52 BOTANICAL GAZETTE. | March, 
D. tricorne Michx. does not extend further west than 
Minnesota and Arkansas. : 
D. scaposum Greene belongs to S. Utah and Arizona, 
in the latter territory accompanying D. azureum. More fruit 
of it is desirable. wes 
D. uliginosum Curran seems to be a near relative of the 
preceding. It is imperfectly known, only at one station, in 
Lake Co., California. 
D. azureum Michx., with its var. yimineum, extends 
from Saskatchewan and from N. Carolina to Arizona and 
Mexico. The seeds should well distinguish it. 
D. exaltatum Ait. is our most eastern species and can 
not be confounded. ; 
D. Californicum Torr. & Gray seems also quite peculiar, 
and is restricted to the Californian coast district. 
D. scopulorum Gray I take to be a collective species, 
of the Rocky Mountains and northwestward, to the type of 
which I am constrained to annex the following varieties : 
-stachydeum. A form with narrow leaf-lobes and 
" Strict stem (3 to 7 feet high), upper part of this with the long 
and dense spiciform raceme and outside of flower cinereous- 
puberulent.—Interior of Oregon, Cusick. New Mexico and 
Arizona, Pringle. 
- Var. glaucum. Like the other broader-leaved forse 
x Var. subalpinum, A foot to a yard or more high, 
with shorter raceme of larger and deeper-colored flowers, 
the inflorescence and even upper part of stem viscidly pubes- 
cent or villous, and follicles glabrous.—This is 2). elatum 
Gray in Am. Jour. Sci., D. occidentale Watson, and is the 
have deep and long (instead of tuberiferous) roots. It is 
D. Menziesti var. Utahense Watson, Bot. King. Exp. 
