ACIA. GRANDINIA 643 



elliptical, scarcely depressed on the side, 4-5-6 x 2-3 /LI; basidia 12- 

 24 x 3-5-4-5 ^i, accompanied at the apex of the spines, with fusiform 

 sterile basidia, slightly projecting. Hyphae thin walled, or slightly 

 thickened, 3 4 fj, in diam., with rare clamp connections" Bourd. & 

 Galz. Fallen branches of ash. Nov. March. Uncommon, (v.v.) 



2178. A. membranacea (Fr.) Bourd. & Galz. (= Hydnum membrana- 

 ceum Fr. non Bull.) Membranacea, membranaceous. 



R. 37 cm., tawny ferruginous, becoming livid and finally brown, 

 effused, very adnate, smooth; margin similar, attenuate. Spines con- 

 colorous, 1-2 mm. long, subulate, thin, crowded, acute. Flesh waxy 

 membranaceous, thin. Spores white, "oblong subcylindrical, scarcely 

 depressed on the side, 4-5-5 x 2-2-75/x,; basidia 9-24 x 3-5-4-5/x, 

 accompanied by subulate sterile basidia, slightly projecting. Hyphae 

 thin walled, 2-5-4ju, in diam." Bourd. & Galz. Fallen branches of elm, 

 and oak. Sept. Jan. Uncommon, (v.v.) 



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



(Grando, hail.) 



Receptacle resupinate, effused, membranaceous, or crustaceous. 

 Tubercles or spines hemispherical, obtuse, or subulate and entire. 

 Spores white, or yellowish, ovoid, elliptical, globose, subglobose, 

 obovate, or oblong; smooth, punctate, verrucose, or echinulate; 

 basidia with 2-8-sterigmata accompanied, or not, with sterile basidia 

 (cystidioles). Cystidia none. Growing on wood. 



*Spores subglobose. 

 fSpores echinulate. 



2179. G. farinacea (Pers.) Bourd. & Galz. (= Hydnum farinaceum 

 (Pers.) Fr.; Hydnum niveum (Pers.) Fr.) Farinacea, mealy. 



R. 213 cm., snow white, then cream, or tan, widely effused, inde- 

 terminate, closely adnate, mealy; margin byssoid, minutely fibrillose, 

 or pruinose. Spines white, 1-2 mm. long, generally crowded, subulate, 

 rarely dentate, sometimes confluent and crested, or granular, very 

 soft, fragile. Flesh white, thin, floccose, or membranaceous, con- 

 taining oxalate crystals. Spores white, minutely echinulate, ovoid, 

 or globose, 3-4/*; basidia 6-12-21 x 3-5 /x, with 2-4-sterigmata, 3- 

 4-5/M long. Hyphae very thin walled, with clamp connections and 

 swollen at the septa. Dead wood, branches, sticks, and leaves. Jan. 

 Dec. Common, (v.v.) 



ffSpores smooth, rarely punctate, or rough. 



2180. G. helvetica (Pers.) Fr. Helvetica, Swiss. 

 R. 2-5 cm., pale yellowish to deep ochraceous when fresh, drying 



alutaceous, or sometimes with a faint greyish tinge, effused, separable, 



412 



