Massee. — Oil the Fungus Flora of Neio Zealand. 329 



25. Collybia, Fries. 

 Pileus regular, usually ihin, margin incurved when young; 

 gills adnexed, thin, soft; stem with a cartilaginous cortex, 

 fistulose, often rooting, central ; spores white. 



Colhjbia, Fries, Epicr., p. 81 (as a subgenus of Agaric7cs). 



Most closely allied to Marasmius, which, however, differs 

 in the dry, coriaceous, tough substance of the entire plant 

 and in resuming its shape when moistened after being dried. 

 Tricholoma differs in having the stem fibrous outside, and not 

 cartilaginous and polished. Mycena differs in the margin of 

 the pileus being straight, and not incurved in the young 

 stage. On the ground. 



*Plants solitary or gregarious. 



86. Collybia radicata, Relh., Fl. Cant., no. 1040; Austr. Fung., 

 p. 17 ; Sacc, Syll. v., no. 728. 



Pileus convex, then expanded, broadly and obtusely um- 

 bonate, often somewhat irregular, glutinous, radiately rugose 

 or wrinkled, but not distinctly and uniformly striate, brownish- 

 olive, ochraceous-brown, sometimes with a greenish tinge, 

 rarely altogether whitish, 3-10 cm. broad ; flesh thin, soft, 

 elastic, white ; gills adnexed, narrowed behind, often with a 

 minute decurrent tooth, at length separating more or less 

 from the stem, ventricose, distant, rather thick, white ; sjDores 

 elliptical, 14-15 x 8-9 yu,; stem 8-17 cm. long above ground, 

 up to 1 cm. thick at the base, from where it becomes gradually 

 thinner upwards, glabrous, but at length more or less longi- 

 tudinally striate or grooved, the greyish-pallid cartilaginous 

 cuticle often twisted, base fusiformly rooting, descending 

 vertically, often as long as the above-ground portion of the 

 stem. 



In woods, &c., among grass; also in open places. New 

 Zealand, xlustralia, Tasmania, South Africa, Europe, United 

 States. 



Eeadily distinguished by the viscid, radially rugulose pileus, 

 and the long, tapering, polished stem, ending in an equally 

 long, tapering, rooting base. 



Collybia longipes, Bull., a species not yet met with in New 

 Zealand, closely resembles the present species in general habit 

 and appearance, but differs in having the pileus and stem very 

 minutely but distinctly velvety. 



87. Collybia xanthojjoda, Fries, Epicr., p. 91 ; Austr. Fung., 

 p. 20; Sacc, Syll. v., no. 836. Agaricus (Collybia) 

 xanthopus, Fries, loc. cit. 



Pileus thin, campanulate-convex, then expanded, some- 

 times rather wavy, umbonate, glabrous, dry, tan-colour, 

 becoming pale, margin at length spreading and slightly 



