IRbodora 
JOURNAL OF 
THE NEW ENGLAND BOTANICAL CLUB 
Vol. 21. July, 1919. No. 247. 
A NEW LOCALITY FOR SENECIO CRAWFORDI. 
PaurL C. STANDLEY. 
Or the comparatively few species of Senecio native to the eastern 
United States, one of the rarest or, at least, most local in its distri- 
bution is S. Crawfordii Britton, which was described in 1901 from 
specimens collected near Philadelphia. In Gray's New Manual 
Dr. J. M. Greenman treated the plant as a variety of S. Balsamitae 
Muhl. (= S. pauperculus Michx.), but in his recent monograph of the 
genus | he has accorded it specific rank. Such a treatment it seems to 
merit, certainly as much as S. Smallii Britton, which is recognized 
as a species in Gray's Manual, although to the writer the differences 
which separate it from S. pauperculus seem very slight. 
The specimens of S. Crawfordii cited by Greenman in his monograph, 
most of them in the herbarium of the Philadelphia Academy of 
Sciences, are all from southeastern Pennsylvania and western New 
Jersey. Consequently it may be of interest to record an additional 
locality for the species, considerably removed from its previously 
known range. On May 25, 1917, Mr. William R. Maxon obtained 
in a bog near Suitland, Maryland, a few miles east of Washington, 
specimens of a Senecio which was evidently new to our local flora. 
It was obviously a relative of S. Smallii although conspicuously 
different in its bright green, very succulent, and comparatively short 
and broad basal leaves. The writer identified it as S. Crawfordii, 
and the identification was later confirmed by Mr. Bayard Long, after 
1 Published by permission of the Secretary of the Smithsonian Institution. 
? Ann. Mo. Bot. Gard. iii. 139 (1916). 
