Hamosi. 256 



at the rounded and nearly erect and purple tip. Calyx tube nar- 

 rowly campanulate, about 3 mm. long, attached near the lower 

 corner, the broadly triangular teeth about half as long and nigres- 

 cent. Pedicels about 2 mm. long, longer or shorter than the ovate 

 to triangular-subulate bracts. Peduncles 1-2 dm. long, filiform, 

 rather spreading. Spikes rounded to oblong. Leaves about 1 dm. 

 long, weak and lax and with tapering rachis and evident petioles 

 even above. Leaflets 7-19 (mostly 10) pairs, all about the same 

 size on each leaf, the well developed ones oblong to obovate, with 

 cuneate and long-petiolulate base, hardly 1 cm. long, those of the 

 lowest leaves often very small and oval, usually notched. Upper 

 internodes the shorter. Stems 1-2 ft. long, weak and straggling. 

 Stipules rather broad, acute, green and spreading, 3-5 mm. long. 

 Plants nearly smooth. From Mason Co., 111., and eastern Kansas 

 to Oklahoma and southern Texas and Mississippi on prairies and 

 margins of woods. Lower Temperate life zone mostly. Blooming in 

 spring. 



Astragalus distortus var. Engelmanni (Sheldon Minn. Bot. Stud. 

 9 152 (1894) as species). Pods lunate, reticulated, with cross-sec- 

 tion triangular-cordate, the dorsal suture inti-uded only as a raised 

 line, coriaceous, not obcompressed, 4-5 mm. high. No. 145 E. Hall 

 from open woods at Houston, Texas, in flower and fruit in April. 

 Also Indian Terr. (Oklahoma) by Carleton. 



216. Astragalus glaber Mx. Fl. 2 66 (1803). A. apilosus 

 Sheldon. Tragacantha Michauxii Kuntze. Pods narrowly oblong to 

 linear, 1.5-2.5 cm. long, 4-6 mm. high or wide, coriaceous, acute 

 at both ends and a little curved below, somewhat swollen in the mid- 

 dle, inclined to be obcompressed when mature, shallow-sulcate dor- 

 sally, smooth, reticulated, not fully 2-celled the suture being in- 

 truded half way, with triangular-reniform cross section. Flowers 

 white, spreading to reflexed, a little over 1 cm. long, not narrow. 

 Banner 6-8 mm. long, sharply arched at calyx tips to erect, about 

 4 mm. longer than wings, with sides reflexed below. Wings oblan- 

 ceolate, little longer than keel, about 2 mm. wide, arched 45°. 

 Keel about 6 mm. long, the base a trifle convex, then abruptly erecc 

 and tip 4 mm. high, triangular, but obtuse, the base about 3 mm. 

 high. Calyx about 5 mm. long and 3 mm. high, nearly truncate 

 below and attached on the lower corner where it is a little fleshy, 

 not oblique above, with broad and rounded sinuses and narrowly 

 triangular teeth alaout 1 mm. long, hyaline. Pedicels slender, 2-3 

 mm. long, rather longer than the ovate bracts. Peduncles about 

 as long as leaves, the rachis as much more, slender. Leaves 6-8 

 cm. long, tapering, scattered (because of the slender internodes). 

 Leaflets 7-18 pairs, 1-2 cm. long, linear-elliptical, thick, the lower 

 ones obtuse to notched, conspicuously reduced above on the rachis. 

 Stipules minute, spreading. Stems strict, very sulcate, about 2 ft. 

 long. Pubescence none throughout except on the lower side of 

 leaflets and calyx. North Carolina, Georgia and Florida on barrens. 

 Blooming in summer. Lower Temperate life zone. 



217. Astragalus Coahullae n. sp. Pods linear-oblong, char- 

 taceous, nearly straight, triangular-acute, 2-celled except at tip, 

 flattened laterally, or nearly round, nearly smooth, about 1.5 cm. 

 long and 3-4 mm. high, inclined to be sharply sulcate dorsally. 

 Flowers few, purplish, about 8 mm. long. Banner oval, arched 

 abruptly at calyx tips to 45' or erect, 6-7 mm. long, with sides re- 

 flexed 1 mm. wide below, with narrow white spot purple-veined. 

 Wings lanceolate, arched to 45°, about 2 mm. longer than keel and 

 4 mm. shorter than banner. Keel with straight base and then 

 abruptly rounded to a little more than erect and with deltoid tip 

 3 mm. high. Calyx lube about 3 mm. lorg, acute at base and" 

 about equally inserted, nigrescent, oblique at tip, und cleft deeper 

 above, the sinuses rather narrow, the teeth subulate and nearly as 

 long as tube, black. Pedicels slender 2-3 mm. long, a little longer 



