Bean—The Myxomycetes of Wisconsin . 
1263 
Lister speaks of the capillitium threads as springing from the 
upper part of the columella. He gives the total height of the 
fruit-body as 0.6 to 1.5 mm. 
Massee says the branches of the capillitium spring from the 
apex and sides of the columella. He calls the spores smooth and 
9-12/* in diameter. 
I find Macbride’s description to be the most satisfactory for 
my material. The peridium is evanescent, but the fragments 
remaining are of an intense metallic violet-blue. The capillitium 
is attached almost entirely to the top of the columella, the points 
of attachment not extending below the rounded edges of the 
truncated top. The spores I find violaceous, evidently warted, 
and 9-11 n in diameter. 
Large groups of this species were found at the mouth of the 
Brule River, July 17, 1897, growing on the stems of green moss, 
and at Sturgeon Bay, July 24, 1907, growing on dead leaves 
and twigs in the woods. 
Reticularia lycoperdon Bulliard. 
1791. Reticularia lycoperdon Bulliard, Champ, de la France, 
p. 95. 
Saccardo: “Spores, columella, and capillitium brown, cortex 
also of the same color, opaque, thin, silvery-smooth or unequally 
covered with warts: spores reticulated upon half their surface, 
8—9/4 in diameter. 
Macbride’s description is much more complete: “JEthalium 
pulvinate, 2.8 cm. broad, at first silvery white, later less lustrous, 
the cortex irregularly and slowly deciduous; hypothallus at first 
conspicuous as a white margin extending round the entire aetha- 
lium, evanescent without, but persisting as a firm membrane 
beneath the spore-mass: spore-mass umber. ’ ’ He calls the reticu¬ 
lated portion of the spore-surface about two-thirds, and says the 
remaining portion is slightly warted. 
Lister describes the capillitium as consisting of the persistent 
remains of the sporangium walls, forming irregular chambered 
and branching strands arising from the hypothallus, dividing 
above into numerous flattened and delicate flexuous threads. He 
speaks of the spores as somewhat turbinate, thickened and closely 
