Rare. New York, Ohio, Kansas; more recently reported from Scotland and Japan.
There is nothing new to be added here; nor appears any other place to which such material as we have may be referred. New collections no doubt will one day appear, when the identity may, let us hope, be made secure.
Meantime we have a form closely related which may be entered as
Badhamia iowensis Macbr. n. s.
Sporangia gregarious or loosely scattered, depressed globose, .4–.6 mm. in diameter, stipitate, grey, flecked by rather prominent but small rounded calcareous scales: the stipe short, half the diameter of the sporangium, black or very dark brown, without hypothallus but widening above into a shallow expanded base for the sporangia; columella none: capillitium dull yellow, sometimes white, strongly calcareous, physaroid, heavy; spores free, dark brown in mass, pale violet by transmitted light, minutely verruculose, the tiny warts in some areas more densely placed, producing evident shadowy spots, 10–11 µ.
This interesting little species occurs on the lower surface of fallen logs, blocks, etc., in colonies of considerable extent, hundreds of sporangia in a place. The capillitium is comparable to that of B. decipiens or B. panicea; it is physaroid to the extent that an occasional filament may be found non-calcic, and not typically badhamioid as in B. papaveracea, B. macrocarpa. The sporangial base persists, dark brown, bearing traces of the clumsy capillitium, but no columella real or simulated. Blackhawk Co., Iowa; communicavit Dr. Jessie Parish. See [Plate XX]., 1, 1 a, 1 b.
Reddish or roseate forms sometimes appear in colonies otherwise as described. It differs from B. affinis in the size and character of the spores, in color and character of the capillitium, habit and surface markings.
7. Badhamia macrocarpa (Ces.) Rost.
- 1855. Physarum macrocarpon Cesati, Flora, XXXVIII., p. 271.
- 1875. Badhamia macrocarpa (Ces.) Rost., Mon., p. 143.
Sporangia scattered or closely aggregate, crowded globose or sub-globose, generally sessile, rugulose, white; the peridium membranous, white above, below yellowish or brown; capillitium not abundant, thoroughly calcareous, the nodes broad, conspicuous, the connecting tubules rigid; columella none; hypothallus scant or none; spore-mass black, spores non-adherent, by transmitted light bright clear brown, thickly spinulose all over, large spherical, 12–15 µ.