=amara=, Fr. Taste very bitter. P. 3-5 cm. plane, obtuse or subumb. floccosely broken up, rufescent; g. crowded, narrow, white; s. 4-5 cm. white, solid, floccose then glabrous; sp. 4 x 2. [=vulpecula=, Kalchb. P. exp. depr. gilvous-rufescent; g. acutely adnate, narrow; s. hollow, naked, whitish. =socialis=, Fr. P. 2-3 cm. umb. even, yellowish-red; g. tinged yellow; s. 2-3 cm. reddish, rooting base hairy; sp. ----. Stem strigose as in _Marasmius personatus_. +++ _Pileus becoming yellowish._ =amarella=, Pers. Smell strong, taste bitter. P. 4-5 cm. plane, subumb. reddish-yellow or fawn colour; g. tinged grey, shining; s. 4-5 cm. pallid grey, white down at base; sp. ----. [=veneris=, Fr. P. exp. gibbous, yellow; g. crowded, shining white; s. elastic, glabrous, white. =vernicosa=, Fr. P. 4-7 cm. obtuse, even, glabrous, gilvous or deep yellow; g. yellow; s. 2-3 cm. glabrous, yellow; sp. ----. Distinguished from _Trich. cerinum_ by decur. gills. =venustissima=, Fr. P. 3-5 cm. exp. obtuse, striate, orange, tinged red; g. decur. orange; s. 3-4 cm. long, glabrous, orange-red; sp. 6 x 3.5. =alutacea=, Cke. and Mass. P. 1-1.5 cm. convex then umbil. edge incurved, even, tan; g. narrow, crowded, arcuate, decur. paler than p.; s. 3-4 cm. smooth, pale; sp. 6 x 4. =subalutacea=, Batsch. P. 3-5 cm. plano-depr. obtuse, yellowish then pale; g. broad, whitish; s. 4-5 cm. firm, elastic, glabrous; sp. ----. ++++ _Pileus greenish or pallid._ =odora=, Sow. Smell fragrant. P. 4-5 cm. wavy, pale, dingy opaque green; g. adnate, not crowded, pallid; s. 3-4 cm. elastic; sp. 6-8 x 4-5. =Trogii=, Fr. Smell fragrant. P. 4-5 cm. compact, greyish white; g. crowded, white; s. 4-5 cm. whitish, solid; sp. ----. Stouter than _C. odora_, and p. greyish, not green. [=vilis=, Karst. P. convex, exp. umb. glabrous, pellucidly striate, livid, pallid when dry; g. decur. pallid; s. equal, wavy, glabrous, umber, apex white-scurfy, livid when dry; sp. 2.5-3.5 x 2. [=bifurcata=, Weinm. P. exp. rather silky, clay-colour then pale, edge substriate; g. adnato-decur. simple or bifurcate, white; s. fibrillose. =rivulosa=, Pers. P. 3-7 cm. exp. or depr. obtuse, flesh-colour, rufescent &c. then pale, glabrous then with white down; g. broad, rather crowded, faintly tinged pink; s. 4-5 cm. tough, rather fibrillose, whitish; sp. 6 x 3.5. var. _neptunea_, Cke. Smaller than type. [=rigidata=, Karst. P. rigid, plane, depr. unequal, even, glabrous, pallid then whitish; g. adnate, pallid; s. thickened upwards, often compr. rooting, pallid; sp. 4-5 x 2-3. +++++ _Pileus white, shining when dry._ =cerussata=, Fr. White. P. 3-7 cm. plane, obtuse, even, subglabrous; g. closely crowded, adnate; s. 4-5 cm. smooth, elastic; sp. ----. var. _difformis_. Tufted, p. lobed; s. rugose; g. pallid. var. _obtextus_, Lasch. Snow-white. P. fibrillosely interwoven then glabrous, rather viscid; g. subdecur. crowded.