82 LEAFLETS. 
that something like the restoring Cau/anthus as a genus and the 
merging in it of the perennial Streptanthi of the Rocky Moun- 
tains and the Great Basin had been a better course. But the 
most needful thing to be done, as I now view the case, is the 
complete segregation from Streptanthus of many, if not all the 
Californian plants that have been so referred; for in their floral 
characters they are extremely different from the typical species 
belonging to the flora of distant Texas and Arkansas. Whether, 
however, these annuals and perennials of California were better 
placed as constituting one new genus or two three, is a matter 
concerning which there might easily be diversity of opinion, 
and upon which my own might change under more light. 
Most of the Californian species were first really described by 
myself ; this being said not only of the many kinds that were 
discovered and first published by me, but also of most of those 
named and imperfectly or even falsely described by earlier 
authors. For that particular group which Nuttall indicated as 
sub-generic under the name Euclisia, and which I here propose 
in the rank of a genus of the same name, the characters of the 
species reside chiefly in the calyx; the corolla in all being 
extremely different from that of true Streptanthus, as has been 
indicated by many authors ; but the corolla of EUCLISIA is in 
no particular different from that of all Caulanthus, Stanfordia, 
and a great proportion of the species at present referred to 
Thelypodium. 
On the calyx alone, then, unless the flatness of the pods, and 
the absence of broad more or less rounded bracts replacing 
Jeaves upon the stem, EUCLISIA must seem to rest; and those 
marks of the calyx I have presented fully, in the diagnosis of 
species in the Flora Franciscana, and in the Bay Region 
Manual. Itis, on the whole, a bilabiate calyx, in at least, the 
typical species, three of the sepals being connivent together at 
tip behind the corolla on the upper side; the individual sepals 
sharply carinate, also never green, but white or else deeply, 
usually’ even darkly colored. I append a partial list of species. 
E. GLANDULOSA. S. glandulosus, Hook. Ic. c. 40 (1836), as 
to original specimens, but figures false. S. peramænus, Greene, 
