200 
Mycologia 
mitted during the past eighteen months to spend as much time as 
seemed necessary upon a most careful study of every specimen 
of the Myxomycetes in the Curtis herbarium. The following 
notes are the result. As will be seen, most of the specimens re- 
ferred to are of species published under the authority of Berkeley, 
Curtis, or Ravenel either separately or in collaboration. Of the 
125 species contained in the collection, 39 come under this head. 
There are, however, a dozen or more Schweinitzian species repre- 
sented by specimens from the Schweinitz herbarium, and there- 
fore of special interest. In recording these notes, I have followed 
the order in which the specimens occur in the Curtis herbarium 
as at present arranged. The labels and such notes thereon as are 
of value, I have copied precisely as they stand, except that in 
certain cases where Curtis has transcribed the name incorrectly, 
I have used the correct form. 
“ Didvmium chrysopeplum B. & C. (1202) ad fol; dej : ma- 
dida. June. Society Hill, S. C.” 
Through a clerical error Curtis writes chrysoseplon.” The 
specimen is in wretched condition, but the white, calcareous stalk, 
small conical columella, and the “ peridio globoso, exteriore fur- 
furacea fulvo ” of the original description, are characters appli- 
cable only to Physarum melleum (B. & Br.) Mass. The spores 
in the Curtis specimen are pale brown, almost smooth, 7.3-8.4 /a 
diam. 
“ 226. Didymium columbinum B. & C. Venezuela coll. 
Fendler.” 
This name was never published by Berkeley ; but Rostafinski 
(Monog., App., p. 13) refers to this Venezuelan specimen and 
calls it Tihnadoche columhina (Berk.). Miss Lister states (in 
litt. 6/21, ’15) that she has no doubt that this specimen is Physa- 
rum compactum (Wing.), basing her judgment on the very slen- 
der capillitium and the absence of a columella. Of the Curtis 
specimen little remains except a number of white stalks with 
chalky fracture, and the remnants of a delicate, persistent capil- 
litium with small rounded lime-knots ; the violet-brown spores are 
minutely and irregularly spinulose and measure 8.5-10.5/1 diam. 
Under the circumstances, the absence of a central ball of lime in 
