U). B. varians, (Ach.) Tuck. On trees, common. Rarely on 
dead wood. 
20. B. flavido-livens, Tuck. On bark, mostly hemlock spruce. 
Seldom fertile. 1 have collected it also in the Katskills. 
21. B. llicida, Fr. On the shaded sides of stones in walls; com¬ 
mon. Rarely on dead rootlets, iS64. 
Parasitic. 
22. B. oxyspora, (Tul.) Tuck. On the thallus of Par media Bor- 
reri , N. B. and Weymouth. 
23 B. Papillarise, n. sp. Thallus wanting. Apoth. minute, 
yellowish flesh-colored, convex, immarginate. Hypothecium pale, 
the paraphyses conglutinate, the reaction with iodine blue. Spores 
ellipsoid, .005-10 by .002-34 mm. On podetia of Cladonia Papilla¬ 
ri a. 1876. 
24. B. CladoilisCUlli, n. sp. Thallus wanting. Apoth. blacken¬ 
ing, minute, convex, immarginate. Paraphyses closely agglutinate, 
the reaction with iodine blue. Spores ellipsoid, .009-11 bv .003-44 
mm. Parasitic on Cladonia Papilla ria. 1S74. Very rare. 
Two or three other specimens belonging to this section are too 
scanty for determination. 
• ft Spores bilocular. Biatorina. 
25. B. mixta, Fr. On trees and dead wood. 1866. 
26. B. atroi>urimrea, (Mass.) ITepp. On trees, especially hem¬ 
lock spruce. 1866. 
27. B. Lauren, Ilepp. On beech. 
28. B. gyalizella, Nyl., T'abtian <f Singapore (1891), p. 38. 
“Thallus very thin, cinerascent; apoth. dark red. minute, gvalectie- 
form. ureeolate. sessile, about 0.2 mm. in diameter. Spores about 
24. oblong-ellipsoid. 2-4 locitlar, .010-16 by .005-601111. Paraphvses 
slender, the reaction with iodine blue. On swamp huckleberrv, 1882, 
and on red maple, 1SS3." 
29. B. glillieo-lligrans, Tuck. On hemlock spruce. 1875. Wri- 
rare. 
30. B. Heern, Ilepp. (hi thallus ol Pelt igera$\ sometimes ac¬ 
companied by P veil ides. 
31. B. glohlllosa, (Flk.) Ilepp. On dead cypress. 1876. Onlv 
found once. 
