Exciple persistent 9. L. _flexuosa_
Exciple horny, dark colored.
Disk usually convex, commonly on wood 10. L. _enteroleuca_
Disk flat or less commonly convex, on rocks.
Disk usually white- to rusty-green-pruinose 11. L. _albocaerulescens_
Disk black, scarcely pruinose 12. L. _platycarpa_


1. Lecidea coarctata (J.E. Smith) Nyl. Act. Soc. Linn. Bord. 21: 358.
1856.

_Lichen coarctatus_ J.E. Smith in Sowerby, Eng. Bot. 8: pl. 534. 1789.

Thallus of minute, scattered or clustered, rounded, angular, or minutely
and irregularly crenate, green-gray, pale brown, or more commonly
ash-white granules, sometimes passing into a subcontinuous, chinky or
areolate crust; apothecia minute to small, 0.2 to 0.4 mm. in diameter,
adnate, from flesh-colored to black, commonly concave or flat, sometimes
difform, frequently surrounded laterally by a thalloid veil; hypothecium
and hymenium pale to pale brown; paraphyses distinct; asci clavate or
cylindrico-clavate; spores ovoid to ellipsoid, 13 to 23 mic. long and 7
to 10 mic. wide.

Collected in Lake, Ross, Hocking, and Preble counties. Also examined
from Lawrence County. On rocks and old bricks. Not previously reported
from Ohio. Widely distributed in the State, but rare, except in Lake
County, where this fungus was unusually common.


2. Lecidea intropallida sp. nov.