3§4 



HYDNACE^E 



Hydnum 



1742. H. niveum Pers. (from the snow-white colour ; nix, nivis, 



snow) a b c. 



Sub. effused, thin, membranous, lustrous, adnate ; marg. fibrilloso- 



flaxy. Sp. at first granulose, then acutely pointed, smooth. 



Dead wood, leaves, pine, birch, beech ; uncommon. Nov. - April. 

 Diam. 2.\ in. Persistent. Ochreous or sulphur-white when dry. 



1743. H. farinaeeum Pers. (from the mealy subiculum ; farina, 



meal) a b c. 



Sub. effused, indeterminate, adnate, white : marg. subflocculose. 



Sp. thin, subdistant, acute, interstices finely farinose, colour 



as Sub. 



Dead wood, fir, oak. Sept. -May. Diam. 5 in. Varying pale brownish, 

 pale yellowish, or sulphur- or ochre-white. 



1744. H. argutum Fr. (from the acute spines ; argutus, acute) a b c. 

 Sub. effused in scattered patches, tomentoso-interwoven, spongy, 



adnate, white. Sp. acute, awl-shaped, unequal, slightly serrate, 

 colour as Sub. 



Wood and bark, alder, willow. Sept. Diam. 2\ in. The hymenium has a 

 finely mossy appearance from the unequal, divergent spines. Becoming 

 colour of coffee with milk when dry. 



1745. H. stipatum Fr. (from the crowded spines; stipatus, crowded) a c. 

 Sub. widely effused, flocculoso-farinaceous, forming an adnate 



crust, white to brown-white or light yellowish. Sp. at first 



granulose then forming obtuse teeth, colour as Sub. 



Rotten wood. Dec-Jan. Diam. 3J in. Has the appearance of a resupinate 

 Polyporus. 



LXXI. TREMELLODON Fr. 



(From its resemblance to a Tremella; Gr. odous, a tooth.) 



Gelatinous, pileate, hymenium inferior, covered with acute awl- 

 shaped spines. Basidia ovate, somewhat obliquely 2-4 divided 



Fig. 86. — Tremellodon gelatinosum Fr. 



A, section, one-half natural size, b, basidia, sterigmata 



and spores. X 500. 



almost to the base, sometimes undivided for twice the length of 

 the spore, sterigmata 1-5 lengths of spore. (Fig. 86.) 



