1(58 



Keel about as long as high, 3-4 mm. high, almost a half circle in out- 

 line, rounded at tip, often appearing to surpass the banner when it is 

 much reflexcd. Calyx hyaline, laterally flattened, somewhat gibbous, 

 rather hairy, deeper cleft above, about 7 mm. long and 2-i mm. high, 

 inclined to be a little declined; teeth triangular to subulate, half to a 

 third the tube. Pedicels almost none in the type. Bracts often as 

 long as calyx tube, thin. Peduncles stout and strict, variable but a- 

 bout as long as the leaves, the spike 5-15 cm. long. Leaves often 

 nearly a foot long, widely spreading, the middle ones the largest. The 

 eaflets 10-14 pairs, smooth above, elliptical to lanceolate, not over 4 

 cm. long, very variable, obtuse, flat, thin, with cuneate base, the upper 

 pairs smaller. Stipules papery, la. ge, inclined to be connate. Stems 

 stout, 2-5 feet high, strict, somewhat branched above, with internodes 

 rarely over 7 cm. long. Pubescence ashy, on the upper side of leaves. 

 Common throughout the region east of the Plains to the .Atlantic and 

 southward at least to Missouri and Texas, northward to Hudson's Ray 

 and the Saskatchewan. Occasional forms nearly typical are found 

 thiough MonKirato ll:e Pacific, but replaced westwanl mostly by the 

 variety Mortoni. 



Astragalus Canadensis var. Mortoni (Xutt.) Watson King's Rep. 

 C8 (lb/1;. A. Mortoni Nutt. Jour. Phil. .Acad. 7 19 (1834). A. trisiis 

 and spicatus Xutt. This is the western form of the species. Pods 

 narrowly oblong, 7-12 mm. long, mostly densely spicate, not so clo. e-, 

 ly appressed. ralher deeply sulcate, mostly a little arched. Banner 

 ovate. Keel purple-tipped. Calyx truncate at base and inserted t'l. 

 the corner. Bracts fi om ovate to subulate and 2-12 mm. long. Pe- 

 duncles sometimes a foot long. Leaves rarely 1.5 dm. long. T^eaflets 

 inclined to be obfong, mostlj' 6-8 pairs, 1-3 cm. long. Stems rather 

 decumbent below, frequently hardly a foot long. Some northern 

 forms have the pods of .'\. terminalis. Common from New Mexico 

 northward and northwestward to the Saskatchewan and California. 

 Occasional^' this has the pods of the next variet}'. It varies directly 

 at all point into the type species. 



Astragalus Canadensis var. Carolinianus (L.) Jones Cont. 7 647 

 (1895). .\. Carolinianus L. 757. This has ojtcn spikes of white flow- 

 ers which arc not thick and fleshy. Pods oblong to oval, decidedly 

 inflated, about 1 cm. long and apiculate. Leaflets large, ellii)tical- 

 lanceolate and long-pctiolulatc. .Stems slender, llexuous, erect, tall. 

 Whole plant nearly smooth. This is the more common form of the 

 southeastern states and northward to the Ohio river, though forms a- 

 bout the same rarely occur as far as Minnesota. 



125 Astragalus neglectus (T. & G.) Sheldon Minn. Bot. Stud. 9 

 59 (1894). Phaca neglecta T. & G. Fl.l 344 (1838). A. Cooperi Gray. 

 Pods oval-ovate, truncate to cordate at both ends, about ,2 cm. long. 

 7-12 mm. wide, (luitc obli(|ue, variously sulcate at one or both sutures 

 and both somewhat intruded, chartaceous to thin-coriaceous, much 

 inflated, cross-nerved. Flowers about as in A. Canadensis except the 

 calyx which is campanulate and nigrescent. Pedicels almost none. 

 Bracts short. Peduncles slender, not longer than the leaves, ratlier 

 spreading or sometimes erect, almost capitately ll)-25 flowered. The 

 leaves 7-12 cm. long, with upper petioles almost npne. Leaflets 6-10 

 pairs, smooth above, ashy-woolly below, nearly contiguous, narrowly 

 elliptical to linear-oblong, cuneate at base and long-petiolulate, roun- 

 ded to retuse, about 2-3 cm. long, thin. Stipules triangular-ovate, 4-7 

 mm. long. Stems a foot or two high. Internodes 5-10 cm. long. On 

 gravelly banks and in sandy open woods from Niagara Falls to Min- 

 nesota and Brookings S Dak., along the Great Lakes, in the Middle 

 Temperate life zone. 



