=deliciosus=, Fr. P. 7-12 cm. convex, umbil. dusky orange, zoned; g. subdecurrent, orange; s. 3-6 cm. smooth; milk saffron red; sp. 9-10 x 7-8. Every part becoming red then greenish when bruised; sp. 7-10. Edible. [=flammeolus=, Fr. P. subumb. not zoned, flame coloured; g. adnate, yellow; s. hollow, pale orange; milk reddish, slowly acrid. Differs from _L. mitissimus_ in red milk. =acris=, Fr. P. 6-7 cm. soon infundib. viscid, sooty grey; g. pale yellow; s. often excentric, pallid, narrowed below; milk white then reddish; sp. 8-9 x 6-8. =fuliginosus=, Fr. P. 4-9 cm. soon depr. obtuse, even, at first with sooty-brown powder, then naked and greyish tan; g. adnate, white then tan; s. 6-8 cm. stuffed, naked, greyish tan; milk and flesh white then reddish-yellow; sp. 8-9. Distinguished from allies by pileus not being velvety. [=fuscus=, Roll. Caespitose, scented. P. exp. and slightly depr. round the umb. edge grooved, fibrillose or squamulose, sooty grey or dingy violet, often zoned; g. forked, pallid then ochre; s. firm ochre or tinged red, pruinose. [=argematus=, Fr. White. P. thin, exp. glabrous, edge even; g. adnate, crowded; s. stuffed, short, glabrous; milk slowly acrid, white then rufescent. ++ _Milk mild._ =retisporus=, Mass. P. 5-8 cm. depr. smoky brown, velvety, radially rugulose, minutely velvety; g. deeply sinuate, pale ochre; s. 3-5 cm. glabrous, paler than p.; milk white then brown; sp. globose, 10-11, with a raised network. Close to _L. ligniotus_, differing especially in the spores. [=sangifluus=, Fr. P. depr. even, not zoned, blood-red; s. narrowed upwards, paler; g. thin, white; milk blood-red; sp. 10. **** _Milk becoming grey._ =vietus=, Fr. P. 3-5 cm. subumb. then plane and umbil. flesh colour, pale and silky when dry; g. subdecurrent; 4-6 cm. soon hollow, livid; milk white then grey, becoming acrid; sp. 7-8. [=musteus=, Fr. P. convex then depr. zoneless, very viscid when moist, gilvous then pallid; g. closely crowded, whitish; s. short, whitish; milk scanty, slightly acrid, whitish then grey, as is the flesh when cut; sp. 6-9. ***** _Milk becoming glaucous-green._ =glaucescens=, Crossl. P. 4-6 cm. whitish, depressed, flesh thick; g. adnate, narrow, pallid; s. 2.5-3 long by 1.25 thick, whitish; milk white then glaucous-green; sp. echinulate, 6-7. ****** _Milk persistently white._ + _Milk mild._ # _Gills rufescent or yellowish._ =volemus=, Fr. P. 6-10 cm. rigid, depr. obtuse, dry, glabrous, golden tawny at length minutely broken up; g. decur. crowded, yellowish; s. 5-9 cm. solid, stout, coloured like p. pruinose; milk white; sp. 5-6. Edible. =ichoratus=, Batsch. P. 6-10 cm. thin, depr. even, glabrous, wavy, tawny, zoned; g. adnate, white then ochre; s. 3-7 cm. glabrous, tawny; milk white; sp. 8-10 x 6-7. Differs from _L. volemus_ in zoned p. and in being altogether more slender. _L. tithymalinus_ differs in acrid milk and pinkish gills.