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 usually pruinose exciple, less frequently
becoming convex with the exciple rarely becoming covered; hypothecium
yellow to yellow-brown; hymenium pale yellow; paraphyses coherent,
semi-distinct to indistinct; asci long-clavate; spores about 7- to
14-celled, 40 to 70 mic. long and 3 to 5 mic. wide.

Collected in Butler and Adams counties. Also reported from Champaign and
Hamilton counties. On bark. This fungus appears to be rare in Ohio.

In one specimen, some of the disks are partly or wholly pruinose, but
the plant seemed nearer to this than to _Bacidia suffusa_ (Fr.) Fink.


4. Bacidia schweinitzii (Tuck.) Fink Cont. Nat. Herb. 14: 89. 1910.

_Biatora schweinitzii_ Tuck. in Darl Fl. Cestr. ed. 3. 447. 1853.

Thallus thin and inconspicuous, or becoming thick and more prominent,