Sporangia globose or ellipsoid, .7–1 mm., pale iridescent, stipitate; peridium thin with slight calcareous deposits, rugulose, opening irregularly, white; stipe long flaccid, straw-colored; capillitium an elegant uniform net, its threads stiffened by slight deposits of lime, the nodes little thickened, badhamioid; spores free, dusky with a shade of violet, minutely spinulose, about 10 µ.

This beautiful species closely resembles some forms of B. utricularis from which it differs chiefly in its unclustered smooth spores. B. foliicola as recognized here is hardly more than a smaller, short-stemmed form of this; see species next following.

Not rare in the eastern United States and Canada; Iowa. Seems to take the place of B. capsulifera of Europe.

10. Badhamia foliicola Lister.

"Plasmodium orange." Sporangia smaller, about .5–.6 mm., globose or ellipsoidal, iridescent-gray, stipitate or sessile, the peridium thin, rugulose, sparingly calcareous, when empty white; the stipe when present short but yellowish, of the flaccid sort; capillitium badhamioid; spores free, delicately spinulescent, dusky-violaceous, about 12–13 µ.

This has been so far collected but once, on the shores of Lake Okoboji. It was developed, no doubt, on the natural débris of a bur-oak prairie border, and went to fruit on the leaves, stems, and fruiting spikes of a species of Setaria. It may prove to be different from the B. foliicola of Europe; future collections and study must reveal that. Meantime it seems wise to refer it here.

The color of the plasmodium is quoted from Miss Lister; a fact of some importance only when constant and confirmed by other criteria.

Iowa; Toronto,—Miss Currie.