=scalpturatum=, Fr. P. 5-8 cm. conical then exp. dingy, tomentose then broken up into rufous or umber scales; g. white then yellowish; s. 5-9 cm. whitish, fibrillose; sp. 6-7 x 3.5. var. _argyraceum_, Bull. Slender; p. silvery grey. var. _chrysites_, Jungh. Pale, p. and g. becoming yellowish. var. _virescens_, Wharton. Yellow-green when bruised. These are forms rather than varieties. ** _Gills rufous or greyish; edge usually spotted with rufous or black._ =imbricatum=, Fr. P. 8-12 cm. exp. obtuse, dry, rufous umber, innately squamulose, margin involute and downy at first; g. sinuate, crowded; s. 8-12 cm. solid, paler than p. apex white-pulverulent; sp. 6 x 4. =vaccinum=, Fr. P. 7-12 cm. exp. umb. dry, rufous, squamulose, margin at first involute and downy; g. almost adnate; s. 7-10 cm. hollow, fibrillose, brownish; sp. subg. 6-7. Differs from _T. imbricatum_ in hollow stem and reddish flesh. [=polyphyllum=, D. C. P. obtuse, irreg. with adpressed fibrillose scales; rufous umber; g. white then tinged red; s. solid, white, squamulose, apex striate. =immundum=, Berk. P. 5-9 cm. greyish, silky-squamulose, stained, margin incurved; g. greyish pink, separating readily from flesh; s. 4-6 cm. greyish, fibrillose; sp. subg. 4-5. Every part blackish when bruised. =inodermeum=, Fr. P. 2-5 cm. acute then umb. rufous brown, fibrillose and with radiating scales; g. free, ventricose, white, spotted red when bruised; s. 7-8 cm. fibrous, white with rufous tinge, apex powdered white; s. 7-8 x 4. [=furvum=, Fr. P. campan.-exp. wavy, dry, brownish, fibrillosely striate; g. entire, white then greyish; s. solid, fibrillose. [=unguentatum=, Fr. P. exp. umb. grey, viscid, floccosely-squamulose; g. very broad, crowded, whitish; s. white, solid, fibrillose. [=gausapatum=, Fr. P. bullate, obtuse, wavy, covered with dense superficial fibrils, edge at first incurved and with white wool; g. adnate, grey; s. solid, white, fibrillose. =terreum=, Schaeff. P. 5-8 cm. exp. umb. bluish grey with minute squamules; g. greyish, sinuate; s. whitish, fibrillose; sp. subgl. 5-6. var. _orirubens_, Q. Edge of g. reddish. var. _atrosquamosum_, Chev. P. grey with small black scales, g. whitish. var. _argyraceum_, Bull. Entirely pure white, or p. greyish. var. _chrysites_, Jungh. P. tinged yellowish or greenish. [=squarrulosum=, Bres. P. convex then exp. umb. dry, fuscous then lurid tan, centre black, with black squamules, edge fibrillose, exceeding gills; g. broad, crowded, whitish grey, reddish when bruised; s. colour of p. punctato-squamulose; sp. 7-9 x 4-5. [=triste=, Fr. P. conic then exp. umb. fuscous, fibrillosely scaly; g. white then greyish; s. fistulose, slender, floccose. III. RIGIDA. _Pellicle rigid, punctato-granulate, or broken up into glabrous fragments when dry._ * _Gills white or pallid, not rufous or grey spotted._