292 LEGUMINOS^. Agati. 



eels. — A. monoica & sarmentosa, Ell. I. c, ^ sk. 2. p. 233 ; NtiU. ! I. c. ; 

 DC. I. c; Darlingt. ft. Cest. p. 427. Glycine monoica, comosa, & bracte- 

 ata, Linn.; Willd.sp. 3. p. 1058 (also G. sarmentosa); Pursh, fl. 2. p. 

 485. G. monoica, Michx. ! fl. 2. p. 64 ; Bigel. fl. Bast. p. 276. Crypto- 

 lobus Americanus & sarmentosus, Spreng. syst. 3. p. 218. 



Woodlands and thickets, Canada ! to Florida ! and New-Orleans ! west 

 to Red River, Louisiana! Aug.-Sept. — Stems very slender, 3-6 or 8 feet 

 m lenc^th, retrorsely pubescent or villous. Leaflets glabrous or more or less 

 hairy, rhombic-ovate or sometimes rather oblong-ovate, a little oblique. Ra- 

 cemes short, on filiform peduncles : bracts somewhat pubescent, rhombic- 

 orbicular. Flowers pale purple or violet, or nearly white. Legumes of the 

 upper racemes nearly glabrous (except the sutures) •, seeds rather reniform, 

 dark purple. Hypogffian legumes hairy : " seeds ol a motley reddish-brown." 

 JDarlhigt. — A. sarmentosa is the more prostrate form, bearing few petali- 

 ferous flowers. 



2. A. Pitcheri : racemes of the petaliferous flowers mostly branching ; 

 teeth of the calyx (sometimes 5) lanceolate-subulate, nearly as long as the 

 tube; bracts very broad, silky-canescent, rather longer than the pedicels. 



Red River, Arkansas, Dr. Pitcher ! — Stem, petioles, and peduncles dense- 

 ly hirsute with brownish reflexed hairs. Leaves broadly rhombic-ovate, acute. 

 Bracts large, much broader than wide. Vexillum obscurely auricled at the 

 base. Claws of the wings and keel scarcely longer than the lamina. Ovary 

 4-ovuled. Fruit not seen. — We know not whether this species produces 

 apetalous flowers. 



Tribe III. GALEGEiE. Bronn. (partly) 



Corolla papilionaceous (or otherwise irregular). Stamens diadel- 

 phous (9 & 1), or sometimes monadelphous. Legume continuous, de- 

 hiscent, 1-celled, several. seeded (rarely with transverse celhdar parti- 

 tions between the seeds, hut never separating into joints) ; or 1-2-seed- 

 ed and indehiscent. Radicle incurved or inflexed. — Erect herb?, shrubs, 

 or trees. Leaves usually unequally pinnate, seldom stipellate. Inflo- 

 rescence axillary or terminal, racemose or spicate. 



1. Leaves abruptly pinnate. 



All the N. American genera of this section (except Glottidium) have the legumes 

 contracted between the seeds, which are separated by transverse cellular partitions ; 

 they are not, however, truly jointed, as in HedysarcK, to which they nearly ap- 

 proach. They should perhaps be excluded from this tribe. 



14. AGATL Adans.; Rheede, Malah. t. 51; W. <^ Am. prodr. Lid. Or. 



2. p. 215. 



Calyx carapanulate, truncate, slightly bilabiate ; the upper lip with 2, the 

 under With 3 short obtuse broad teeth. Vexillum oval-oblong, shorter than 

 the oblong wings: keel large, falcate, obtusely acuminate, its petals distinct 

 at the base and apex. Stamens diadelphous, slightly protruded ; the sheath 

 with large auricles at the base. Legume attenuated at the base into a short 

 stipe, linear, elongated, a little compressed, many-seeded, much contracted 

 and with transverse partitions between the seeds, but not jointed. Seed 

 Qval. — Small trees of rapid growth and short duration. Leaves abruptly 



