SOLENIA. POROTHELIUM 703 



2383. S. poriaeformis (DC.) Fr. Poria, the genus Poria; forma, shape. 

 R. 1-2 mm. high, grey, cinereous, or brownish, cup-shaped, hairy, 



sessile, crowded, seated on a greyish mycelium. Hymenium pale, 

 grey, concave. Flesh brownish, thin. Spores white, globose, pointed 

 at the base, 5-6 n, with a large central gutta ; basidia 18-24 x 5-8 /A, 

 with 2-4 conical, straight sterigmata, 5-6/A long. Hyphae hyaline, 

 1-2/x in diam., with clamp connections. Wood and bark. Oct. Un- 

 common, (v.v.) 



Porothelium Fr. 

 (Trd/309, a pore ; #77X77, a nipple.) 



Receptacles cup-shaped, sessile, more or less crowded, distinct, 

 seated on, or immersed in, a membranaceous, or floccose stroma. 

 Hymenium smooth. Spores white, oblong, elliptical, or linear oblong; 

 smooth; basidia with 2-4-sterigmata. Cystidia none. Growing on 

 wood. 



2384. P. fimbriatum (Pers.) Fr. Fr. Icon. 1. 192, fig. 1, as Porothelium 

 lacerum Fr. Fimbriatum, fringed. 



R. 1-10 cm., snow white, effused, membranaceous, firm, separable, 

 minutely tomentose, pruinose, attached to the matrix by a white, 

 cord-like mycelium; margin fringed, silky. Pores white, aggregated 

 in places, papillate, then urceolate, fringed with a pink border, pubescent. 

 Spores white, "oblong, slightly depressed on one side, 4-5-6 x 3- 

 3-5 p,, multi-guttulate; basidia 15-23 x 4-5-6 /A, with 2-4-sterigmata, 

 2-3//, long. Hyphae firm, thick walled, 1-2-5/4 in diam., with scat- 

 tered, small, often oblique clamp connections" Bourd. & Galz. Beech, 

 birch, and hornbeam stumps, and fallen branches. Jan. Dec. Un- 

 common, (v.v.) 



2385. P. Friesii Mont. Cke. Handb. fig. 69. 



Elias Fries, the illustrious mycologist. 



R. 2-7-5 cm., white, becoming tan colour, effused, confluent, flocculoso- 

 membranaceous, margin simple. Pores yellowish, papillate at first, 

 immersed, then open and urceolate. Spores hyaline, elliptical, 5 x 3/ti. 

 Pine, and juniper. Sept. Feb. Uncommon, (v.v.) 

 P. Vaillantii (Fr.) Quel. = Poria Vaillantii (DC.) Fr. 

 P. confusum B. & Br = Odontia sudans (A. & S.) Bres. 

 P. Stevensonii B. & Br. = Odontia sudans (A. & S.) Bres. 



2386. P. Keithii B. & Br. Rev. Dr James Keith, a Scotch mycologist. 

 R. 2-5-5 cm., pale umber, closely adnate, inseparable, thin, at first 



subgelatinous, forming patches; margin very thin, subpulverulent. 

 Pores pallid, scattered, papillate, at length collapsing. Spores linear- 

 oblong, 5 x 2ju,. Dead fir. April. Rare. 



