1254 Wisconsin Academy of Sciences, Arts and Letters. 
this species, as well as in the length of the columella, the charac¬ 
ter of the external net, and the number of the peridial processes. 
I find sporangia from 7 mm. to 15 mm. tall. The markings on 
the epispore, when visible at all, are determinative. The spores 
are always reticulated, dusky or purplish, and from 6 to Sy in 
diameter. 
Dr. Macbride determined for me one large group of very short 
and quite dark brown sporangia, found at Blue Mounds, July 
1904. 
Collections:—Campus and cemetery woods, four collections, 
July 1904; small sporangia, Science Hall greenhouse, July 1904; 
from Blue Mounds a large and very beautiful group of long 
sporangia, June 13, 1904; another group of much shorter and 
darker sporangia collected on the same date and from the same 
locality, both collections made by Prof. R. A. Harper; and in 
July from the same locality a group of quite different general 
appearance. 
Stemonitis Morgani Peck, 
1880. Stemonitis Morgani Peck, Boi. Gaz., V., p. 33. 
Macbride: “Sporangia clustered irregularly, sometimes form¬ 
ing patches several centimeters in extent, rich purple brown in 
mass, cylindric, long, 15-18 mm., stipitate; stipe black, polished, 
shining, rising from a common hypothallus, which extends as a 
thin silvery film beneath the entire colony, but does not trans¬ 
cend its limits ; columella black, percurrent, sparingly branched; 
capillitium of fuscous threads, within forming a network very 
open, the branches scarcely anastomosing until they reach the 
surface where they form the usual net of small meshes, pretty 
uniform in size, and presenting very few small, inconspicuous 
peridial processes ; spores brown, very minutely warted, about 
8y. The clear brown tufts appear in fall, marvels of graceful 
elegance and beauty. At sight easily recognizable by the large 
size and rich color.” 
Lister adopts the name S. splendens Rost. He finds the plas- 
modium to be creamy-white; the sporangia rising from a well- 
developed silvery or purplish hypothallus; columella reaching to 
near the apex of the sporangium, rigid; capillitium of purplish- 
brown threads, the principal branches springing at distant in- 
