HYDNUM. 235 



squamules, slightly repand at the margin ; flesh very thick, Hydnum. 

 white, descending into the stem. Stem very curt, 2.5 cent. 

 (1 in.) long, and equally thick, round or compressed, dotted 

 with the rudiments of spines decurrent upon it, cinereous, at- 

 tenuated downwards, rounded and blackish at the base. Spines 

 8 mm. (4 lin.) long, equal, awl-shaped, fuscous- ferruginous, 

 whitish at the apex, at first sight grey-fuscous. 



Very fleshy, compact, obese. 



In pine wood. Forres, 1879. Sept. 



Name — scabrosus, rough. Fr. Hym. Eur. p. 599. Monogr. ii. p. 273. S. 

 Mycol. Scot. Supp. Scot. Nat. 1881, /. 37. Schceff. t. 271. 



** Spines changing colour, pileus even, smooth. 



4. H. lsevigatum Sw. — Pileus 10-15 cent - (4~6 in.) broad, umber, 

 fleshy, compact, firm, regular, plane, even, very smooth, margin 

 circinate (not repand); flesh whitish, compact, but by no means 

 fibrous, soft when fresh, pliant when dry. Stem short, thick, 

 even, pallid fuscous. Spines thin, pallid fuscous. 



Its size is that of H. imbricatum, but it occurs twice as large, with the 

 pileus minutely rimuloso-rivulose, by no means scaly. The stem varies curt 

 and unequal or longer and equal. Quite distinct from H. fragile. 



In pine woods. Rannoch. Aug.-Oct. 



Spores globose, verrucose, pale lemon-yellow, 7 mk. Q. Name — Icevis, 

 even. Swartz. Vet. Akad. Handl. 1810, p. 243. Fr. Hym. Eur. p. 599. 

 Monogr. ii. p. 275. Sv. atl. Sv. t. 81. A. Mycol. Scot. n. 799. 



5. H. fragile Fr. — Pileus at first pallid, soon cinereous or brick- 

 rufescent, somewhat zoned towards the margin, fleshy, fragile, 

 unequal, surface at first pubescent, then becoming smooth, com- 

 monly even but here and there minutely squamulose and pitted 

 {slightly wrinkled), margin undulated and lobed ; flesh grey, 

 somewhat zoned. Stem stout, unequal, smooth, cinereous. 

 Spines scarcely decurrent, very much elongated, slender, fragile, 

 whitish then grey. 



Very changeable. Stem sometimes short and thick, sometimes elongated. 

 Specimens occur with the stem 7.5 cent. (3 in.) long, 10 cent. (4 in.) thick, 

 and the pileus more than 30 cent. (12 in.) broad. CJuite distinct from H. 

 Icevigatum in its soft substance, in the pileus being at first pubescent, &c. 



In pine woods and among heath. Rare. Sept.-Nov. 



Name— fragili s, fragile. Fr. Hym. Eur. p. 599. Monogr. ii. p. 275. Sr. 

 atl. Sv. t. 89. />'. & Br. n. 1024, 1366. C. Hbk. n. 843. 5. Mycol. Scot. n. 

 800. Berg. Pyr. t. 16. Paul. t. 34. 



