344 
OHIO BIOLOGICAL SURVEY 
2. Bilimbia hypnophila (Ach.) Th. Fr. Nov. Act. Reg. Soc. Sci. Ups. 
III. 3; 283. 1861. 
Lecidea hypnophila Ach. Lich. Univ. 199. 1810. 
Thallus of minute, usually crowded, sometimes confluent granules, 
these forming an ash- or green-gray, thin, leprose or subgranulose, some¬ 
times scattered and disappearing crust; apothecia minute to middle-sized, 
0.2 to 0.75 mm. in diameter, light brown to black, adnate to sessile, scat¬ 
tered or clustered, becoming strongly convex and the exciple becoming 
covered; hypothecium pale or darker brown; hymenium pale, or tinged 
brown below and more plainly brown above; paraphyses coherent, semi- 
distinct to indistinct; asci clavate or long-clavate; spores ellipsoid to fusi¬ 
form, 4- to 8-celled, 16 to 35 mic. long and 4 to 8 mic. wide. 
Collected in Preble, Hocking, and Adams counties. Over mosses on 
rocks or bases of trees; or rarely on rocks, soil, bark, or wood. Not pre¬ 
viously reported from Ohio, and not a common fungus in the State. 
3. Bilimbia naegelii (Hepp) Zwackh. Flora. 45: 505. 1862. 
Biatora naegelii Hepp, Spor. Flecht. Fur. pi. 4. f. 1. 19. 1853. 
Thallus of usually flattened granules, these commonly running together 
to form a moderately thin, more or less roughened, often chinky, ash- or 
green-gray, or darkening, limited or rarely wide-spread crust; apothecia 
minute to middle-sized, 0.2 to 0.9 mm. in diameter, adnate or rarely sessile, 
flesh-colored to dark brown, scattered or clustered, flat with the thin exciple 
visible to strongly convex with the exciple covered; hypothecium pale or 
tinged brown; hymenium pale throughout or tinged brown above; para¬ 
physes coherent, semi-distinct to indistinct; asci clavate; spores fusiform- 
ellipsoid, 4- to 8-celled, 18 to 25 mic. long and 3 to 4 mic. wide. 
Collected in Highland County. On bark. Not previously reported 
from Ohio, and doubtless rare in the State. 
The usual width given for the spores is 4 to 6 mic., and our plant is 
placed here provisionally. 
4. Bilimbia melaena (Nyl.) Th. Fr. Lich. Scand. 383-385. 1871. 
Lecidea melaena Nyl. Bot. Not. 1853: 182. 1853. 
Thallus of minute, olive-green to black-brown granules, these forming 
a thin, granulose or scurfy, sometimes disappearing crust; apothecia minute 
to small, 0.25 to 0.55 mm. in diameter, black-brown to black, sessile, occur¬ 
ring singly or in clusters, strongly convex to subglobose, the exciple soon 
covered; hypothecium pale brown to red-brown; hymenium pale or tinged 
brown; paraphyses coherent, semi-distinct' to indistinct; asci clavate to in- 
flated-clavate; spores oblong-ellipsoid or dactyloid, 2- to 4-celled, 12 to 22 
mic. long and 4 to 6 mic. wide. 
Collected in Lake County. On an old log in a wood. Not previously 
reported in Ohio, and rare in the State. 
