346 
OHIO BIOLOGICAL SURVEY 
On bark. 
Spores less than 40 mic. in length. .6. B. incompta 
Spores 40 to 70 mic. long. 
Apothecia flesh-yellow to red-brown.2, B. rubella 
Apothecia brown to black. 
Apothecia usually brown with a striate, usually 
pruinose margin..3. B. fuscorubella 
Apothecia usually black or dark brown, without striate 
and pruinose margin. . 4. B. schweinitzii 
1. Bacidia egenuloidea sp. nov. 
Thallus of minute, crowded granules, forming a rather thick, conspicu¬ 
ous, rugose and obscurely chinky, dirt-olive and darkening, wide-spread 
crust; apothecia minute to small, 0.25 to 0.4 mm. in diameter, yellow-brown 
and darkening, adnate-sessile, flat with an elevated, darker exciple; hypo- 
thecium and hymenium pale or tinged brown; paraphyses coherent, semi- 
distinct; asci clavate; spores hyaline obscurely several-celled, variously 
curved, 25 to 40 mic. long and 0.75 to 1.25 mic. wide. 
Collected in Preble County. On granite in a damp fleld near West 
Alexandria. The type specimen is deposited in the writer’s herbarium, and 
a cotype may be found in the State Herbarium. 
2. Bacidia rubella (Hoffm.) Mass. Ric. Lich. 118. f. 231. 1852 
Verrucaria rubella Hoffm. Deutsch. FI. 2: 174. 1795. 
Thallus of minute, scattered or crowed granules, these frequently 
becoming compacted into a subleprose or more or less verrucose or chinky, 
ash- to green-gray, moderately thick or thinner, continuous or sometimes 
scattered and disappearing crust (Fig. 2); apothecia small to large, 0.5 to 
1.35 mm. in diameter, sessile to adnate, flesh-yellow to red-brown, flat 
with a rather thick and lighter-colored exciple, or becoming convex with 
the exciple Anally covered; hypothecium pale yellow to brown; hymenium 
pale yellow; paraphyses coherent, semi-distinct to indistinct; asci long 
clavate; spores about 8- to 16-celled, 45 to 65 mic. long and 3 to 4 mic. 
wide. 
Collected in Butler, Highland, Adams, and Preble counties. Also 
examined from Franklin County. On bark. Widely distributed in Ohio, 
but not common. 
3. Bacidia fuscorubella (Hoffm.) Arn. Flora 54: 55. 1871. 
Verrucaria fuscorubella Hoffm. Deutsch. FI. 2: 175. 1795. 
Thallus of minute, crowded or scattered granules, these forming a 
usually conspicuous and often rugose and chinky, green-gray or darker, 
frequently wide-spread, rarely disappearing crust; apothecia small to large, 
0.6 to 1.5 mm. in diameter, pale to darker brown and Anally black, adnate 
or sessile, flat with an elevated, and sometimes transversely striate, and 
usually pruinose exciple, less frequently becoming convex with the exciple 
rarely becoming covered; hypothecium yellow to yellow-brown; hymenium 
