CLADODERRIS. EPITHELE. ALEURODISCTJS 671 



2277. C. minima B. & Br. Stevenson, Brit. Fung, n, p. 266, fig. 85. 



Minima, least. 



R. 4-6 mm., white, flabelliform, resupinate, springing from a stem- 

 like, or obsolete base, tomentose, somewhat zoned. Hymenium white, 

 Incoming yellowish tan, radiated on branched ribs. Flesh coriaceous, 

 firm. Spores white, "elliptic-oblong, apiculate at the base, curved, 

 14-15 x 4r-5fj," Massee. Birch. Dec. Rare. 



2. Hymenium seated directly on the mycelium. 



Epithele Pat. 



(eVi, upon; #77X77, a nipple.) 



Receptacle waxy, or floccose, resupinate, effused. Hymenium 

 smooth, interspersed with scattered, sterile protuberances, caused by 

 the breaking through of fasciculate mycelial hyphae. Spores white, 

 fusiform, smooth; basidia with 2-4-sterigmata. Cystidia none. Grow- 

 ing on dead leaves, herbaceous stems, and wood. 



2278. E. Typhae (Pers.) Pat. (= Corticium Typhae (Pers.) Fr.) Beit, 

 zur Kennt. der Cort. in Sitzungsber. der k. Akad. d. Wissensch. 

 Wien, Math.-Nat. Kl. Bd. cxv (1906), 1598, and reprint 50, 

 text-fig. 3. Typha, the Mace-reed. 



R. 1-4 cm., white, becoming yellowish, or dull buff, longitudinally 

 effused, originating as byssoid spots, then confluent, minutely tomen- 

 tose under a lens. Hymenium concolorous, smooth, then papillose, 

 and often cracked. Flesh whitish, waxy, floccose, very thin. Spores 

 white, fusiform, 20-25 x 7-8/x, 2-3-guttulate. Dead dry leaves of 

 Typha, and Carex. Oct. Nov. Uncommon, (v.v.) 



Aleurodiscus Rabenh. 



(akevpov, flour, starch ; Stoveo?, a round plate.) 

 Receptacle waxy floccose, or crustaceous, becoming coriaceous; 

 resupinate, saucer-shaped with a free margin, or effused and adnate. 

 Hymenium smooth, pulverulent, often containing much granular, or 

 crystalline matter. Spores white, large, ovoid, elliptical, or sub- 

 globose; smooth, or echinulate; basidia large with 4 stout sterigmata, 

 intermixed with torulose, moniliform, or racemose paraphyses, or 

 sterile basidia. Growing on wood. 



I. Discoid, cup-shaped, pezizaeform. 

 *Spores smooth. 



2279. A. discifonnis (DC.) Pat. (= Stereum disciforme (DC.) Fr.) 



Sia-tcos, a quoit ; forma, shape. 



R. 1-2-5 cm., white, or tan colour, resupinate, disciform; margin 

 white, free, narrow. Hymenium white, becoming greyish, rigid, un- 

 even, pulverulent. Flesh i concolorous, subconaceons, hard, firm. Spores 

 white, "ovoid, or subglobose, 16-22 x 12-16/A, membrane coloured 



