becoming pale and dingy tan- 

 colour, generally cracked and broken up when dry ; gills 

 adnexed and joined into a ring, soon separating from the 

 stem and becoming free, broad, distant, firm, connected by 

 veins, crisped, white then almost coloured like the pileu.s, 

 often spotted ; stem 3-4 in. long, in. and more thick, 

 tumid and ventrico.se at the centre" and tapering to both 

 ends, often twisted, longitudinally, grooved, rufous or rufous- 

 brown, base rooting, fibronsly stunvd, then hollow, re- 

 markably cartilaginous outside; spores 5-6 X 3-4 //-. 



Agaricus fusipes, Bull, Champ., t. 106 ; Cke., Hdbk., p. 63 ; 

 Cke., Illustr., pi. 141. 



On or near stumps. 



Densely tufted. Pileus lj in. broad, when young hemi- 

 spherical, smooth, dull vinous-brown, fleshy, margin in- 

 curved; then expanded, cracked, sometimes tesselated and 



