Habitat on fungi like _C. tuberosa_, from which it differs in adnate gills. ** _Gills very narrow, closely crowded._ =hariolorum=, Bull. P. 2-5 cm. exp. glabrous, dingy tan; g. white then pallid; s. 5-7 cm. narrowed upwards, rufescent, woolly-hirsute; sp. 6-7 x 3-4. =confluens=, Pers. P. 2-4 cm. obtuse, flaccid, glabrous, rufescent then pallid; g. closely crowded; s. 6-12 cm. more or less compressed, rufous, everywhere with white down; sp. subgl. 7-9. Differs from _C. hariolorum_ in densely tufted habit. =ingrata=, Schum. P. 2-3 cm. convex, umb. even, brownish tan; g. free, pallid; s. 5-10 cm. twisted, subcompressed, with white meal above, umber and naked below, equal; sp. ----. [=lilacea=, Q. Subtomentose, lilac; p. thin, hoary; g. amethyst; s. slender, base with white down. [=lupuletora=, Weinm. P. exp. depr. even, glabrous, livid or pale tan then pallid; g. adnate, crowded, white; s. not rooting, white and pulverulently scaly above, brownish, glabrous, and narrowed below. [=foetidissima=, Gill. Smell extremely foetid. P. convex, umbil. wavy, yellowish white; g. whitish; s. white. [=orbicularis=, Secr. P. exp. umb. brown, disc with small viscid blackish warts; g. adnexed, crowded; s. rufescent with white meal. [=myosura=, Fr. P. orbicular, exp. obtuse, rufous, becoming pale; g. free, much crowded; s. rufescent, apex powdered, root long, glabrous. =conigena=, Pers. 1-2 cm. exp. subumb. glabrous, reddish-yellow or pale; g. free, much crowded, pallid; s. 3-7 cm. pulverulent, pallid, base strigose, rooting; sp. 4-5 x 3. Differs from _C. tenacella_ and _C. esculenta_ in free, crowded, narrow gills. var. _lutea_, Vogl. P. yellow; g. densely crowded, white. =cirrhata=, Fr. 1-1.5 cm. exp. at length umbilicate, silky, opaque, white; g. adnate; s. 2-5 cm. slender, wavy, whitish, with a downy root; sp. 4-5 x 2-3. Differs from _C. conigena_ in adnate gills, and from _C. tuberosa_ in downy rooting stem not springing from a sclerotium. =tuberosa=, Bull. P. about 1 cm. white, exp. umb. even; g. adnate; s. 1.5-4 cm. thin, white, root glabrous and springing from a sclerotium; sp. 4-6 x 2-3. =racemosa=, Pers. P. up to 1 cm. convex, papillate, grey, subtomentose; g. adnate; s. 3-5 cm. base dark, springing from a blackish sclerotium; several minute stems with abortive pilei often spring from the stem; sp. ----. III. LAEVIPES. _Stem thin, equal, fistulose, naked, glabrous (except base), not conspicuously striate._ * _Gills broad, lax, usually more or less distant._ =collina=, Scop. P. 2-5 cm. exp. umb., brownish then pale; g. adnexed then free; s. 6-10 cm. equal, even, glabrous, base abrupt, downy; sp. ----. =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. 2-3 cm. camp. umb. glabrous, pale tan; g. with rufous tinge; s. 6-10 cm. rufescent, base ventricose, rooting; sp. ----.