44 Rydberg : Rocky Mountain flora 



Nelson give as a synonym under the same Lupin us aduncus 

 Greene, which is the same as L. argenteus argopJiyllus, a plant of 

 different habit. 



The so-called Liipiniis 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 Dough, 

 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 i 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 i 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 i 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. 



Utah: Western Bear's Ear, Elk Mountains, Aug. 2, 191 1, 

 Rydberg & Garrett qj6j (type, in herb. N. Y. Bot. Card.); also 

 western slope of La Sal Mountains, July 6, 8^Qj, 85Q6, and 8600; 

 meadow south of Monticello, July 24, 9167; Head of Dry Wash, 



