CATALOGUE. 93 



long-pedunculate raceme, purple, 3 lines long, on short pedicels, the lowest 

 often subtended by a leaf: calyx-teeth subulate, equalling the tube: pods 

 spreading, linear, straight, puberulent, an inch long, 4-G-seeded. — Southern 

 Arizona, in Sanoita Valley, Rothrock (632 in part). 



Indigofera* leptoslpala, Nutt. (Torr & Gray, Fl. i, 298). — Annual, 

 canescently pubescent, usually decumbent ; stems a foot or two long : leaf- 

 lets 3 or 4 pairs, cuneate-oblong, obtuse, a half to an inch long, sometimes 

 smoother above: flowers nearly sessile, scattered in long-pedunculate 

 racemes exceeding the leaves : petals pale scarlet, 4 or 5 lines long, nearly 

 twice longer than the slender calyx-teeth : pods linear, terete, straight, 

 pubescent, reflexed, an inch long or more, 6-9 -seeded. — From Arizona and 

 New Mexico eastward to the Atlantic; in Arizona, 1871 or 1872, locality 

 not given. 



Astragalus caryocaepus, Ker. — From the Saskatchewan to Texas; 

 at Denver, Wolf (232). 



Astragalus lentiginosus, Dougl. (Hook. Fl. i, 151), and var. Fre- 

 monti, Watson, more hoary-pubescent ; stem flexuous. — From Washington 

 Territory through the interior to Southern Nevada ; both forms were col- 

 lected in Nevada, 1871. 



Astragalus diphysus, Gray (PL Fcndl. 34). — Scarcely more than a 

 glabrous form of the last, with rather larger flowers ; the pods usually 

 larger and with somewhat thicker walls. — Northern Nevada to New Mexico; 

 in Nevada, 1871, and New Mexico, Rothrock (183). 



Astragalus Canadensis, Linn. — From Winnipeg Valley to Washing- 

 ton Territory, Northern Utah, and the Atlantic; in the Wahsatch, 1871. 



Astragalus adsurgens, Pall. (Astrag. 40, t. 31). — From Winnipeg 

 Valley to Nebraska and Colorado ; South Park, Wolf (336). 



Astragalus hypoglottis, Linn. — New Mexico to the Arctic Circle 

 and Alaska; at Apex and South Park, Colorado, Wolf (231, 242, 867). 



Astragalus Drummondii, Dougl. (Hook. Fl. i, 153, t. 57). — Perennial, 



"Indigofeka, Linn. — Calyx broad and short, oblique ; teeth nearly equal. Standard ovate or 

 orbicular ; keel subulately spurred on each side. Stamens diadelpbous ; anthers uniform, glanduhir-apieu- 

 lato. Stylo glabrous : stigma capitate. Pod globose to linear, 2-celhd, 1-many-seidcd, with parliti; us 

 between the truncate seeds. — Herbaceous or shrubby, more or less pubescent with apprcsseel buire 

 attached by the middle ; leaves mostly unequally pinnate, with setaceous stipules ; flowers iu axillary 

 racemes or spikes, usually rose-colored or purple. 



