732 TREMELLA 



2496. T. moriformis Berk. (= Tremella nigrescens (Fr.) Quel.) Engl. 

 Bot. t. 2446. Morus, mulberry ; forma, shape. 



R. 1-2-5 cm., mulberry black, erumpent, spherical, sinuous. Flesh 

 deep violet, translucent, subgelatinous, firm. Spores "subglobose, 

 apiculate, 5 x 4ju," Massee. Stains paper violet, and gives a purple 

 colour when treated with potash. Dead branches of maple, chestnut, 

 Robinia, elm, and plane. June Feb. Rare. 



2497. T. tubercularia Berk. Tuberculum, a tubercle. 

 R. 48 mm. high, dingy white, nearly black when dry, erumpent, 



stipitate, headpileate. St. short, round. Flesh semi-transparent, horny. 

 Spores " subglobose, with a large, obtuse, lateral apiculus, 5-7 x 5-8/t" 

 Bourd. & Maire. Conidia straight, or slightly curved, 2 x -5/x. Fallen 

 branches, especially oak. Oct. Dec. Frequent, (v.v.) 

 T. torta Berk. = Dacryomyces tortus (Berk.) Massee. 



2498. T. versicolor Berk. Versicolor, changeable in colour. 

 R. 2-3 mm., orange, at length brown, orbicular, tear-like, convex. 



Flesh gelatinous, firm. Spores white, "broadly elliptical, apiculate, 

 6 x 4/Lt" Massee. Peniophora nuda, ash, and briar. Feb. May. Un- 



2499. T. atrovirens Fr. Ater, black; wrens, green. 

 R. 1-6 mm., sooty green when moist, blackish when dry, erumpent, 



pulvinate, gregarious, minutely papillate and rugose. Spores white, 

 "elliptical, 10-12 x 7-9 p; basidia 21-25 x 8-15/>t. Hyphae 1-2 /u, in 

 diam." Bourd. & Galz. Dead broom branches. Oct. Rare. 



2500. T. clavata (Pers.) Berk. (? = the conidial form of Coryne sar- 

 coides (Jacq.) Tul.) Pers. Icon. Pict. t. 10, fig. 2. 



Clavata, club-shaped. 



R. 2-5 cm. high, 4 mm. broad, reddish flesh colour, becoming black 

 at the base, club-shaped, solitary, simple, slightly twisted. Stumps. 

 Rare. 



T. sarcoides Sm. = Coryne sarcoides (Jacq.) Tul. 

 T.foliicola Fuck. ? = Hypocrea rufa (Pers.) Fr. sec. W. G. Sm. 



V. With a firm, hard nucleus. 



2501. T. encephala (Willd.) Quel. (= Naematelia encephala (Willd.) 

 Fr.) Willd. Bot. Mag. I, t. 4, fig. 14, as Tremella encephala 

 Willd. eV, in; e$a\7, head. 



R. 1-3 cm., pallid flesh colour, pulvinate, subsessile, diaphanous, 

 plicato-rugose, white pruinose, rooting. Nucleus white, large, hard. 



