DERMINI. 285 



when shorter, somewhat flexuous, smooth, naked, darker and/?/j- Naucoria. 

 cous at the base. Gills adnate, crowded, plane, sometimes linear, 

 sometimes ovate, at length bay-brown-cinnamon. 



Casspitose. When fresh wholly bay-brown-fuscous, but hygrophanous. 

 Veil commonly none, but a woven veil appendiculate to the margin of the 

 pileus has been observed. Habit of A. cucumis. 



Among short grass. Kew Gardens. 



Name tabacum ; of the colour of tobacco. Dec. Fl. fr. 5. p. 46? Fr. 

 Monogr. i. p. 377. Hym. Eur. p. 261. C. lllust. PL 493. b. 



** Scorpioidei, growing in moist, uncultivated, wooded places. 



640. A. tenax Fr. Pileus scarcely reaching 2.5 cent, (i in.) 

 broad, varying between cinnamon and an olivaceous or somewhat 

 fuscous yellowish, dirty, becoming pale when dry, somewhat fleshy, 

 but thin, so that the gills at length shine through, hemispherical 

 then expanded, obtusely umbonate, smooth, even, viscid especially 

 when young. Stem 7.5 cent. (3 in.) long, 2 mm. (i lin.) thick, 

 stuffed then hollow, equal, round, adpressedly and becoming even- 

 fibrillose, so that at first sight it seems slightly striate and smooth, 

 dingy pallid (light yellowish) then becoming fuscous or becoming 

 olive. Gills adnate, afterwards somewhat rounded and somewhat 

 separating, broad, plane, almost distant, sometimes triangular, 

 sometimes oblong, whitish-fuscous, becoming ferruginous, whitish 

 and quite entire at the edge. 



Veil in the form of a cortina, fugacious. Pileus sometimes slightly wrinkled. 

 Readily distinguished from A. myosotis by the hygrophanous colour, &c. 



In a ditch among sticks. Welford, Norths., 1868, &c. Oct. 



Spores ovate, even, B. <yr. ,-5x4 mk. W.P. Name tenax, tough. 

 Fr. Monogr. i. p. 378. Hym. Eur. p. 261. B. & Br. n. 1248, 1872. 



641. A. myosotis Fr. Pileus about 2.5 cent, (i in.) broad, oli- 

 vaceous or fuscous-green then becoming pale, becoming light yel- 

 low, disc darker, fleshy, convex then plane, somewhat umbonate 

 when flattened, even, smooth, with a viscous pellicle; flesh thin, 

 pallid. Stem 7.5-15 cent. (3-6 in.) long, 2-6 mm. (1-3 lin.) thick, 

 fistulose, slightly firm, equal, often flexuous, sometimes fibrillose 

 (the fibrils here and there blackish), sometimes scaly, pallid then 

 becoming fuscous, white-pruinose at the apex. Cortina manifest, 

 but fugacious, fringing the margin. Gills adnate, decurrent 

 with a tooth, somewhat distant, broad, pallid umber-olivaceous 

 then at length brown-ferruginous, serrated and whitish at the edge. 



The colours are very peculiar. Very distinguished and easily recognised, but 

 there are many forms departing from the type. 



