340 Transactions. — Botany. 



110. Amanita 7nappa, Fries., Epicr, p. 4 (1836j ; Sacc, 

 Syll. v., no. 8 ; Cke., Habk. Austr. Fung., p. 2. 



Pileus 6-10 cm. across, rather fleshy, convex, then ahnost 

 plane, dry, pale-yellow, sometimes whitish or with a tinge of 

 green, with a few irregular patches of the volva adhering ; 

 gills slightly_ adnexed, rather narrow, crowded, white ; stem 

 5-8 cm. long, smooth, white, equal, globosely bulbous at the 

 base; ring superior, soft, usually more or less torn; volva 

 splitting in a circumscissile manner, connate with the base 

 of the stem, free margin narrow; spores subglobose, 7-9 /x 

 diameter. 



On the ground. North Island. Europe, North America. 



Smell strong, colour variable. A very poisonous fungus. 

 Allied to Amanitn. phalloides ; differing in the shorter equal 

 stem and narrow free margin of the volva. 



31. Xerotus, Fries. 



Pileus dry, tough, thin ; gills slightly decurrent, coriaceous, 

 narrow, often forked, margin entire, rather blunt or 

 thickened ; stem central or excentric ; spores white. 



Xerotus, Fries, Epicr., p. 48. 



Eesembling Cantharellus in the thick margin of the gills, 

 but differing in the thin tough or coriaceous consistence of 

 every part of the fungus. Most of the species become blackish 

 when dried. Growing on wood, twigs, &c. 



111. Xerotus glaucophyllus, Cke. and Massee, Grev., vol. xx., 

 p. 120; Sacc, Syll., suppl. xi., no. 269. 



Pileus sessile, very thin, horizontal, fan-shaped or irregu- 

 larly circular in outline, margin sometimes slightly lobed, 

 attaciied laterally, glabrous, more or less fluted, extreme edge 

 often upturned, dusky (when dry), l-5-2-5cm. across; gills 

 few, distant, broad, with shorter intermediate ones radiating 

 from the point of attachment, pale brick-red, then becoming 

 glaucous with the white globose spores, which are about 6 /a 

 diameter. 



On slender twigs. New Zealtind. 



Distinguished by the broad gills and the extreme margin 

 of the pileus upturned, at least when dry. The species of 

 Xerotus are remarkable for becoming dingy in colour and, in 

 many instances, black when dry. 



111a. Xerotus drummondi, Berk., MS. ; Austr. Fung., p. 100. 

 Gregarious. Pileus horizontal, laterally attached by a 

 thickened stem-like point but sessile, reniform, or almost 

 circular, very thin, flexible when dry, glabrous or minutely 

 cracked under a lens, rust-colour or dark-red, almost even. 



