In America this seems to be a purely western species. Specimens are before us from western Iowa and from Colorado, South Dakota, Nevada, and Southern California. It is very well marked, though liable perhaps to be mistaken at first sight for sessile phases of _P. notabile_ or _P. cinereum_. The capillitium is, however, at once determinative. Colorado; _Bethel_. Europe generally. 6. BADHAMIA AFFINIS _Rost._ 1875. BADHAMIA AFFINIS Rost., _Mon._, p. 143. Sporangia aggregated, cespitose and sessile, or sometimes stipitate, depressed above, flat or umbilicate below, the wall grayish white, rugulose, and more or less calcareous-scaly; the stipe when present erect or sometimes nodding, black or brownish black; hypothallus scanty; columella none; capillitium not abundant, white, the nodes somewhat expanded; spores globose, minutely roughened, violet-brown, large, 16-17 mu. Chiefly on moss, the pale ashen sporangia generally very small, mounted on the tips of the leaves, sometimes sessile, sometimes with a distinct black stipe in which case the peridium is distinctly umbilicate. Specimens from Kansas referred here have the stipe pale, rugose, long, about twice the sporangium; habitat bark. 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 mu. 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_.