54 BOTANY. 



peduncles about equaling the leaves ; racemes usually very short and few- 

 flowered ; flowers small, deep blue ; calyx often bracteolate, upper lip very 

 short, truncate, obsoletely toothfed, membranous, lower lip entire or obscurely 

 toothed ; keel slightly exceeding the wings ; pods 2-3-seeded ; seed about 

 1" in diameter. — Near L. pusillus ; distinguished especially by the characters 

 of the calyx. In the valleys and lower canons of Western Nevada to the East 

 Humboldt Mountains, (more frequent than the last,) and on the islands of 

 Salt Lake ; 5-8,000 feet altitude ; May-July. Also collected by Dr. Ander- 

 son (84) near Carson City. Plate VII. Fig. 1. A plant; fuU size. Fig. .2. 

 A flower. Fig. 3. The petals. Fig. 4. The stamineal column ; all enlarged 

 two diameters. (222.) A form of this was collected with some of the pe- 

 duncles much elongated and bearing above the leaves loose racemes of 

 reduced florets, apparently perfect in all their parts, but usually sterile. 

 (223.) 



LupiNUS UNCiALis. Annual, dwarf, villous, diflfusely branched, leafy; 

 leaflets 5, oblong-spatulate, obtuse; flowers small, axillary, solitary; the pedun- 

 cles equaling the leaves or shorter ; legumes 2-seeded. — ^Very small, but 1' 

 high; leaves on |-J' petioles, leaflets 2" long; stipules adnate, obtuse; bracts 

 short, oval ; the upper lip of the calyx deeply 2-cleft, the lower larger, 

 3-toothed, the middle tooth small ; vexillum obovate, shorter than the wings 

 and keel, the sides, scarcely at all reflexed ; wings free or but slightly united ; 

 keel rather obtuse ; flowers ochroleucous, the keel tipped with purple. Found 

 on the dry foot-hills of the Truckee and Pah-Ute Ranges, "Western Nevada ; 

 6,000 feet altitude; May, June, Plate VII. Fig. 5. An entire plant; 

 twice the natural size. Fig. 6. A flower. Fig. 7. Calyx, opened out. 

 Fig. 8. The petals. Fig. 9. The stamineal column, opened. Fig. 10. Ovary; 

 all enlarged four diameters. (224.) 



LupiNus PAEViFLOEus, Nutt. Erect, branching, glabrous or somewhat 

 hirsute-pubescent ; leaflets 5-9, oblong-obovate, obtuse or acute, longer than 

 the petiole; racemes elongated; flowers small, somewhat scattered ; calyx silky- 

 pubescent, lips nearly equal, the upper 2-toothed, the lower entire ; keel 

 ciliate; legume hirsute, 2-seeded.— A well-marked species, tall, (2-4° high,) 

 dark green and nearly glabrous, the leaflets expanded and petioles 

 short. Collected in the Rocky Mountains, near the sources of the Snake 

 River, by Nuttall, Frdmont, (No. 413, 1845,) and Tolmie. Frequent on 



