• THE ASCOMYCETES OF OHIO IV 
349 
Collected in Butler and Lake counties. On dead Vv^ood, especially posts 
and boards. Also reported from Cuyahoga County. An inconspicuous 
fungus, doubtless distributed widely in the State. 
2. Buellia parasema (Ach.) Koerb. Syst. Lich. 228. 1855. 
Lichen parasemus Ach. Lich. Suec. 64. 1798. 
Thallus usually continuous and smooth, but sometimes becoming 
thicker and roughened, granulate, chinky, or finally areolate, ash- to 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 prom¬ 
inent, 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 coun¬ 
ties. 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, im.mersed 
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 deposited in the writer’s herbarium, and a cotype may be found 
in the State Herbarium. 
This species is a coarser plant than Buellia turgescens (Nyl.) Tuck., 
with much stronger, darker thallus and apothecia on the whole larger. 
Rhizocarpon Ram. in Lam. & DC. FI. Fr. ed. 3. 2: 365. 1805. 
Thallus usually verrucose, areolate or subareolate, tending toward 
squamulose conditions, better developed than in other members of the 
family, scarcely ever showing granulate conditions, and never disappearing 
entirely; apothecia also larger than in the other genera, adnate to immersed, 
usually black, but rarely white-pruinose; hypothecium usually dark brown; 
hymenium pale to light brown; spores 4-celled to muriform, and pale to 
brown, various conditions of septation and coloration sometimes appearing 
in the same hymenium. 
