SMITH: STUDIES IN THE GENUS LUPINUS 223 
Key to the varieties of Lupinus concinnus 
Densely villous with hairs 1-2.5 mm. long; petals more or 
less reddish purple; banner 6-10 mm. long, 3-9 mm. 
wide, mostly with rounded or emarginate apex. 
Flowers 6-7 mm. long; banner about 6 mm. long and 
3 mm. wide. 2b. var. Orcuttit. 
Flowers 7-12 mm. long; banner 4-9 mm. wide. 
Flowers 7-9 mm. long; banner 7-8 mm. long and 
4-5 mm. wide. 
Flowers 10-12 mm. long; banner 9-10 mm. long 
and 7-9 mm. wide 
Loosely villous or mostly appressed-pubescent; banner fae 
- long, 3-4 mm. wide, mostly with angled a 
patemeas cbeidaay spreading; petals reddish ae 
or blue-edged. 
Pubescence mainly appressed; petals white or yellowish. 
Leaflets 5-6, spatulate, obtuse at apex 2e. var. pallidus. 
Leaflets 6-9, oblong-lanceolate, angled at apex. 2f. var. desertorum. 
2a. L. concinnus. 
2c. var. optatus. 
2d. var. Agardhianus. 
2a. LUPINUS CoNcINNUS Agardh, Syn. Gen. Lup. 6. pl. 1, f. 1. 
1835. [Fic. 68. 
Simple or much branched from the base, 6-20 cm. tall, densely 
villous, the spreading hairs 1-3 mm. long: leaves numerous, very 
villous, the petioles two to four times as long as their longest 
leaflets, which are five to eight, oblanceolate with obtuse apex, 
10-20 mm. long, 2-5 mm. wide; racemes nearly sessile, 3-6 cm, 
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Fic. 68. Lupinus CONCINNUS Agardh. D. E. Elmer 3279 (US); 2. L. R. 
Abrams 3564 (US); 3. E. O. Wooton (US case: 4. COR. Orewt CUS 21071); 5 
T. S. Brandegee (US 735428). 
long, surpassed by the leaves; flowers 7-9 mm. long, usually 
well scattered, pedicels about 1 mm. long, stout, densely villous; 
calyx also densely hairy, upper lip bifid, about 4 mm. long, lower 
lip three-toothed, somewhat longer; petals edged with rich 
reddish purple, banner 7-9 mm. long, 4-5 mm. wide, rounded or | 
emarginate at apex, wings 7-8 mm. long, about 3 mm. wide, keel 
