LEGUMIN0SJ1. 279 



11. X Y T R P I S, DC, 



1. OXYTROPIS LAMBERTI, Pursh. 



Hab. Interior of Washington Territory and Oregon. — Our speci- 

 mens are in fruit; but they doubtless belong to the variable 0. Lam- 

 berti, including 0. sericea and Plattensis of Nuttall. The pods are 

 ovate-oblong, acuminate, somewhat turgid, compressed vertically, 

 half-2-celled from the introflexion of the ventral suture, and more or 

 less pubescent. 



12. LUPINUS, Tourn. 



1. Lupinus micranthus, Dougl. 



Hab. Prairies near Nisqually, Puget Sound, and California. 



2. Lupinus microcarpus, Sims. 



Hab. Walla- Walla River, Northern Oregon, and in California, 



3. Lupinus pusillus, Pursh. 

 Hab. Walla-Walla River, Northern Oregon. 



4. Lupinus minimus, Dougl. in Hook. 



Hab. Willamette Valley, Oregon, to the northern border of Cali- 

 fornia.— Stems 6-10 inches high, assurgent, almost naked, the leaves 

 being mostly radical and on very long petioles. Spikes densely 

 flowered ; the flowers as large as in L. perennis. Bracts persistent, a 

 little longer than the calyx. Very near L. lepidus. 



