ORDER 46. LEGUMINOS^E. 315 



6 P. stipulata Torr- & Gr. Nearly glabrous and glandless, ascending ; Ivs. pin- 

 nately 3-foliate, Ifts. elliptic-ovate, obtuse, mucronato; stip. (large) ovate; ped. 

 as long as the Ivs. ; spikes capitate. Falls of the Ohio (Jones in N. Am. Flora). 

 Sts. branched from the baso. The- large stipules aro remarkable, resembling those 

 of the red clover. 



7 P. Melilotoides MX. Yirgate, minutely pubescent ; Ivs. 3-foliato, Ifts. oblong- 

 lanceolato, rather obtuse, on very short petioles, more or less glandular ; stip. 

 lanceolate ; spike oblong, at length elongated, on virgate peduncles ; pods orbicu- 

 lar, transversely wrinkled. Dry soils, S. and W. Sts. Slender, branched, erect, 

 2f high. Lfts. 2 to 2J' long, as wide. Ped. G to 10' long. May Jl. (P. 

 cglandulosa Ell.) 



3 P. Onobrychis Nutt. Pubescent; Ifts. ovate-acuminate; rac. elongated ; cal. 

 much shorter than cor., teeth small, obtuse, equal; leg. ovate, transversely 

 wrinkled. Low grounds and thickets, "W. States. St. rigidly erect, nearly simple, 

 3 to 5f high. Lfts. 2 to 4' long, nearly -J as wide. Fls. small, pedicellate, blue. 

 Pods exceeding the calyx, rostrate. Jn., Jl. 



9 P. multijuga Ell. Lfts. numerous, oblong-lanceolate, obtuse ; spikes oblong ; 

 cal. villous. teeth very long ; bracts small. In the upper country, Ga. (Elliott), 

 S. Car. (Darby). St. stout, furrowed 1 to 2f high, nearly smooth. Fls. violet. 

 Lfts. 9 or 10 pairs. May, Jn. 



33. GLOTTID'IUM, Desv. (Gr. yAwrra, tongue; alluding to the 

 singular structure of the pods.) Calyx campanulate, truncated, minutely 

 5-toothed ; vexillum reniform, broader than long ; legume elliptic-ob- 

 long, compressed, pointed at each end ; valves double, the inner mem- 

 branous, inclosing the seeds after the outer have fallen away ; seeds 1 

 or 2. (T) Glabrous. Lvs. abruptly pinnate. Fls. small, yellow. 



G. Floridamim DC. In waste and damp soils, S. Car. to Fla. and Tex. St. 

 tall and rank (4 to lOf). Lfts. 30 to 50, linear-oblong, obtuse, mucronate, 6 to 18" 

 long. Fls. about a third as large as in Sesbania, in slender rac. Pods 18" by 6", 

 appearing after the opening of the outer valve, as tongue and lips. Seeds bean- 

 shaped. (Sesbania platycarpa Pers.) 



34. SESBA'NIA, Pers. Calyx campanulate, subcqually 5-toothed ; 

 vexillum longer than the obtuse keel, the claw appended ; legume very 

 long and slender, linear, closed between the seeds. Shrubs or herbs, 

 with abruptly pinnate Ivs., caducous stip. and bracteoles, and yellowish 

 flowers. 



S. macrocarpa Muhl. Herb annual, glabrous ; Ifts. 30 to 50, oblong-linear, 

 obtuse, mucronate ; rac. about 2-flowered, shorter, but the legumes twice longer 

 than the Ivs. Damp grounds, S. Car. to Fla. and La. St. tall (2 to 8f). Lvs. 

 6 to 10' long, the Ifts. 6 to 9", glaucous beneath. The extremely slender leg. nearly 

 a foot long, with a bordered margin are very singular. Aug. Oct. 



35. AMOR'PHA, L. LEAD PLANT. (Gr. a, privative, juop^//, form; 

 alluding to the deficiencies of the corolla.) Calyx subcampanulate, 5- 

 cleft ; vexillum concave, unguiculate, erect ; wings and keel none ; 

 stamens exserted; legume oblong, somewhat curved at the point, 

 scabrous with glandular points, 1 to 2-seeded. Shrubs or half shrubby 

 American plants. Lvs. unequally pinnate, punctate. Fls. bluish white, 

 in virgate racemes. 



* Leaves stalked (i. e., the lowest Ifts. remote from stem) .............................. No. 1 



* Leaves sessile, Ifts. obtuse, not mucronate 



Lfts. acute, mucronate 



1 A. fruticosa L. Nearly glabrons or somewhat pubescent, shrubby or arbores- 

 cent; Ifts. 9 to 19, oval, petiolulate, very obtuse, the lower pair remote from the 

 stem; cal. teeth obtuse, short, lower one acuminate and rather the longest; leg. 

 2-seeded. A shrub or small tree, 6 to 16f high, Wis. to. La. and Fla., W. to R. 



