52 Collybia. 



thelephora, Cke. and Mass. P. 2 3 cm. camp, lax, umb. 

 apiculate, dingy ochraceous, disc darker; g. adnate; s. 6 10 cm. 

 equal, hollow, glabrous, base dark ; sp. 9 x 7. 



ventricosa, Bull. P. 23 cm. camp. umb. glabrous, pale 

 tan ; g. with rufous tinge ; s. 6 10 cm. rufescent, base ventricose, 

 rooting; sp. . 



Differs from C. dryophila in ventricose, rooting stem. 



leucomyosotis, Cke. Strong scented, rather fragrant. P. 

 2 3 cm. exp. grey then paler ; g. adnate, sinuate, white ; s. 

 8 12 cm. equal, brittle, pallid; sp. 6x4. 



Stevensoni, B. and Br. P. l rs cm. obtuse, viscid, pale 

 yellow ; g. broadly adnate, broad, white ; s. 2 3 cm. rufous, equal, 

 fibrillose, rooting; sp. 1011x78. 



Differs from C. escidenta in broad, adnate gills. 



psathyroides, Cke. Ivory white. P. T5 2 cm. broad and 

 nearly 2 '5 cm. high, camp, obtuse, rather viscid ; g. broadly adnate, 

 broad ; s. 6 10 cin. equal, straight, hollow ; sp. 15 x 7. 



xanthopoda, Fr. P. 2 '5 cm. exp. umb. glabrous, lax, yellow or 

 tan colour then pale ; g. truncate behind ; s. 6 10 cm. equal, 

 hollow, tough, glabrous, yellowish, strigosely rooting; sp. . 



Differs from C. dryophila in umbo, broad gills, and strigosely 

 rooting stem. 



nitellina, Fr. P. 2 4 cm. exp. even, shining, tawny, hygroph. ; 

 g. adnate, white then tinted; s. 58 cm. equal, rigid, glabrous, 

 tawny; sp. . 



succinea, Fr. P. 2 2 '5 cm. even, exp. then subdepressed, 

 pale rufous, often cracked; g. adnexed, broad, thickish, serrulate; 

 s. 2 4 cm. polished, rufescent, not rooting; sp. . 



Differs from C. dryophila by broader, thicker, less crowded 

 gills, and from C. xanthopoda by absence of an umbo. 



nummularia, Bull. P. 2 3 cm. exp. subdepressed round 

 small umbo, pallid; g. free; 8. 3 5 cm. glabrous, pallid, apex 

 thickened; sp. . 



esculenta, Wulf. P. 1 2 cm. orbicular, exp. obtuse, glabrous, 

 pallid tan; g. adnate, lax, whitish; s. 2 '5 cm. indistinctly hollow, 

 even, polished, yellowish tan, rooting, base glabrous ; sp. . 



C. tenacella differs in fibrillose rooting base, and snow-white gills. 



tenacella, Pers. P. 1'5 2 cm. exp. subumb. even, glabrous, 

 brownish then pale ; g. broad, snow-white ; s. 5 10 cm. narrowly 

 fistulose, straight, even, glabrous, tawny, long root strigose; sp. 

 56 x 3. 



var. stolonifer, Jungh. P. springing from a long, creeping, cord- 

 like mycelium. 



eustygia, Cke. Smell of rancid meal. P. 24 cm. exp. subdepr. 

 often wavy, whitish, shining when dry ; g. dark grey ; s. 4 7 cm. 

 white above and sprinkled with pointed scales ; darker below, rooting; 

 sp. subgl. 4 5. 



[rhodella, Pat. P. thin, convexo-plane, reddish-brown, disc 



