=senilis=, Fr. P. 4-5 cm. infundib. brownish tan, concentrically cracked, edge spreading; g. narrow, soon colour of p.; s. 2-3 cm. solid, glabrous, pallid; sp. 5-6 x 4. +++ _Pileus clear white._ =catina=, Fr. P. 4-5 cm. plane then infundib. glabrous, white, discoloured when old; g. decur. somewhat crowded, white; s. 3-7 cm. elastic, white; sp. ----. _C. infundibiliformis_ differs in not being umb. and in being glabrous. _C. phyllophila_ differs in adnate gills. =tuba=, Fr. White. P. 5-8 cm. umbil. margin even, shining with a silky lustre when dry; g. broad, closely crowded, decur.; s. 4-5 cm. equal, soon hollow and compressed; sp. ----. Differs from _C. pithyophila_ in umbil. p.; g. deeply decurrent. =ericetorum=, Bull. White. P. 2-3 cm. fleshy, subturbinate, glabrous, shining when dry; g. distant, connected by veins; s. 2-3 cm. glabrous; sp. ----. Resembling _Hygr. niveus_ in appearance. B. _Pileus thin, hygrophanous, soft, watery._ **** CYATHIFORMES. _P. thin, depressed then cup-shaped. Colour dingy when moist._ =cyathiformis=, Bull. P. 3-7 cm. deeply depr. edge incurved, sooty-brown then pale; g. dingy; s. 5-9 cm. stuffed, elastic, narrowed upwards, reticulately fibrillose, sooty; sp. ----. var. _cinerascens_, Fr. Smaller. P. pale grey-brown; g. tinged yellow. =expallens=, Pers. P. 3-5 cm. plane then deeply depr. greyish brown then pale, margin soon expanded; g. greyish white; s. 4-5 cm. greyish white, hollow, equal; sp. ----. =obbata=, Fr. P. 2-3 cm. plane, umbil. then deeply depr. sooty brown, edge at length striate; g. decur. distant, greyish, pruinose with white; s. 4-5 cm. glabrous, greyish brown, hollow; sp. ----. [=fritilliformis=, Lasch. Convex-umbil. then infundib. glabrous, grey then pallid, becoming fuscescent when dry, edge sublobed; g. thickish, pallid; s. subtomentose, thickened upwards. [=calatha=, Fr. P. exp. infundib. hygr. edge soon spreading, even, sooty; g. deeply decur. violet then reddish; s. solid, tough, striately rugose, narrowed below, violet then reddish. =pruinosa=, Lasch. P. 4-5 cm. umbil. then deeply depr. brown, powdered with grey bloom; g. decur. crowded, narrow, dingy; s. 3-5 cm. fibrillose, pallid; sp. ----. =concava=, Scop. P. 3-5 cm. broadly and deeply umbil. flaccid, wavy, dark grey; g. decur. narrow, smoky; s. 2-3 cm. equal, glabrous, grey; sp. ----. [=vibecina=, Fr. P. exp. then infundib. greyish livid then pale, margin soon extended, striate; g. deeply decur. greyish white; s. hollow, glabrous, rather wavy. [=Queletii=, Fr. P. convex, umbil. whitish with brown squamules when dry; g. deeply decur. whitish; s. flocculose, whitish. =suaveolens=, Fr. Fragrant. P. 2-3 cm. convex then concave, discoid, buff, hygr. margin striate; gills crowded, pallid; s. 4-5 cm. thinner upwards, tinged brown; sp. 8 x 5. Among grass. Differs from _C. fragrans_ in concave pileus with striate margin.