642 ACIA 



entire, or toothed. Flesh yellowish, white next the matrix, waxy, soft, 

 subgelatinous. Spores white, "elliptical, scarcely depressed on the 

 side, 4-6-5 x 2-3-5 ju,; basidia 9-15-20 x 3-4-5^. Hyphae thin walled, 

 1-5-3-5/x. in diam., emerging as a sterile bundle at the apex of the 

 spines, somewhat broader, 4-5-6 p in diam. and rough with prismatic 

 crystals" Bourd. & G-alz. Smell pleasant, often of anise. Dead 

 branches. Sept. April. Not uncommon, (v.v.) 



2175. A. denticulata (Pers.) Bourd. & Galz. (= Hydnum denticulatum 

 (Pers.) Fr.) Denticulata, toothed. 



R. 3-6 cm., light yellow ochraceous, then fawn colour, longitudinally 

 effused, pruinose ; margin narrow, somewhat radiating. Spines bright 

 yellow, then tawny, 2-3 mm. long, subulate, toothed and ciliated in the 

 upper half, crowded. Flesh waxy, membranaceous, thin. Spores 

 white, "oblong elliptical, slightly depressed on the side, 5-6 x 2/t; 

 basidia 12-15 x 3-4/z, accompanied by fusiform, sterile basidia, often 

 crowned by a resinous or oily globule. Hyphae thick walled, 2-3 fj. in 

 diam., forming bundles which divide and give rise to sterile emer- 

 gences along the spines and at their apex" Bourd. & Galz. Smell 

 pleasant, of anise when fresh. Rotten wood, especially alder. June 

 April. Uncommon, (v.v.) 



2176. A. stenodon (Pers.) Bourd. & Galz. 



<rTez/o9, narrow; o&wv, a tooth. 



R. 7-5-10 cm., yellowish, effused, adnate; margin white, narrow, 

 byssoid, radially fibrillose, or pubescent. Spines whitish hyaline, then 

 ochraceous, and finally tawny, 1-3 mm. long, thin, crowded, or connate 

 at the base, entire, or fimbriate and ciliate, sometimes branched. 

 Flesh waxy, fleshy, thin. Spores white, "oblong elliptical, depressed 

 on the side, 3-4-5-(6-5) x 1-5-2-75 /a, often 2-guttulate; basidia 9-14- 

 28 x 3-4(-7)/A. Hyphae thin walled, 2-3 /A in diam., prolonged into 

 a sterile point, and enlarged at the apex, 4-6/u, in diam." Bourd. & 

 Galz. Fallen branches. Jan. Dec. Type not yet recorded for Britain. 



var. nodulosa (Fr.) Bourd. & Galz. (= Hydnum nodulosum Fr.) 



Nodulosa, nodulose. 



Differs from the type in its nodulose, or tuberculose habit, and its 

 pendant, connate, often compressed, and channelled, 2-5 mm. long spines. 

 Fir, oak, ash stumps, and fallen branches. Oct. Rare, (v.v.) 



2177. A. fusco-atra (Fr.) Pat. (= Hydnum fusco-atrum Fr.; Hydnum 

 Weinmannii Fr. sec. Bres.) Fuscus, dark; atra, black. 



R. 5-15 cm., glaucous, then ferruginous fuscous, widely effused, very 

 adnate, flocculoso-pruinose ; margin white, or greyish, similar or fim- 

 briate. Spines greyish glaucous, or fawn colour, becoming brownish 

 black, apex grey for a long time, 12 mm. long, conico- subulate, acute, 

 entire. Flesh crustaceous, waxy, thin. Spores "faintly coloured, sub- 



