=mammosus=, Fr. P. 4-6 cm. acutely umb. then depr. zoneless, dry, greyish brown or lurid, covered with grey down; g. adnate, pale rusty; s. 5-7 cm. stuffed then hollow, pallid, downy; milk white, slowly acrid; sp. 8-9. =aurantiacus=, Fr. P. 3-5 cm. depr. even, zoneless, slightly viscid dull orange; g. decurrent, ochre; s. 6-7 cm. coloured like p.; milk white, becoming acrid; sp. 9-10. _L. volemus_ differs in pruinose stem, and _L. mitissimus_ in mild milk. [=Porinae=, Roll. P. very firm, rugose, glabrous, viscid, orange yellow, generally with red zones, convex then plane, at length infundib. irreg. subumb. edge even incurved; g. yellow then ochre, crowded; s. ochre, rooting; milk white, scanty, rather acrid; sp. 7.5. =picinus=, Fr. P. 5-7 cm. convex then plane, umb. brownish umber, at first villosely velvety then disc almost glabrous; g. adnate, much crowded, ochre; s. 4-7 cm. even, glabrous, paler; milk white; sp. 9-10. (5-6 Sacc.) Velvety p. and acrid milk mark this species. =spinulosus=, Q. P. 2-3 cm. depr. umbo acute, flesh colour or rosy, with minute erect spines towards margin; g. decur. flesh colour with yellow tinge; s. 2-3 cm. flexuous, rugulose, paler than p.; milk white; sp. 8. var. _violaceus_, Cke. P. rosy violet; s. almost smooth. =lilacinus=, Lasch. P. 2-5 cm. depr. papillate, rosy-lilac, floccose when dry; g. adnate, tinged pink; s. 2-3 cm. pallid with a white bloom; milk white; sp. 7-10. =lateritioroseus=, Karst. P. plano-depr. often subinfundib. and irreg. granulose or squamulose especially near the edge, zoneless or nearly so, pale brick-red with rosy tinge; g. decur. pinkish; s. solid, colour of p., apex with white meal; milk scanty, white, acrid; sp. 9-10 x 8-9. Differs from _Lact. lilacinus_ in decur. g. and pileus not floccose. =controversus=, Pers. P. 7-12 cm. umbil. then infundib. whitish with red spots or zones; g. closely crowded, soon with flesh-coloured tint; s. 3-5 cm. white; milk white; sp. echin. 6-8. [=viridis=, Fr. P. depr. wavy, dry, green; g. white tinged rufous; s. hollow, stout, base narrowed; milk white; sp. 8.5 x 6. [=tabidus=, Fr. P. submembranaceous, acutely umb., reddish then pale, edge striate when moist; s. subfistulose, pallid; g. flaccid, pallid; milk; sp. 8 x 4-5. Recognised by very thin, acutely umbonate p.; owing to absence of description of milk, position uncertain. [=rutaceus=, Lasch. P. subdepr. almost glabrous, opaque, reddish-fawn; g. subdecur. crowded, narrow, yellowish clay-colour. Smell like _Ruta graveolens_, taste bitter and of camphor. _Stem excentric or lateral; growing on wood._ [=lateripes=, Fr. P. white tinged rosy, subdimidiate; g. crowded, pallid; s. lateral; milk white, rather acrid. [=hometi=, Gill. P. lateral, fleshy, convex, pale yellowish ochre, edge irreg. flesh white then violet; g. slightly decur. narrowed at both ends, pallid, spotted violet; s. lateral, stout, colour of p.