GUIDE TO THE MODELS OF FUNGI. 1 5 



as in Tricholoma; the stalk is fibrous externally, elastic, spongy- 

 stuffed, and often becomes hollow. 



All the species of Clitocybe are terrestrial, and many grow late 

 in the autumn or even after frosts in winter ; several species are 

 fragrant, some powerfully so ; a few are esculent. 



The species placed under Clitocybe must not be confounded 

 with fungi which show a similar structural character in section, as 

 Paxillus, where the spores are brownish-red ; Gomphidius, where 

 the spores are blackish ; Hygrophorns, where the spores are white, 

 but the whole substance is usually waxy-brittle or fatty; Lactarius, 

 where the spores are white, but the flesh and gills are milky; 

 Cantharelhts, where the spores are white, but the gills are thick 

 swollen, and vein-like ; or Lentinus, where the spores are white, but 

 the entire plant is leathery and not terrestrial. 



17. Agaricus inomatus Sow. — Pileus fleshy, livid, with a separ- 

 able cuticle ; flesh grey or variegated grey ; gills at first adnate, then 

 decurrent, crowded, grey ; stalk thick, solid, grey. Odour mushroom- 

 like. 



A rare inhabitant of grassy places in woods. 



18. Agaricus odonis Bull.— Pileus dull bluish-green in colour, 

 fleshy, flattened or slightly umbonate, smooth and moist in wet 

 weather ; flesh greyish-white ; gills adnato-decurrent, slightly distant, 

 the same hue as pileus, but generally somewhat duller and paler ; 

 stalk stuffed, flexuous, often short and slightly bulbous, at first 

 floccoso-fibrillose, then smooth; usually white villous at base. 



A. odorus, which is common in woods, is easily recognised by 

 its colour and fragrance. The latter has been compared with 

 melilot, anise, almonds, meadow-sweet, and new-mown hay. The 

 odour betrays the presence of the fungus in woods ; it is retained 

 for a long time in dried specimens. It is edible, but should be used 

 •with caution ; it possesses a mushroom-like taste, with a suggestion 

 of the odour of new hay. 



19. Agaricus dealbatus Sow. Ivory Caps.— Pileus shining white 

 like ivory and always dry, at first convex, then upturned, undulated 

 and irregular ; flesh white and dry ; gills white, thin, crowded, ad- 

 nate, scarcely decurrent ; the stalk is dry, whitish, fibrous, at length 

 hollow-stuffed. 



Common in woods and pastures, and on downs. 



A. dealbatus is esculent, its odour being pleasant, and the flavour 

 when cooked agreeable. It, however (like the true mushroom and 

 Boletus edulis), sometimes acts as a nerve irritant and causes profuse 

 sweating or violent diarrhoea ; for such attacks the late Dr. Bull, of 

 Hereford, recommended a glass of strong hot whisky and water. 

 It sometimes grows in profusion on mushroom beds ; it is remark- 

 able that in this position it often grows in company with A. Orcella, 



