VOL. III.] Contributions to Western Botany. 291. 



to a right angle, erect part i)4 lines long; keel surpassing calyx 

 teeth lYz lines, incurved with the end straight, blunt, purple tipped; 

 wings barely equaling the keel; pod oblong-linear, very shortly 

 stipitate, 6 lines long, i^^ lines wide, abruptly acute, both sutures 

 prominent, flattened, apparently i celled, ventral suture arched, 

 dorsal straight. 



June 23, 1891, Deep Creek Mountains, Western Utah, at 5,500 

 feet altitude, among brush. The arching of the ventral suture of 

 the above two species would suggest A. Robbinsii, as that feature is 

 very rare in Western plants, but the racemosely arranged short 

 peduncles and upper simple leaves are quite peculiar. 



Astragalus Bigelovii Gray. This in its flower is allied to 

 the A. eriocarpiis group along with A. ampiiioxys^ and apparently 

 should include the A. Mathezvsii Watson if there are no other good 

 characters than those given by Watson. Banner arched 80° in a 

 gentle curve, sides reflexed from calyx to tip 100°, the folded part 

 being i^ lines wide at base and gradually reduced upwards so that 

 the outline of the banner as one looks at it is oblong with straight 

 sides and an enlargement at the base; sulcus a line deep and ^ 

 wide, broadly V shaped and continuous to the apex of banner, 

 white spot occupying the whole of the sulcus and to within a line 

 of the top of banner, narrowly oblong, emarginate, purple tinged 

 below; base of banner, sides and tip rose purple, darker at the 

 base; wings linear, ^ line wide, with a little lobelet on upper side 

 near the base, obtuse, ^ line longer than keel, ascending 30°, dark 

 rose purple at base and the upper two lines white, nearly flat with 

 the tips slightly incurved and so not quite vertical; keel dark purple- 

 tipped, blunt and moderately incurved; banner rising 4 lines beyond 

 the tip of keel, in all 5 lines longer than tip of calyx lobes; calyx 

 pink, a little inflated, narrower with age and, white, somewhat flat- 

 tened, gibbous, ascending 45°; bracts 3 lines long and green. 



Taken from specimens gathered at Rincon, New Mexico, April 

 15, 1892. It is also abundant in Eastern Utah. 



, Astragalus glareosus Douglas. The plants which I have 

 hitherto distributed as A. glairosus are A. Chamceleiice Gray, while 

 this plant occurs sparingly throughout the Great Basin region of 

 Utah, and is credited to Southern Idaho, and by Coulter to Wyo- 

 ming also. I have hitherto considered it as A. Chamceleuce but it 



