44 RYDBERG: Rocky MouNTAIN FLORA 
Nelson give as a synonym under the same Lupinus aduncus 
Greene, which is the same as L. argenteus argophyllus, a plant of 
different habit. 
The so-called Lupinus rivularis of the Columbia region and 
extending into Idaho should be known as L. cytisoides Agardh. 
Miss Alice Eastwood has seen the type of L. rivularis Dougl., 
which according to her belongs to an entirely different group from 
the plant called L. rivularis by Dr. Watson in his revision. 
The following Lupines are to be added to the flora of the Rocky 
Mountains: Lupinus nootkatensis Donn has been collected in 
the Rockies of British Columbia and Alberta, L. plumosus Dougl. 
in Idaho and Utah, L. minimus Dougl. in Idaho and Alberta, L. 
lepidus Dougl. in Idaho, L. Cusickii S. Wats. in Idaho and Utah, 
and L. micensis Jones in Utah. 
Lupinus lupinus Rydb. sp. nov. 
Perennial with a woody caudex: stems 3-6 dm. high, densely 
strigose-canescent, sparingly branched; leaves numerous; stipules 
subulate, about 1 cm. long; petioles canescent, 5-8 cm. long; 
leaflets 7-9, oblanceolate, usually flat, 3-6 cm. long, appressed- 
canescent on both sides, less so above; peduncles about 1 dm. 
long; raceme 5-10 cm. long; bracts lanceolate, acute, 3-4 mm. 
long, silvery-pubescent, early deciduous; calyx silvery-pubescent, 
saccate at the base; upper lip scarcely 3 mm. long, the lower fully 
5 mm.; corolla about 1 cm. long, dark blue or purple; banner 
orbicular, pubescent on the back, usually with a light spot in the 
center; keel strongly curved, rather broad, ciliate on the margins; 
pod densely villous, about 3 cm. long, mostly 3-seeded. 
This is related to L. argentinus, L. aduncus, and L. oreophilus, . 
but differs from the first in its grayish instead of silvery pubescence 
of the leaves, which are greener above and not conduplicate, and 
in its less spurred calyx; from L. aduncus in its broader leaves and 
the shorter upper lip of its calyx; and from L. oreophilus in its 
broader leaves and saccate calyx. 
Along streams and in meadows at an altitude of 2,000-3,000 m. 
Urau: Western Bear’s Ear, Elk Mountains, Aug. 2, IgII, 
Rydberg & Garrett 9363 (type, in herb. N. Y. Bot. Gard.); also 
western slope of La Sal Mountains, July 6, 8595, 8596, and 8600; 
meadow south of Monticello, July 24, 9167; Head of Dry Wash, 
