642 CALIFORNIA ACADEMY OF SCIENCES. 



pedicels; pedicels i" long, much longer than the ovate 

 bract, reflexed or spreading, 3" long; calyx tube broadly 

 campanulate, i" long, with triangular teeth half as long; 

 banner nearly round, blade i}4" long and wide, with 

 sides a little reflexed, just equaling the wings and keel, 

 arched abruptly to no" at calyx tips, white spot large and 

 purple-veined, flowers greenish-purple; wings obovate- 

 oval, very oblique, 1^2" wide, nearly 2" long, just the 

 shape of the keel; keel blunt, a trifle arched below and 

 tip incurved 90°, with a minute boss at tip, keel about 

 1/4" high; pods i-celled, oval-ovate to half-oval, i5^"-3" 

 long, cross-section triangular to roundish, pod barely sul- 

 cate ventrally, thin-papery, acutish, rounded at base and 

 very shortly stipitate (stipe half the calyx tube), purple- 

 spotted; seeds oblong, on stalk }4" long; ventral suture 

 seed-bearing only in the middle. The stipules are tri- 

 angular, small and seemingly free. 



Astragalus Sileranus var. cariacus. 



No. 6036. September 12, 1894, Elk Ranch, Utah, 

 7000" alt., in gravel. 



No. 6o33f. September 11, 1894, 4 miles below Ranch 

 Utah, 7400° alt., in gravel. 



This plant differs from the type in having pods which 

 are i^' long or less, variously acuminate-pointed and 

 often much contracted at the base ; the leaflets are ellip- 

 tical-oblong, 4" long or very much less on the same plant, 

 with a petiole often 1}^" long; the stipules are rather 

 rigid, green, reflexed, triangular or with a triangular base 

 and the upper ones with a long subulate apex; the plants 

 are often 3° long and either flat on the ground or (as in 

 the type) ascending among the bushes; the pods are 

 from narrowly-oblong to oval and often with an upcurved 

 apex and a downwardly-curved base in the forms with 

 longer pods. 



