OUDEII 42. POLYGALACEyE. 79 



2-cellecl, 2-seeded, loculicidal. Sd. nppcndaged with a various caruiide at 

 the liilum. Mostly herbs, "jitter, and with simple leaves. Flowers often 

 of two forms, the subterranean apetalous. 



* Leaves alternate. a Fls. purple, solitary, 24. Perennial No. 1 



a Fls. purple, racemed, many. Biennial Nos. 2, 3 



a Fls. white. Spike slender. Seeds hairy. Perennial Nos. 4, 5 



a Fls. purple. Spike capitate. Caruncle double Nos. 6 8 



Car. appears simple. (T). . .Nos. 9 11 



a Fls. xanthic. b Spikes solitary, large. Biennial Nos. 12, 13 



b Spikes 00, corymbed, small. Bien Nos. 14, 15 



* Lvs. v*rtic. on the stem. c Spikes acute, slender. Fls. greenish-white. . . Nos. 16, 17, 18 



c Spikes obtuse, thick. . (Sbrube, t. No. 22 25). .Nos. 19, 20, 21 



1 P. pancifolia L. St. simple, erect, naked below ; Ivs. ovate, acute, smooth ; ter- 



minal fls. large, crested, radical ones apetalous. n Woods. 34'. Flowers few, 

 large (10"), very showy. May, June. 



2 P. grandlflora Walt. Ascending, pubescent ; 1 vs. ovate-lanceolate to lance-linear, 



acute: fls. distant, pendulous after blooming, wings large, roundish, covering the fruit, 

 keel as long as the wings (V), crestless. (f) ? Dry soils, S. !) 12'. May Aug. 

 ** P. polygama Walt. Sts. simple, numerous, glabrous; Ivs. linear-oblong, mucro 

 nate, obtuse ; fls. racemed, short-pedicelled, those of the stem winged, those of the 

 root wingless ; keel cristate. @ Fields, tf-12'. Rac. showy. Fls. 2". June, July. 



4 P. Senega L. Seneca Snake-root. St. erect, smooth, simple, leafy ; Ivs. lanceolate, 



tapering at, each end; fls. slightly crested, in a terminal spike-form, slender raceme. 

 il Woods, W. States, rare in E. 814'. Spike 1-2'. Leaves 12'. July. 

 ft. latifolia. Leaves ovate, acuminate at each end. Leaves 2 3'. Ind. 



5 P. alba N. St. angular, branched above ; Ivs. linear; spike lance-linear, pointed, 011 



a long stalk, u Ala. to La. 6 12'. Spikes 13'. 



6 P. setacea MX. Sts. filiform, simple, apparently leafless (Ivs. minute, deltoid-acum.); 



spike (small) oblong, acute ; wings short-pointed, shorter than the petals : caruncle 

 enclosing the short stipe of the hairy seed, u South. If. Leaves 1". June. 



7 P. liicarnata L. Glaucous ; st. erect, slender, mostly simple ; Ivs. few, scattered, 



linear-subulate; spike oblong; wings lanceolate, cuspidate; claws of the petals 

 united into a long, cleft tube ; seed very hairy: (i) N. J. to Fla. 1 2f. June. 



8 P. Chapman!! T. & G. Very slender, simple, or nearly so ; Ivs. linear-subulate ; 



spike loose, roundish-oblong, rather acute ; wings obovate, slightly clawed ; caruncle 

 lateral on the thin-haired seed. South. If. 



!) P. TV uttallii T. & G. St. erect, somewhat fastigiate ; Ivs. linear; spikes acute, 

 roundish-oblong, dense ; wings elliptical, attenuate at base ; crest minute ; caruncle 

 notched, lateral on the thick seed-stipe, (i) Mass., R. I., to La. 6 W. August. 



10 P. lasttgiata Nutt. Slender and much branched above ; Ivs. linear; spikes round- 

 ish, loose-flowered; wings ovate-oblong, distinctly clawed ; caruncle broad, nearly 

 embracing the small seed-stipe (immature). (T) N. J. to Fla. 812'. July + . 



IIP. ganguiiiea L. St. branching at top; Ivs. linear and lance-linear; spikes ob- 

 long, obtuse, dense; wings oval or ovate, obtuse, subsessile ; caruncle mostly simple, 

 nearly as long as the hairy seed. (T) Wet grounds. 1CK. Leaves V. July-*-. 



12 P. Hi tea L. St. mostly simple ; root leaves ppatulate, obtuse, attenuate at base; . 

 cauline ones lanceolate, acute ; rac. ovate-globous, obtuse, dense ; fls. pedicellate ; 

 wings ovate, mncronate, keel with a minute crest. (2) Sands, N. J. to Fla. If. June +. 



13 P. liana DC. Low, ascending; Ivs. obovate and spatulate, mostly radical ; heads 

 ovate, becoming oblong, dense ; wings lance-ovate, cuspidate-acuminate, twice longer 

 than the slightly-crested keel. @ Pine woods, S. V. April, May. 



1 4 P. ramosa EC . Erect, corymbously branched above ; spikes loose, oblong, nume- 

 rous, forming der se, level-topped cymes; radical Ivs. few, epatulate, cauline oblong- 

 linear ; seed oval caruncled, (a) Swamps, Del. to Fla. If. June. 



