MYCOLEPTODON. RADULUM 639 



Mycoleptodon Pat. (= Hydnum (Linn.) Fr. p.p.). 

 (/j,vtCT)<;, fungus; XCTTTO?, thin; oSwv, tooth.) 



Receptacle membranaceous-coriaceous, thin, firm, resupinate, or 

 reflexed. Spines simple, firm, cylindrical, pointed, hispid at the apex; 

 none, or reduced in size at the margin. Spores white, ovoid, oboval, 

 subelliptical, or oblong, smooth; basidia with 2-4-sterigmata. Cys- 

 tidia present, abundant at the apex of the spines. Growing on wood, 

 more rarely on humus. 



2165. M. ochraceum (Pers.) Pat. (= Hydnum ochraceum (Pers.) Fr. ; 

 Hydnum pudorinum Fr. sec. Bourd. & Galz.) Pers. Syn. t. v, 

 fig. 5, as Hydnum ochraceum. Ochraceum, ochre-yellow. 



R. 2-5-7-5 cm., white, or pale ochraceous, rounded, then confluent, 

 effused, or effuso-reflexed and dimidiate, tomentose, sometimes nar- 

 rowly grooved, zoned; margin white, membranaceous, subfimbriate, 

 pubescent. Spines ochraceous flesh colour, subulate, very small, hispid 

 at the apex, shorter at the margin. Flesh whitish, thin, coriaceous. 

 Spores white, "oboval oblong, 3-4 x 2-2-5/x, often 1-guttulate. Cys- 

 tidia claviform, or fusiform, 24-100 x 5-10/x, thick walled, or 

 incrusted" Bourd. & Galz. Dead branches. Jan. Dec. Common. 

 (v.v.) 



2166. M. fimbriatum (Pers.) Bourd. & Galz. (= Odontia fimbriata 

 (Pers.) Fr.) Fr. Icon. t. 196, fig. 1, as Odontia fimbriata (Pers.) 



Fimbriatum, fringed. 



R. 2-20 cm., fawn colour, cinnamon, or pale buff, often tinged with 

 lilac, effused, separable, veined, or traversed by root-like ribs; margin 

 fibrilloso-fringed. Spines rufescent, minute, blunt, in the form of 

 granules, crowned with hyaline hairs. Flesh membranaceous-coriaceous, 

 thin. Spores white, "ovoid, subelliptical, sometimes slightly de- 

 pressed, 3-5-4-5 x 1-75-3/i. Cystidia claviform, or fusiform, 7-9/x 

 in diam., thick walled, rugose, or incrusted, often obtuse and slightly 

 bent" Bourd. & Galz. Dead wood, and humus. Jan. Dec. Not 

 uncommon, (v.v.) 



Radulum F r. 

 (Radula, a rasp.) 



Receptacle resupinate, effused, waxy, or membranaceous waxy. 

 Tubercles or spines, thick, deformed, obtuse, simple, or branched, 

 irregularly scattered, or confluent and tooth-like. Spores white, or 

 coloured, elliptical, subglobose, or cylindric oblong, smooth. Cystidia 

 none, cystidioles (sterile basidia) sometimes present. Growing on 

 wood. 



R. pendulum Fr. = Corticium subcostatum Karst. sec. Bourd. & Galz. 



