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. 6 x 4. =Stevensoni=, B. and Br. P. 1-1.5 cm. obtuse, viscid, pale yellow; g. broadly adnate, broad, white; s. 2-3 cm. rufous, equal, fibrillose, rooting; sp. 10-11 x 7-8. Differs from _C. esculenta_ in broad, adnate gills. =psathyroides=, Cke. Ivory white. P. 1.5-2 cm. broad and nearly 2.5 cm. high, camp. obtuse, rather viscid; g. broadly adnate, broad; s. 6-10 cm. 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. 5-8 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; s. 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. 5-6 x 3. var. _stolonifer_, Jungh. P. springing from a long, creeping, cord-like mycelium. =eustygia=, Cke. Smell of rancid meal. P. 2-4 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 rugulose, edge striate; g. adnate, distant, white, tinged pink; s. tinged brown, twisted, wavy. =retigera=, Bres. P. 3-6 cm. campan.-exp. umb. dry, glabrous, fuscous-grey then pale, centre somewhat tawny, raised veins forming a network on the surface; g. broad, edge paler, fimbriate; s. 4-6 cm. pallid, whitish fibrillose, often compressed, somewhat rooting; sp. ----. [=plumipes=, Kalchb. P. campan. exp. subumb. slightly innato-fibrillose, livid fuscous, shining; g. broad, white; s. glabrous, white, base fibrilloso-strigose. Differs from _C. conigena_ in glabrous s. and broad g.