74 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Distributed throughout the northern portion of the State. On rocks. 
Previously reported from arctic America. Known also in Europe and New Zealand. 
12. Lecidea uliginosa (Schrad.) Ach. Meth. Lich. 43. 1803. 
Lichen uliginosus Schrad. Spic. Fl. Germ. 88. 1794. 
Thallus composed of scattered, clustered or even more or less heaped, irregular and 
very minute, greenish-olivaceous to rusty brown or even blackish, somewhat raised 
granules, these forming a widely scattered, frequently subleprose, subcontinuous or 
scattered crust; apothecia small or minute, 0.2 to 0.35 mm. in diameter, closely 
appressed or rarely more or less immersed, often clustered, brown or brownish black, 
the disk flat or rarely somewhat convex, the exciple thin, raised and lighter-colored, 
but becoming black and disappearing; hypothecium light or darker brown; hyme- 
nium yellowish or brownish; paraphyses simple or branched, slender, usually enlarged 
and brownish toward the apex; asci long-clavate; spores ovoid-ellipsoid, 8 to 15 y: 
long and 4.5 to 8 » wide. 
Distributed throughout the northern portion of the State and also collected as far 
south as Mankato and New Ulm. On earth and old wood. 
Widely distributed in North America. Known also in Europe and Asia. 
Biatora uliginosa of the preliminary reports. 
12a. Lecidea uliginosa fuliginea (Ach.) Leight. Lich. Fl, Great Brit. ed. 3.274. 1879. 
Lecidea fuliginea Ach. Syn. Lich. 35. 1814, 
Thallus on the whole rather less developed and the apothecia smaller; spores 6 to 
9 long and 3.5 to 5 » wide. The species is quite variable, and some half dozen sub- 
species are recognized in Europe.¢ 
Collected once in the State, at Beaudette. On an old Polyporus. Listed in the 
seventh preliminary report as a distinct species. 
Not found reported from other portions of the Western Hemisphere, though no doubt 
to be looked for with the species. Well known in Europe and found also in Asia. 
13. Lecidea myriocarpoides Nyl. Flora 48: 355. 1865. 
Thallus composed of minute, irregular, and somewhat flattened or more rarely hemi- 
spherical, olivaceous-brown granules, 1.5 to 3 mm. in diameter, forming a continuous, 
usually rather thin, subleprose or rarely even subareolate, widespread crust, this 
liable to become scattered or obsolete; apothecia small or minute, 0.15 to 0.4 mm. in 
diameter, adnate, dark brown to black, flat or becoming convex and turgid, and the 
thin black exciple disappearing; hypothecium brown or blackish brown; hymenium 
pale, brownish or bluish; paraphyses somewhat gelatinized, simple or rather rarely 
branched, sometimes enlarged and darker toward the apex; asci clavate; spores ellip- 
soid, 6 to 9 » long and 2.5 to 4 « wide. 
Generally distributed over the State. On dead wood, especially fences, and also 
on rocks. Dr. T. Hedlund has referred our rock specimens to Lecidea sylvicola Flot. 
but ours are all alike so far as we can determine. Possibly the older name should 
be adopted, but we await further studies. 
From Minnesota and Iowa eastward throughout the eastern United States. Known 
also in Europe. 
Biatora myriocar poides of the preliminary reports. 
a(Cf. Hedlund, Bih. Svensk. Vet. Akad. Handl. II 18™?: 72. 1892. 
6 Lich. Sil. Exsicc. no. 171. 1829. Cf. Koerb. Syst. Lich. 254. 1855. 
