168 
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 reflexed. Calyx hyaline, laterally flattened, somewhat gibbous, 
rather hairy, deeper cleft above, about 7 mm. long and 2-3 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- 
boutaslongas 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. Pubescénce ashy, on the upper side of leaves. 
Common throughout the region east of the Plains to the Atlantic and 
southward at least to Missouri arid Texas, northward to Hudson's Bay 
and the Saskatchewan. Occasional forms nearly typical are found 
through Montara to the Pacific, but replaced westward mostly by the 
variety Mortoni. 
Astragalus Canadensis var. Mortoni (Nutt.) Watson King’s Rep. 
€8 (1871). A. Mortoni Nutt. Jour. Phil. Acad. 7 19 (1834). A. tristis 
and spicatus Nutt. 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, móstly a little arched. Banner 
ovate. Keel purple-tipped. Calyx truncate at base and inserted oti 
the corner.. Bracts from ovate to subulate and 2-12 mm. long. Pe- 
duncles sometimes a foot long. Leaves rarely 1.5 dm. long. Leaflets 
inclined to be oblong, mostly 6-8 pairs, I-3 em. long. Stems rather 
decumbent below, frequently hardly a foot long. Some northern 
forms have the pods of A. terminalis. Common from New Mexico 
northward and northwestward to the Saskatchewan and California. 
Occasionally this has the pods of the next variety. It varies directly 
at all point into the type species. 
Astragalus Canadensis var. Carolinianus (L.) Jones Cont. 7 647 
(1895)... A. Carolinianus L. 757. This has open spikes of white flow- 
ers which are not thick and fleshy. Pods oblong to oval, decidedly 
inflated, about 1 em. long and apiculate. Leaflets large, elliptical- 
lanceolate and long-petiolulate. Stems slender, flexuous, 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. _ De 
` 125 Astragalus neglectus (T. & G.) Sheldon Minn. Bot. Stud. 9 
- 59 (1894)... Phaca neglecta T. & G. Fl.1 344 ( 1838). A. Cooperi Gray. 
Pods oval-ovate, truncate to cordate at both ends. about 2 cm. long, 
-12 mm. wide, quite oblique, 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, rather 
spreading or sometimes erect, almost capitately 10-25 flowered. The 
leaves 7-12 cm. long, with ‚upper petioles almost none. 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- 
`- .mesota and Brookings S. Dak., along the Great Lakes, in the Middle 
cunmrst&ldespme c: ee ne aren 
