. Guide to Sowerby's models of British fungi in the Department of Botany, British Museum (Natural History) . Fig. 4J.—Marasmius ?le-half natui:il 114. Marasmius rotula Fr.—Pileus whitish, or with a smallbrownish umbiiuus, tiK nibranaceous, dry, convex, ])licatc at margin ;gills few, distant, wiiite; stalk horny, hollow, equal, shining deepbrown or blackish, stri^ite when dry. M. rotnla is frequent; it is small in size and grows gregariouslyon dead twigs in woods and by hedgcsides ; it may be known bythe peculiar attachment of tlie gills to a collar which encircles, butdoes not t(nich, tlie top
. Guide to Sowerby's models of British fungi in the Department of Botany, British Museum (Natural History) . Fig. 4J.—Marasmius ?le-half natui:il 114. Marasmius rotula Fr.—Pileus whitish, or with a smallbrownish umbiiuus, tiK nibranaceous, dry, convex, ])licatc at margin ;gills few, distant, wiiite; stalk horny, hollow, equal, shining deepbrown or blackish, stri^ite when dry. M. rotnla is frequent; it is small in size and grows gregariouslyon dead twigs in woods and by hedgcsides ; it may be known bythe peculiar attachment of tlie gills to a collar which encircles, butdoes not t(nich, tlie top of the stem. GUIDE TO THE MODELS OF FUNGI. f,l GENUS XII.—LENTINUS Fr. In Lentinus the species are distinctly cartilaginous-leathery,generally irregular in growth, with the gills minutely toothed ortorn at the edge, sometimes requiring alens to detect the serration. The Britishspecies grow on stumps and trunks, and,though not brightly coloured plants, areattractive and often beautiful. There areeleven British species of Lentinus, onlyone of which is represented by a 115. Lentinus tigrinus Fr.—Pileuscreamy-whitish, variegated with blackish,hairy squamules, fleshy-leathery, thin,convexo-plane, umbilicate, at length in-fundibuliform, often split at the marginwhen dry; gills decurrent, narrow, crowded, pi^. 4,._Lentinus cochieatus Fr. unequal, toothed, white ; stalk thin, solid, (One-quarter natural size.) hard, attenuated downwards, squamulose, creamy-white, fuscous atthe base, furnished at the apex with an entire, reflexed, fugaciousring. L. tigrimis is rare and grows upon stumps, old trunks, andbranches in a gregarious or caespitose manner. Acrid, odour strong. ORDER II.—POLYPORE^. In the PoJyporece the under surface of the pileus is covered withsmall, closely packed tubes. The tubes are lined with cells namedbasidia, bearing spores in groups of four in the same manner as inthe Agaricincce (see fig. i, page 7). The species are fleshy, leathery,or woody. There
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