2. B. _rubella_
Apothecia brown to black.
Apothecia usually brown with a striate, usually
pruinose margin 3. B. _fuscorubella_
Apothecia usually black Of dark brown, without striate
and pruinose margin 4. B. _schweinitzii_

1. Bacidia egenuloidea sp. nov.

Thallus of minute, crowded granules, forming a rather thick,
conspicuous, 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; hypothecium 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 field 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. Fl. 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 finally 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. Fl. 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 finally
black, adnate or sessile, flat with an elevated, and sometimes
transversely striate, and