green-gray, and darkening, or even yellow-green, usually bordered wholly
or in part by a black margin; apothecia small to large, 0.4 to 1.3 mm.
in diameter, black, adnate to sessile, or rarely more or less immersed,
flat with a prominent, concolorous, sometimes flexuous exciple, or
sometimes becoming convex, with the exciple often covered (Fig. 11);
hypothecium dark brown; hymenium pale below and pale brown above;
paraphyses distinct (Fig. 12), but sometimes loosely coherent; asci
clavate (Fig. 13), or rarely inflated clavate; spores oblong to
ellipsoid, 10 to 18 mic. long and 5 to 9 mic. wide, rarely 3-celled
(Fig. 13).

Collected in Fairfield, Lake, Adams, Highland, Hocking, and Butler
counties. Also examined from Morgan, Madison, and Muskingum counties. On
bark. Generally distributed in Ohio.


3. Buellia turgescentoides sp. nov.

Thallus a thick, continuous or scattered, flat or verrucose, areolate or
subareolate, dull olive-brown, and darkening crust, covering small areas
or spreading widely over the substratum, the marginal areoles sometimes
lobulate; apothecia minute to small, 0.2 to 0.5 mm. in diameter,
immersed to adnate, scattered or clustered, black, flat with the thin
concolorous exciple visible, or convex with the exciple covered;
hypothecium pale or darker brown; hymenium pale; paraphyses stout,
distinct, but often loosely coherent; asci clavate or inflated-clavate;
spores brown, 2-celled, oblong to oblong-ellipsoid, 8 to 13 mic. long,
and 4 to 6 mic. wide, 8 in each ascus.

Collected in Lake County. On exposed igneous rocks. The type specimen is