crust; apothecia minute to small, 0.2 to 0.4 mm. in diameter, closely
adnate or more or less immersed, often clustered, brown to black-brown,
flat with the thin lighter-colored or black exciple visible, or becoming
strongly convex, with the exciple finally covered; hypothecium light or
darker brown; hymenium tinged yellow or brown; paraphyses closely
coherent, but usually remaining distinct; asci long-clavate; spores
oblong-ellipsoid, 8 to 14 mic. long and 4 to 7 mic. wide.

Collected in Preble, Butler, Warren, Adams, Fairfield, and Lake
counties. On dead wood. Widely distributed in Ohio.


8. Lecidea sylvicola Koerb. Syst. Lich. 254. 1855.

Thallus of minute, irregular, somewhat flattened or more rarely
hemispherical, green-gray, olive-brown, or darker granules, these
forming a thin, continuous, or rarely scattered, subleprose, verrucose,
or even subareolate, wide-spread crust; apothecia minute to small, 0.2
to 0.5 mm. in diameter, adnate or rarely more or less immersed, dark
brown to black, flat to convex, the black exciple soon becoming covered;
hypothecium brown to black-brown; hymenium pale or tinged brown;
paraphyses coherent, semi-distinct to indistinct; asci clavate; spores
ellipsoid, 5 to 9 mic. long and 2.5 to 4 mic. wide.

Collected in Lake, Ross, Preble, Hocking, and Butler counties. On
various rocks. Not previously reported from Ohio, and apparently new to
America under this name. Widely distributed in Ohio.

For possible relationship to _Lecidea myriocarpoides_ Nyl. See "The
Lichens of Minnesota" (Cont. Nat. Herb. 14: 74. 1910).