662 CALIFORNIA ACADEMY OF SCIENCES. 



elliptical, emarginate, a little narrower below, 6" long, 8 

 pairs or less; peduncles subscapiform, i° long, erect, not 

 stout, slightly sulcate, racemosely flowered on the upper 

 third in fruit, pedicels slender, erect, i" long; calyx cam- 

 panulate i% " long, with very short teeth; pods sessile, 

 oblong-oval, 4-5" long, 3" thick, coriaceous, corrugated, 

 somewhat fleshy when green, erect, obliquely apiculate, 

 truncate at base, ventral suture straight, thick and rather 

 prominent externally, dorsal narrow, not sulcate, nearly 

 2-celled by intrusion of dorsal suture, except at apex, pod 

 nearly round in cross-section. 



Astragalus Rusbyi var. longissimus. This has the 

 proper stems erect and only a few inches long, from a 

 woody base; peduncles angled i-i^° long, sparsely race- 

 mose on the upper two-thirds : flowers very small, about 

 lyi" long; yellowish keel; wings and banner very short 

 and blunt; calyx teeth minute; puberulent throughout 

 even to the pods; leaflets 14-18 pairs, oblong-oblanceo- 

 late, emarginate; with no proper petiole. Type speci- 

 mens in the National Herbarium. Dr. Palmer, Chihua- 

 hua, Mexico, 1885 ; Pringle same, by streams in the Sierra 

 Madre Mountains, September 23, No. 1219. This has 

 the pods more or less sulcate dorsally and broadly, sep- 

 tum a little intruded in the middle of the pod. 



Astragalus RACEMOsus var. BREviSETUs. Ramos, Za- 

 catecas, Mexico, May 5, 1892, Jones. Calyx gibbous above, 

 broadly oblong, i^^" long and i" wide, spurred, setas at 

 base about i" long; pedicels i" long in flower, stout, longer 

 than the ovate-subulate bracts; leaflets about 20 pairs; 

 plants hoary with minute hairs. To this I refer Carle- 

 ton's specimen. No. 221 from Cimarron Valley, Indian 

 Territor}^, with few leaflets, and pedicels 2" long. Also 

 Rydberg's from Curtis Creek, Fremont County, Nebras- 

 ka, June 22. This is nearer to the type species however. 



