Bean—The Myxomycetes of Wisconsin. 1287 
mass reddish, spores by transmitted light pale, nearly or quite 
smooth, 6-8/*. This species is known at sight by its peculiar 
beautiful tint when fresh, as by the crowded prolix habit of the 
singular overlying sporangia. It is a boundary form un¬ 
questionably. ’ ’ 
From Lister I add the following: ‘ ‘ Copper-colored or deep 
brown with a carmine tinge ; membranous hypothallus; capilli- 
tium marked with a border of broad-based spines, or blunt cogs, 
sometimes covered with minute spines in addition; with many 
free clavate ends.” 
For the three groups of sporangia which I have, Macbride’s 
description of manner of growth and general characteristics is 
accurate. The capillitium illustrated on his “Plate I,” is, how¬ 
ever, entirely different from that which I find. In Lister’s My- 
cetozoa, Plate LXX, A, figs. /. and b. are like what I find. The 
capillitium has a border of broad-based spines, turning from one 
side to the other of the thread. The free ends are very few, but 
they all terminate in large globular swellings from 13 to 18/* in 
diameter. These same globose enlargements are occasionally 
found along the course of the thread, which is 3-4/* thick; there 
are no loops or rings in the thread. I find no difference in 
threads taken from different parts of the capillitium mass. 
My three specimens were collected in the cemetery and Vilas 
woods in October 1903. They are on both wood and bark of de¬ 
cayed poplar. 
Hemitrichia clavata (Pers.) Rost. 
1794. Trichia clavata Pers., Bom. N. Bot. Mag., I., p. 90 
1873. Hemitrichia clavata Pers., Bost.. Vcrsuch, p. 14. 
Saccardo: “Sporangia simple gregarious, stipitate, more or 
less clavate, yellow, shining; stipe rather long, attenuate below, 
wrinkled; concolorous or with the base reddish; spores and capil¬ 
litium yellow or olive, or dusky yellow; capillitium 4/* thick, 
sparingly branched, with free ends obtuse or frequently sightly 
enlarged; spiral bands 5, slender, spaces between two or three 
times the width of the bands; spores warted 8-9/i in diameter. ’ ’ 
Macbride describes the sporangia as clavate or turbinate, color 
yellow, olivaceous, or brownish; peridium generally thin, evanes¬ 
cent above, breaking away so as to leave a more or less definite 
