Inflati 128 



79. Astragalus Craigi Jones Cout. 9 42 (1900). Pods a little arched 

 nearly 2 cm. long, about 6 mm. wide and high, triangular-acute at 

 both ends, the tip a little upturned and flat, the base straight, 

 when young laterally flattened but when mature decidedly inflated 

 and translucent, the cross section nearly oval-reniform, slightly to 

 deeply sulcate dorsally and suture produced as a thin edge but 

 hardly one half mm. high, nearly smooth. Flowers white about 7 

 mm. long, arched. Banner purple-veined, about 4 mm. long, oval, 

 abruptly arched to erect at calyx tips, with sides reflexed 1 mm. 

 wide. Wings oblong, ascending, 2 mm. longer than keel. Keel a 

 little exceeding the calyx, rounded and obtuse, short, incurved with 

 erect and straight tip. Calyx tube campanulate, 2 mm. long, and 

 oblique, narrowed, slender, 2 mm. long. Bracts minute, trian:4ular. 

 Peduncles axillary, 1-3 cm. long and as long as the floral raehis, 

 6-8 flowered, sulcate. Leaves about 7 cm. long. Leaflets 4-.") nairs, 

 obovate, long-petiolulate, inclined to be a little alternate below 

 notched, thickish, 7-10 mm. long. Stems perennial and widely 

 spreading, branched, with internodes 2-3 cm. long, about a loot long. 

 Stipules small, green, not connate. Pubescence almost none, hairs 

 snort and appressed. John Day river Oregon, May 1885, Howell. 

 Named for Prof. Craig in whose herbarium it was found. Middle 

 Temperate life zone. 



80. Astragalus lentiginosus Douglas in Hook. Fl. Bor. Am. 1 

 151 (1834) Cystium Rydberg. Pods oblique, with oblique and mostly 

 upcurved tips, sulcate at both sutures, often didymous. Flowers with 

 large keel. This is the most variable of all Astragali. It I'anges 

 from the Middle Temperate peaks to the Tropical deserts. The 

 varieties are best arranged under the following key. 



Flowers in heads. Clearly perennial. 

 Pods in heads. 



Pods translucent or papery. 



Stems prostrate or much elongated. Flowers narrow, not over i cm. 

 long, white or purple-tinged. Peduncles shorter than the leaves. 

 Pods long-pointed, from ovate and hooked to linear. Leaflets obo- 

 vate. A. lentiginosus and Var. diaphanus. 

 Pods very short-pointed, globose or nearly so, little over i cm. long. 

 Vars ineptus, albifolius and Sierrse. 

 Stems ascending to erect. Vars. MacDougali and nigricalycis. 

 Pods chartaceous or coriaceous, not translucent. 



Pods narrow and much arched or hooked, but little inflated, small. 



Vars. scorpionis, Idriensis and carinatus. 

 Pods large, ovate to oval. Vars. diphysus and latus. 



Pods in spikes. Var. palans. 



Flowers and pods in racemes or at least not heads. Plants inclined to be bien- 

 nial and blooming as winter annuals. Mostly Tropical. 

 Pods in long racemes, lanceolate, acuminate, incompletely 2-celled, the dor- 

 sal suture not being fully intruded along the middle and not at all at 

 tip, but little inflated. Vars. Mokiacensis and Borreganus. 



Pods broadly ovate and large, much inflated and mottled. Racemes short. 

 Banner and wings longer than keel. Stems flexuous and widely spread- 

 ing. Leaflets inclined to be obovate and silvery-pnbescent. 



Vars. Coulteri, Fremonti and Yuccanus. 



Astragalus lentiginosus typical. Pods ovate and acuminate with 

 up-turned flat beak, about 2 cm. long, 1 cm. wide, often mottled, 

 with cross section about round. Leaflets nearly smooth, about 8 

 pairs. Peduncles In most of the axils and very short. Leaves 5-10 

 cm. long, narrow. Occasional in the Columbia Basin in the valleys. 

 Middle and Lower Temperate life zones. 



Astragalus lentiginosus var. diaphanus (Dougl.) Jones Cont. 7 

 675 (1895). A. diaphanus Dougl. in Hook. Fl. Bor. Am .1 151 (1834). 



