. Guide to Sowerby's models of British fungi in the Department of Botany, British Museum (Natural History) . cies arehighly fragile and fugitive, others are firmer Fig. n.—Type form of more persistent. They all grow in fdnT^; and early winter. 32. Agaricus purus Pers.—Pileus campanulate, then expanded,at length plane, umbonate, striate at margin, rose-coloured, varying topurple, lilac, violet, bluish-grey, white, or yellowish, highly brittleand semi-transparent; gills adnate, broad, ventricose, connected bya network of veins, pallid or whitish ; stalk hollow, some


. Guide to Sowerby's models of British fungi in the Department of Botany, British Museum (Natural History) . cies arehighly fragile and fugitive, others are firmer Fig. n.—Type form of more persistent. They all grow in fdnT^; and early winter. 32. Agaricus purus Pers.—Pileus campanulate, then expanded,at length plane, umbonate, striate at margin, rose-coloured, varying topurple, lilac, violet, bluish-grey, white, or yellowish, highly brittleand semi-transparent; gills adnate, broad, ventricose, connected bya network of veins, pallid or whitish ; stalk hollow, somewhat toughand rigid, smooth, same colour as pileus, and villoso-fibrillose at thebase. A. purus is extremely common in woods, hedgesides, and pas-tures from midsummer till early winter; it is a very variable butwell-marked and easily recognised species. The taste and smell arefaint and resemble radish. 2^7,. Agaricus polygrammus Bull.—Pileus conical, then campanu-late, slightly umbonate, dry and smooth, striate, with the marginfrequently toothed, fuscous grey, livid, dull yellow, or rarely shining. 20 GUIDE TO THE MODELS OF FUNGI. white; gills broad in front, adnexed, almost free, distant, white,frequently marked with foxy-red spots and blotches; stalk rigid,straight, equal, naked, hollow, longitudinally grooved, silvery greyvarying to livid and azure blue, and of shining metallic comparatively large and extremely common fungus onstumps. It appears in autumn or early wmter, and grows inclusters. Odourless. 34. Agaricus epipterygius Scop.—Pileus campanulate, at lengthmore expanded, never depressed, striate, covered with a veryglutinous separable commonly cinereous—varjnng rufescent oryellowish—pellicle; gills sinuato-decurrent, cinereous, rufescent;stalk tough, hollow, even, rooted and fibrillose at the base, glutinous,yellow varying to pallid-cinereous or whitish. This is a common, pretty, fragile, and glutinous species, in-habiting woods, where it grow


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