324 BOTANICAL GAZETTE [NOVEMBER 
MAsSEE and Cookg give similar descriptions, except that CooKE 
employs the term Macrosporium brassicae Berk., and describes the 
conidia as antennaeform, rather longer than the peduncle. ELtiorr4 
concluded that A. brassicae is morphologically similar to A. solani 
(E. and M.) Jones and Grout, and placed both in the same group, 
which he based upon having long, narrow, regular, tapering spores 
with few longitudinal septae. It appears that the form of Alternaria 
which the writer dealt with differs from A. brassicae both morpho- 
logically and in the form of spot produced on cabbage. In view of 
this difference, it is highly probable that a new species is involved in 
the production of the leaf spot found in the San Francisco district, © 
and it is suggested that it be named Alternaria oleracea, 
DEPARTMENT OF AGRICULTURE 
Wasarincton, D.C. 
4Eiott, Jonn A., Taxonomic characters of the genera Alternaria and Macro- 
sporium. Amer. Jour. Bot. 4:439-476. pls. 19-20. 1917. 
