Hydnum HYDNACE.E 383 



vescicles. Brown when dry. Near Mucronella and perhaps not a true 

 Hydnum. 



1735. H. melleum B. & Br. (from the honey-colour ; md, honey) a c. 

 Sub. thin, effused, pulverulent ; marg. delicately flaxy. Sp. acute, 



minute, sometimes divided at apex with a tendency to grow in 

 groups, partially pulverulent. 

 A doubtful Hydnum. On rails on the ground. Diam. 4^ in. 



1736. H. sepultum B. & Br. (from its habitat ; sepultus, buried) a. 

 Sub. golden ; marg. white. Sp. acute to obtuse, minute to 



medium size. 

 On wood, bark and stones buried amongst pine-leaves. Sept. J to § in. diam. 

 Forming little scattered patches. Pale ochreous when dry. 



1737. H. udum Fr. (from its moist substance ; udus, moist) a b c. 

 Sub. effused, thin, subgelatinous, agglutinate to matrix, flesh- 

 colour to watery-yellowish, sometimes bright sulphur. 

 Sp. acute, 2-3 forked, small, but varying in length, crowded, 

 arranged in groups, very small near the barren marg., colour 

 as Sub. 



Dead branches, willow, oak, alder ; frequent. Sept. -April. Diam. 5J in. 

 Forming large patches. 



1738. H. bieolor A. & S. (from the white subiculum and brown 



spines ; bis, two, color, colour) a c. 

 Sub. widely effused, tomentose, adpressed, thin, white ; marg. 



broadly barren. Sp. minute, white-villous, naked at acute 



apex, pale umber to rufous-brown. 

 Bramble, fir. March. Diam. 2 in. 



1738a. H. Hollii Fr. (after F. Holl) a. 



Sub. adnate, effused, waxy membranous, whitish-brown ; marg. 



finely powdery. Sp. very minute, blunt, deformed. 

 On naked wood. Oct. 4 x i\ in. 



1739. H. nodulosum Fr. (from the nodulose subiculum) a. 



Sub. broadly effused, crustaceous, nodules (less in size than a 

 pea) sterile above, furnished with spines below, whitish to 

 pallid yellowish. Sp. free and pendulous below nodules, 

 adnate and elongate on the interstices, colour as Sub. 



Trunks, stumps, fir. Oct. Diam. 4 in. 



1740. H. Stevensonii B. & Br. (after the Rev. Dr. John Stevenson) a c. 

 Sub. effused, mealy beneath, here and there flaxy, white. 



Sp. minute, crowded, cylindrical, obtuse, pulverulent at apex, 



colour as Sub. 



Dead wood, sometimes spreading and encrusting mosses, leaves, etc. March. 

 Diam. \\ in. Having the appearance of a resupinate Polyporus. 



1741. H. plumosum Duby (from the plumose apex of the spines) a c. 

 Sub. very delicate, downy, white. Sp. very small, divided, 



colour as Sub. 



Dead wood, pine ; rare. Diam. if in. Cracking when dry and becoming 

 ivory-brown. 



