=iris=, B. P. 1-2 cm. exp. obtuse, slightly viscid, striate, blue when young, then brownish with blue fibrils; g. free, tinged grey; s. 3-6 cm. bluish below, tinged brown above, with scattered fascicles of down; sp. ----. =amicta=, Fr. P. up to 1 cm. conico-camp. greyish, striate to middle, dry, glabrous; g. free, grey; s. 6-10 cm. filiform, tough, downy-pulverulent; sp. ----. =plumbea=, Fr. P. 1-2 cm. convex then flattened, obtuse, sulcate, lead colour powdered with white meal; g. adnate horizontal, grey; s. 6-8 cm. elongated, pulverulent, grey, apex hyaline, base strigose, fragile; sp. ----. [=ianthina=, Fr. P. conical, striate all over, glabrous, lilac; g. broadest in front, greyish-white; s. attenuated, flaccid, glabrous, slightly striate, brownish lilac. Differs from _P. pura_ in persistently conical pileus. =urania=, Fr. P. camp. then convex, dark violet when young, then blue becoming pale; g. uncinato-adnate, white; s. flaccid, even, glabrous, base rather rooting, floccose. =debilis=, Fr. P. 1-1.5 cm. camp.-convex, striate, whitish or livid then brownish, opaque, rugulose when dry; g. broadly adnate; s. 3-5 cm. flaccid, base fibrillose not rooting; sp. ----. [=lasiosperma=, Bres. P. striate, grey, umbo darker; g. greyish white; s. white, pruinose, base brownish, strigosely rooting; sp. globose, aculeate. =vitilis=, Fr. P. 4-7 mm. conical then exp. papillate, deeply striate when moist, brownish or greyish then pale; g. narrowed and adnate, greyish white; s. 6-14 cm. livid, flexile, rooting; sp. ----. Var. _amsegetes_, Secr. P. conico-campan. everywhere striate; g. not connected by veins, edge entire; s. thicker, short. [=latebricola=, Karst. P. campan. then plano-convex, disc depr. striate, livid, fuscescent when dry; g. adnato-decurr., whitish; s. filiform, tough, glabrous, pallid, root strigose; sp. ----. [=canescens=, Weinm. P. hemispher. then plane, subumbil., white then tinged grey; g. adnate, greyish; s. filiform, sooty grey, base fibrillose. =collariata=, Fr. P. 1-2 cm. convex, subumb. striate, brownish or greyish then pale; g. adnate to a collar, whitish then tinged pink; s. 2-3 cm. pale, polished, tough; sp. ----. [=cimmeria=, Fr. P. convex, slightly striate, dry, yellowish brown; g. adnexed, saffron yellow, edge white; s. glabrous, fibrillosely rooting. [=cladophylla=, Lev. P. camp.-convex, wavy, glabrous, greyish white, shining; g. adnate, branched; s. naked, white, base brownish. [=epiphloea=, Fr. P. persistently acutely conical, papillate, everywhere striate, whitish, apex tinged brown; g. free, ventricose, distant; s. diaphanous, pallid. [=supina=, Fr. Small. P. obtuse, striate; g. almost free, ventricose, white; s. short, incurved, tough, glabrous, white. =speirea=, Fr. P. 1 cm. convex, dark disc becoming depr. greyish with brown lines; g. plane then decurrent, shining white; s. 3-4 cm. tough, polished, fibrillosely rooting; sp. ----.