172 



13 ch.*:todontes. 



Pods not ovi r ! cid. long. S-oelled, segeile or nearly so, rarply 

 a little art'Uhi('.*</l)liqiie, optning first at tip along both suture's, 

 in heH<ls or spikes:, small, not inflated, chHrt»c<-ou8, niOf^tly snl- 

 cjite dorsaily, opening but little at nuiturity, with triqiu'trous ro 

 rfMiilorui cross-section. Flowers not over I em. long, broad. Ca- 

 lyx tube carnpHnnlate, rarely 4 mm. long, with piibulwte or filiform 

 teeth about as long HM tube, closely sessile. Hrftctsii ( }('j'f;at( ci. 

 Very pubescent, tufted plants from woody perentiiul roots. 



KEY 



A. Caespitose plants with very ihort internodes, confipicuous and hy- 

 aline and connate stipules, and leaves 2-3 cm. long I< lowers purple, 

 in heads on short peduncles. Pods not longar than calyx, very hairy. 



128 Austinae 

 2A. Plants erect or only decumbent, tufted, with slender f tens at 

 least a foot high, with slender internodes, openfTvhobit end natrow 

 leaves. Stipules connate only at very base. Leaves 5-10 err., long, 

 the upper ones sessile or short-petioled. Flowers in »pikfs, rarely in 

 hcad«, and pods in spikes. 



2AB. Pods not laterally flattened nor longer than Crlyx. 



Pods not reflexed. 129 SpEldingii 



Pods reflexed. 130 Erai'ntcni 



2A2B. Pods conspicuously laterally flattened, oblopg-lancet late 

 and very sharp, much longer than calyx, 6-10 mm. Iohr. Flowers imd 

 pods reflexed and in narrow, long, loose spikes. 



131 Lysllii 

 128 Astragalus Austinae Gray Hot. Cal. 1 156 (1876 . T ;u.- :.l-.jut 

 7 Him. long and 3 mm. wide, oblong to elliptical, not exserted, shallow 

 sulcate, barely splitting the calyx, barely acute, with rounded tip, at 

 base notched and short-stipitate. conspicuously 1-celled at tip, with 

 ventral .'■uture raised and thickened bnt not acute, with dorsal suture 

 produced toward but not to the ventral, a little flatteiie<l laterally, in- 

 clin«d to be reflexed, with cross-section nearly circular, the groove 

 not running to the tip. Flowers inclined to be reflexed. 7-10 mm. long, 

 sessile. 10-12, purple-veined and with light-colored blades, barely 2 

 mm. longer than calyx, banner oval-ovate, about 4 mm. long, abrujit- 

 ly archtd at end of calyx to 30-60 degrees, about 3 mm. longer th.ir 

 wing.', with sides reflexed about 1 mm. wide and mo^t in the middle 

 but not ;*t all at tip; groove U-shaped, broarl, fillim.' the whole barife 

 al'ove. Wings linear to oblong, about 1 mm. longer than keel, a little 

 airched. obtu.>e, the right hand one folded over the keel, the other fl n 

 ing, both wings and banner hairy on the outside. Keel short, straighi, 

 2 mm. high, incurved at lip to 110 degrees, purple, barely as long a^ 

 calyx, the tip a knob »nd very blunt. Calyx narrowly campanulate, 

 the tube about 3 mm. long, inserted on the lower corner, cleft deepc , 

 above, not narrowed below; teeth green, uneciual, arched and lax, fili 

 form, not shorter than the tube. Bracts subulate. 4-7 nmi. long, thin 

 Peduncles 2-7 cm. long, erect, rather- stout, mostly longer th.ui the 

 leaves, .rnbscaposc though actually in the upiter axils. Leaves clus- 

 tered, spreading, the lower long-petioled. Petioles stout, not sulcale. 



