86 LEGUMINOS^E. (PULSE FAMILY.) 



lobes of the caruncle subulate, varying in length ; seeds hairy ; radical spikes 

 bractcd. Mountains of Georgia and northward. May. Stems 4' -6' high, 

 from a long prostrate base. Flowers |' long, purple. 



ORDER 46. KRAMERIACEvE. (RHATANY FAMILY.) 



Silky-pubescent herbs or shrubs, with diffuse stems, alternate leaves, and 

 irregular hypogynous purplish flowers, on axillary 2-braeted and jointed 

 peduncles. Sepals 5, colored, deciduous. Petals 5, shorter than the 

 sepals; the 3 posterior ones, long-clawed, often united; the 2 anterior 

 broad, sessile and fleshy. Stamens 4, the posterior ones distinct or united. 

 Anthers 2-celled, opening by a terminal pore. Ovary 1-celled, 2-ovuled. 

 Fruit 1-seeded, woody, indehiscent, armed with hispid prickles. Albumen 

 none. Radicle concealed in the cotyledons. 



1. KRAMERIA, Loefl. 



Characters of the order. 



1. K. lanceolata, Torr. Herbaceous; stems slender, prostrate, mostly 

 branching ; leaves lanceolate or linear, acute ; peduncles longer than the leaves, 

 leafy-bracted above the middle ; claws of the posterior petals, and stamens, 

 united; fruit globose, downy, armed with few strong spreading spines. Tampa 

 Bay, South Florida, and westward. Root long and woody. Stems 1 long. 



ORDER 47. LEGUMIIVOSJE. (PULSE FAMILY.) 



Herbs, shrubs, or trees, with chiefly compound alternate stipulate leaves, 

 and papilionaceous or regular perigynous or hypogynous flowers. Sepals 

 5, more or less united. Petals 5, rarely fewer, or none. Stamens mona- 

 delphous, diadelphous, or distinct. Ovary simple, free, forming a legume 

 in fruit. Seeds without albumen. Leaves almost always with entire mar- 

 gins. 



Synopsis. 



Suborder I. PAPILIONACE^E. Corolla of 5 (rarely fewer) irreg- 

 ular petals, inserted into the base of the calyx, rarely perigynous, imbri- 

 cated in the bud, mostly papilionaceous ; viz. one upper and exterior, 

 termed the vexillum or standard ; two lateral, called wings : and two lower 

 and interior, oftener united by their contiguous margins, forming together 

 the keel. Stamens 10 (rarely 5), separate, monadelphous, or diadelphous 

 (9 & 1, or 5 & 5). Legume 1-celled (sometimes partly 2-celled by the in- 

 troversion of the sutures), or several-celled by transverse partitions. Style 

 simple. Cotyledons thick. 



TRIBE I. LOTEJE. Corolla papilionaceous. Stamens 10 (except No. 8). Legume con- 

 tinuous (not jointed). Cotyledons leafy in germination. Stems (except No. 12) not 

 twining, nor climbing. 



