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, composed of rounded and often crowded or even heaped granules, these frequently compacted into a continuous or scattered, verrucose and often chinky, green-gray to olivaceous crust; apothecia small to large, 0.6 to 1.75 mm. in diameter, dark brown to black, adnate or sessile, flat or slightly convex, the concolorous or lighter exciple frequently becoming flexuous; hypothecium pale yellow to dark brown; hymenium pale yellow; paraphyses coherent, distinct to semi-distinct: asci long-clavate; spores about 7- to 15-celled, 40 to 70 mic. long and 2.5 to 3.5 mic. wide.

Collected in Fairfield, Hocking, and Adams counties. On bark. Evidently a rare fungus in Ohio.

5. Bacidia inundata (Fr.) Koerb. Syst. Lich. 187. 1855.

Biatora inundata Fr. Vet. Akad. Handl. 1822: 270. 1822.