318 ORDER 46. LEGUMINOSjE. 



1 P. villosus N"utt. Low, villous-hirsute, decumbent ; Ivs. petiolate, Ifta. dis- 

 tant, 9 to 15, oval or oblong, the odd one obovate; ped. rather longer than the 

 Ivs. ; spikes short, somewhat loose ; cal. teeth longer than the tube ; leg. clothed 

 with long woolly hairs. Dry sandy fields and woods, S. Car. to Fla. Sts. 

 spreading on the sand, 2 to 3' long. Lfts. 3 to 4" by 1 to 2". Fls. 10 to 15 in a 

 head, 4 to 5" long. Mar., Apr. 



2 P. neglecta Torr. & Gr. Erect; Ifts. elliptical, 7 to 13 pairs; stip. minute; 

 roc. many-flowered, rather loose and some longer than the Ivs. ; leg. not stiped, 

 smooth, roundish ovate, much inflated, with a deep groove at the ventral suture. By 

 streams and lakes, W. N. T. to Wis. Plant resembling Astragalus Canadensis, 

 but of fairer and finer look. St. 1 to 2f high, terete. Lfts. 9 to 15" by 3 to 5", 

 minutely puberulent beneath. Fls. white, 10 to 20 in a raceme. Pods about 

 f long, with many small sds. Jn., Jl. 



3 P. Robbinsii Oakes. Erect; Ifts. 5 to 11, elliptical, terminal one largest, 

 stip. triangular-ovate ; ped. twice longer than Ivs. ; roc. short, ovate ; cor. hori- 

 zontal, twice as long as the cal. ; leg. stiped, oblong, keeled at the ventral suture, 

 tipped with the recurved, persistent style. Ledges by rivers and lakes, northern 

 Vt., rare. Plant nearly smooth. St. slender, 8 to 14' high. Lvs. remote, 2 to 

 4' long. Lfts. 4 to 8" by H to 3", petiolulate. Rac v surpassing the stem, on 

 ped. 5 to 10' long, 12 to 18-flowered. Cor. white, about 5" long. Pods 1' long, 

 4 to 8 -seeded. May, Jn. 



4 P. astragalina DC. Low, ascending or nearly stemless; If is. 15 to 21, oval; 

 stip. ovate; ped. at length longer than the Ivs.; rac. dense, with 8 or 10 violet- 

 colored fls. ; cal. teeth shorter than tube ; leg. pendulous, stiped. Can. along the 

 St. Lawrence and northward. Sts. 1 to 6' high. 



40. TEPHRCTSIA, L. GOAT'S RUE. CAT-GUT. (Gr. re^poc, ash- 

 colored ; from the color of the foliage.) Calyx with 5, nearly equal, 

 subulate teeth ; bracteoles ; vexillum large, orbicular ; keel obtuse, 

 cohering with the wings ; stamens diadclphous (in the following spe- 

 cies) or monadelphous ; legume linear, much compressed, many- seeded. 

 Herbs and shrubs, with unequally pinnate Ivs. 



Flowers large (9 to 10" Ions), in a leafy, terminal cluster ............................. No. 1 



Flowers small (5 to 6" long), spicate on long, leafless peduncles .................. Nos. 2 4 



1 T. Virginiana Pers. Erect, villous ; Ifts. numerous, oblong, mucronate ; rac. 

 terminal, subsessile among the Ivs. ; leg. falcate, villous. If Plant 1 to 2f high, 

 in dry, sandy soils, Can., Ind., 111., S. to Fla. St. simple, very leafy. Lfts. 15' to 

 27, 10 to 13" by 2 to 3", straight-veined, odd one oblong-obcordate, petiolules 

 1" long. Stip. subulate, deciduous. Fls. as large as those of the locust, in a 

 short, crowded cluster. Cal. very villous. Banner white, keel rose-colored, wings 

 red. Jl. 



2 T. spicata Torr & Gr. Villous with rusty hairs ; st. subsimple; Ifts. 9 to 17, 

 oblong-oval or elliptic, mucrouate, obtuse or retuso ; ped. very long, few-flowered ; 

 cal. segm. subulate, longer than the tube. Common in dry soils, S. States. An 

 unsightly plant. Sts. ascending, 1 to 3f long, flexuous, scarcely branched, tough. 

 Lvs. few, distant; Ifts. 1' long. Ped. 6 to 12 to 18' long. Fls. purplish red. 

 Jn., Aug. 



3 T. hispidula Ph. Minutely hispid or pubescent; sis. dichotomous, slender, de- 

 cumbent; Ifts. 9 to 19, elliptic-oblong, acute; ped. several, few- flowered; cal. 

 segm. not longer than the tube ; pods falcate. Dry soils, S. States. Sts. 1 to 2f 

 long. Lvs. remote; Ifts. 10 to 15" long, mucronate, sometimes nearly linear. 

 Ped. 3 to G' long. Fls. reddish purple. May, Aug. 



(3. ELEGANS T. & G-. Very slender, nearly glabrous; Ifts. 11 to 17, narrowly 

 elliptical, acute; ped. filiform; pods nearly straight Savannah (Pond). 

 (T. elegans Nutt.) 



4 T. chrysophylla Ph. Soft-pubescent, prostrate, dichotomous; If Is. 5 to 9, oval 

 or obovate, coriaceous, glabrous above, silky pubescent beneath ; ped. longer than 

 the Ivs. ; cal. segm. shorter than the tube. Ga. (Savannah, Pond) and Fla. St. 

 If or more long, clothed with a rusty down. Foliage with a lively tinge of yel 



