Sturgis : Myxomycetes of Curtis Herbarium 209 
ptdcherrimum B. & R. Unfortunately the original description 
quotes no herbarium-number, so that it is impossible to determine 
what specimen is the type. Berkeley merely writes (/. c.) “on 
pine wood”; Curtis’ MS. list says, under No. 1967, “lign: putr. 
Pini ” ; the Curtis specimen is on coniferous wood. Through the 
kindness of Miss A. L. Smith, of the British Museum, I am as- 
sured that of four Ravenel specimens in the Museum herbarium, 
all numbered 744, three were originally labelled Stemonitis por- 
phyra B. & C., which name is crossed out and Physarum pul- 
cherrimum B. & R. substituted, while the fourth bears only the 
latter name. Ravenel’s No. 77 in Fung. Car. Exsicc., Ease. II, is 
labelled Physarum pulcherrimum B. & R. ; the index to the same 
fascicle gives Stemonitis porphyra B. & R., over which is pasted 
a label bearing the same name as the specimen. From these facts 
there would seem to be little doubt but that ^‘Stemonitis por- 
phyra B. & C.” is Physarum pulcherrimum B. & R., and that one 
of these Ravenel specimens served Berkeley as a type notwith- 
standing the fact that the authority for the former name is given 
as “B. & C.” and not “ B. & R.” 
“Stemonitis tenerrima M. A. C. (1343) Ad Herb: corrump. 
Sept. Society Hill, S. C.” 
From this very scanty specimen a single sporangium is nar- 
rowly cylindrical and tapering in shape, 1.7 mm. high; stalk, 0.4 
mm. long ;■ spores pale brownish, very minutely punctate, 5.8-7.2 
ju, diam. It is Comatricha pulchella (Ch. Bab.) Rost. 
“ Stemonitis trechispora B. & C. Venezuela. Coll. Fendler.” 
I recently took occasion® to state my reasons for accepting, as 
applied to this specimen, Rostafinski’s designation, “ dictyo- 
spora,” whether the form were of specific or merely varietal rank. 
Since that time, however. Miss Lister has kindly called my atten- 
tion to the fact that this is a case similar to those cited above 
{Didymium columbinum and D. megalosporum) , in which Article 
49 of the Vienna Rules is applicable. Lister first reduced the 
banded-spored forms to varietal rank under S. fusca Roth, and 
applied to them the name “ trechispora.” That name, therefore, 
is to be accepted as the proper varietal designation. In case. 
3 Mycologia 8: 38. 1916. 
