=murina=, Fr. P. 2-4 cm. exp. umbilicate, glabrous then rugulosely squamulose, dark brown then pale; g. slightly adnexed, broad; s. 5-7 cm. hollow, cylindrical, not rooting, grey; sp. 7 x 4. Somewhat resembling _C. atrata_, differing in very broad almost free gills. [=glacialis=, Fr. P. watery, fragile, obtuse, dusky fuscous then pale; g. free, grey; s. grey, naked. =protracta=, Fr. P. 1.5-2 cm. exp. shining, disc fleshy, depressed, subpapillate, greyish brown, margin striate; g. broad, grey; s. 5-7 cm. glabrous, root long fibrillosely strigose; sp. ----. =tesquorum=, Fr. P. 1-1.5 cm. plane, obtuse, even, blackish then pale; g. free, greyish brown; s. 3-5 cm. thin, brown, apex pruinose; sp. ----. [=cessans=, Karst. P. exp. then depr. glabrous, striate, pallid fuscous then pale and hoary, sublubricous; g. adnate, then adnato-decur. connected by veins, whitish; s. solid, pallid, apex pruinose. =clusilis=, Fr. P. 1-2 cm. exp. umbilicate, glabrous, hygr. livid then pale; g. arcuately adfixed, semicircular, broad; s. 2-4 cm. glabrous, pallid, not rooting; sp. ----. Differs from _C. tylicolor_ and _C. nummularia_ in umbilicate pileus, and decurrent tooth to gills. [=erosa=, Fr. P. exp. striate, hygr. silky when dry, grey; g. broadly emarginate, greyish; s. greyish-white, glabrous. =tylicolor=, Fr. P. 1-2 cm. exp. subumb. even, glabrous, bluish-grey, with white meal when young; g. free, distant, broad, grey; s. 2-3 cm. pulverulent, grey; sp. ----. _Introduced species._ =Dorotheae=, B. P. 2 cm. globose then exp. subumb. dark brown then paler, sulcate, squarroso-setulose; g. white, distant; s. 5-6 cm. slender, minutely discoid at base, granulated like pileus and beset with white bristles. =caldarii=, B. P. 1 cm. hemispherical, umb. brown, rugose; g. grey; s. 4-5 cm. pale grey, cartilaginous; sp. ----. MARASMIUS, Fr. A. COLLYBIA. _Margin of pileus incurved at first. Stem cartilaginous; mycelium floccose._ I. SCORTEI. _Stem solid, or stuffed then hollow, fibrous inside; outside villose over the cartilaginous cortex. Gills becoming free._ * _Base of stem strigosely woolly._ =urens=, Fr. P. Acrid. 4-7 cm. exp. glabrous, even, pinkish buff, pale when dry; g. free, becoming brownish, at length remote; s. 5-7 cm. everywhere covered with white farinose down; sp. 8 x 4. The acrid taste separates this sp. from _M. oreades_. [=subannulatus=, Trog. P. plane or depr. even, yellowish; g. adnate, reddish then brownish; s. with an incomplete ring about the middle, base with white down. =peronatus=, Fr. Acrid. P. exp. reddish brown, then tan colour, becoming lacunose, margin striate; g. adnexed, seceding, pallid then rufescent; s. 3-5 cm. villosely downy, lower portion coarsely strigose, yellowish; sp. 10 x 6-7. =porreus=, Fr. Smell of garlic. P. 2-5 cm. dingy yellowish then paler, striate, disc even, flaccid; g. distant, firm, yellow then pale; s. 2-4 cm. reddish-brown, pubescent; sp. subgl. 4.