CORRECTIONS IN NOMENCLATURE.—IV. 307 
' CORRECTIONS IN NOMENCLATURE.—IlV. 
TRIFOLIUM PETEJEUM will be a suitable name for Mr. 
Rydberg's T. lilacinum, Bull. 'Torr. Club, xxviii. 37 (1901), 
which is invalidated by T. lilacinum, Greene, Proc. Philad. 
Acad. for 1895, p. 547 (1896). 
VCARDAMINE INFAUSTA. C. cardiophylla, Rydb. |. c. 280 
(1901), in conflict with C. cardiophylla, Greene, Fl. Fr. 266 
(1891.) 
" VIOLA OREOPHILA is a name offered instead of the V. 
monticola of Rydb. Fl. Mont. 264, there being a V. monticola, 
Jordan, Obs. ii’ 37 (1846). 
- Y SENECIO ANACLETUS. ©. Toluccanus var. ‘microdontus, 
Gray, Syn. Fl. i, part 2, p. 388 (1884). This elegant sub- 
alpine Senecio, of frequent occurrence from Colorado south- 
ward into Mexico, has already been recognized as a species 
by Mr. Heller, according to whom it is to be called S. micro- 
dontus. But that can not be. There is an S. microdontus of 
‘Madagascar, published by Baker in 1881, not to speak of a 
still earlier employment of that adjective by Weddell, for a 
South American member of the genus. 
STUDIES IN THE CRUCIFERJE.—IV. 
1. New Species of LESQUERELLA. 
L. prurnosa. Perennial, the crown of the root not 
branched, supporting a single tuft of leaves with decum- 
bent scapiform peduncles in their axils: blade of the leaf 
