736 EXIDIA. TREMELLODON. PROTODONTIA 



effused, tubercular, gyroso-undulated, sprinkled with a few minute, 

 obtuse, vanishing papillae. Flesh thick. Spores white, "cylindrical, 

 curved, 12-18 x 4-5-6 /A; basidia ovoid, 15-22 x 9-12/A. Hyphae 1-3 p 

 in diam., with clamp connections" Bourd. & Galz. Coniferous trunks, 

 and branches. Nov. Uncommon. 



var. foliacea (Bref.) Bres. (= Ulocolla foliacea Bref.) Bref. Unters. 

 Heft vn, t. vi, fig. 2. Foliacea, leafy. 



Differs from the type in its larger size, and lobes. Coniferous trunks, 

 and branches. Nov. Uncommon. 



Tremellodon Pers. 

 (Tremo, I tremble; oScov, a tooth.) 



Eeceptacle gelatinous, soft, dimidiate, or spathulate, substipitate, 

 or sessile. Hymenium covering fertile spines or teeth. Basidia glo- 

 bose, or ovoid, longitudinally cruciately septate. Spores white, sub- 

 globose, smooth, producing a mycelium on germination. Growing on 

 wood. 



2514. T. gelatinosum (Scop.) Pers. Boud. Icon. t. 178. 



Gelatinosum, jelly-like. 



R. 3-6 cm., glaucous fuscous, or tawny brownish, dimidiate, spathu- 

 late, or fan-shaped, rounded in front, attenuated behind, sessile or 

 substipitate, surface papillose. Spines white, or glaucous, 2-4 mm. 

 long, conical, straight, gelatinous. Flesh hyaline, gelatinous, trans- 

 parent, thick. Spores white, subglobose, 4 7/u,, multi-guttulate ; 

 basidia globose, longitudinally septate, 14-18 x 10-12/A, with 2-4- 

 sterigmata. Edible. Coniferous stumps and on the ground. Sept. 

 Dec. Not uncommon, (v.v.) 



Protodontia von Hoehn. 

 (Trpcoro?, first; 0801)5, a tooth.) 



Like the genus Odontia in appearance, but possessing vertically 

 septate basidia. Growing on wood. 



2515. P. uda von Hoehn. Trans. Brit. Myc. Soc. vi, p. 69, text-figs. 



Uda, moist. 



R. 1-2 cm., pure white and slightly hyaline when fresh, yellowish 

 when dry, effused, indeterminate, very soft and delicate. Spines 

 hyaline, then yellowish and collapsing, slender, acute up to 400 /n long, 

 100-150/M wide at the base. Flesh very thin, sometimes almost 

 wanting, white and mealy when dry. Spores white, elliptical, one 

 side flattened, 6-8(-9) x 3-4 ju,; basidia globose, immersed, vertically 

 septate, 7-8/x in diam., with 2-4-sterigmata, 8-10 x 1-5/n. Hyphae 

 very fine and closely adherent. Very soft, rotten wood. Dec. Rare. 



