1234 Wisconsin Academy of Sciences, Arts and Letters. 
thickly studded with rounded white lime granules; stipe about 1 
mm., subulate, yellowish white, rugose ; columella none, capilli- 
tim dense snow-white, with minute white round or rounded 
white nodes, in the center a conspicuous mass of lime forming a 
shining ball, not part of the stipe, although sometimes produced 
toward it > spore-mass black ; spores brown violet, delicately spin- 
ulose, 6-7/a. This species may be distinguished from P. globuU- 
ferum by the absence of a columella, by the central ball of lime, 
and the very small rounded lime granules in the meshes of the 
capillitium." 
Lister finds the stalk pale buff, or yellow, translucent above, 
without deposits of lime, enclosing refuse matter at the base; the 
capillitium threads colorless with scattered minute rounded white 
lime-knots; in the centre of the capillitium is usually suspended 
a shining white calcareous ball. Otherwise his description dues 
not differ from Mac bride's. 
Massee has no mention of this species. 
The snow-white sporangia before rupturing, the pale yellow 
stipe, the dense white capillitium, and, more distinctive than any 
other feature, the shining white calcareous ball suspended in the 
center, make this pretty species easy to determine. I find that 
after the spores are dispersed the groups of sporangia havp a 
faint brownish tinge. The spores in my specimens are 6-7/a in 
diameter. 
We have many specimens gathered in the campus woods dur¬ 
ing the last part of July 1904. 
Tilmadoche polycephala (Schw.) Macbr. 
1822. Physarum polycephalum Schweinitz, Syns Fung. Car., no. 
382. 
1899. Tilmgdoche polycephala Macbride, N. — A. S. — M., p. 57. 
Maebride: “Sporangia spherical or irregular, impressed, gy- 
rose-confluent, helvelloid, umblicate below; peridium thin, ashy, 
covered with evanescent yellow squamules, fragile; stipe from an 
expanded membranous base, long subulate yellow; spores smooth, 
violet, 9-11 /a: A most singular species and well defined. The 
piasmodium as it emerges white, then yellow, spreading far over 
all adjacent objects; by morning fruit, a thousand stalked spor¬ 
angia with their strangely convoluted sculpture. The winds 
