THE ASCOMYCETES OF OHIO IV 
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ing crust; apothecia small to large, 0.4 to 1.3 mm. in diameter, at first im¬ 
mersed but becoming adnate, yellow to yellow or red-brown, flat to strongly 
convex and the exciple covered; hypothecium pale or pale yellow; hyme- 
nium pale; paraphyses coherent, semi-distinct to indistinct; asci clavate; 
spores ellipsoid, 10 to 15 mic. long and 5 to 7 mic. wide. 
Collected in Adams Country. On calcareous rocks. Not previously 
reported from North America. 
5. Lecidea viridescens (Schrad.) Ach. Meth. Lich. 62. 1903. 
Lichen viridescens Schrad. Spic. Fi. Germ. 88. 1794. 
Thallus of very minute, smooth or delequescent and powdery, ash- 
grey to grey-green granules, spread over the substratum as a thin or rarely 
thicker crust; apothecia minute to small, 0.2 to 0.5 mm. in diameter, 
adnate, frequently clustered or even conglomerate, becoming black, from 
flat with the thin livid or darker exciple visible to convex with the exciple 
covered; hypothecium pale or darker brown; hymenium pale to pale 
brown; paraphyses coherent, semi-distinct to indistinct; asci clavate; spores 
oblong-ellipsoid, 9 to 12 mic. long and 4 to 5.5 mic. wide. 
Collected on Little Mountain in Lake County, and in Hocking County. 
On logs in woods. Not previously reported from Ohio, and probably rare 
in the State. 
6. Lecidea humicola (Ach.) comb. nov. 
Lecidea uliginosa humicola Ach. Meth. Lich. 43. 1903. 
Thallus of very minute inconspicuous and evanescent, brown-black 
granules; apothecia minute, 0.2 to 0.4 mm. in diameter, adnate, dark brown 
to black, scattered or clustered, plain with a thin concolorous exciple vis¬ 
ible, to convex with the exciple finally covered; hypothecium dark brown; 
hym.enium pale brown; asci clavate; paraphyses coherent-indistinct; spores 
oblong-ellipsoid, 9 to 15 mic. long and 5 to 7 mic. wide. 
Collected in Hocking County. On soil in a moist wood. Not pre¬ 
viously reported from North America. 
7. Lecidea uliginosa (Schrad.) Ach. Meth. Lich. 43. 1803. 
Lichen uliginosus Schrad. Spic. FI. Germ. 88. 1794. 
Thallus of scattered, clustered, or even heaped, irregular and minute, 
green-olive to rust-brown, or even brown-black, somewhat raised and rarely 
coralloid granules, these forming a scattered or continuous 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. 
