LEGUMINOSJ5. (PULSE FAMILY.) 115 



6. B. reticulata, DC.? Stems several, prostrate, villous ; leaves trifoli- 

 olate ; leaflets thin, silky, oval or orbicular, slightly cordate, reticulate, 2' -3' 

 long, the lateral ones oblique ; racemes single, or in unequal pairs, loosely 4- 

 10-flowered, 2' -3' long; calyx lobes lanceolate, as long as the corolla. Dry 

 sandy soil, Orange County, Florida. July. (Fred. L. Lewton.) Stems 2 

 long. Legume not seen. 



7. R. erecta, DC. Velvety-tomentose ; stem erect, simple or branched ; 

 leaves trifoliolate ; leaflets oblong-ovate, reticulate, acute ; stipules subulate, 

 persistent ; racemes sessile, densely many-flowered ; legume oblong. Light 

 drysoil. June-August. Stem 1- 2 high. Leaflets 1'- 2' long. Legume 

 8" - 9" long. 



8. R. renif ormis, DC. Villous; stem 2'- 8' high; leaves 1-foliolate, or- 

 bicular or reniform, hirsute beneath ; stipules ovate-lanceolate, racemes nearly 

 sessile, cluster-like ; legume oblong. Dry sandy soil in the lower districts. 

 May- July. 



9. R. mollissima, Shuttlw. Velvety tomentose ; stem simple, 1 high ; 

 leaves trifoliolate ; leaflets ovate, acute, 1' long ; stipules deciduous ; racemes 

 terminal, solitary, 4'- 8' long, loosely many-flowered ; corolla longer than the 

 calyx, Dry sandy soil near the coast, Georgia and East Florida. Rare. 



* * Stem tall, erect, icith long virgate branches : flowers solitary or by jiairs, in the 

 axils of the iifiper leaves: calyx deeply 4-cle ft, shorter than (he corolla. 



10. R. galactioides, Kndl. Stem bushy, purplish, closely pubescent; 

 leaves very small, almost sessile; leaflets 3, oval or obovate, rigid, reticulate, 

 pubescent ; flowers mostly longer than the leaves, yellow, the vexillum reddish 

 externally ; legume oblong, 2-seeded. ( Pitcheria, Nutt.) Dry sandy soil, 

 Florida and Alabama. June. Stem 2 -4 high. Leaflets 3" -9" long. 

 Legume J' long. 



26. APIOS, Boerh. GROUND-NUT. 



Calyx somewhat 2-lipped ; the lateral teeth nearly obsolete, the lowest one 

 longest. Vexillum very broad, reflexed ; the keel at length twisted. Stamens 

 diadelphous (9 & 1 ). Legume nearly terete, many-seeded. A smooth peren- 

 nial twining herb, with unequally pinnate leaves, and brownish purple flowers 

 in dense axillary racemes. 



1. A. tuberosa, Mcench. Swamps, Florida to Mississippi, and north- 

 ward. July and August. Root bearing small edible tubers. Stem twining 

 high. Leaflets 5-7, ovate or ovate-lanceolate. Racemes often by pairs, 

 shorter than the leaves. Seeds black, separated by loose cellular tissue. 



27. PHASEOLUS, L. KIDNEY-BEAN. 



Calyx 5- toothed, the two upper teeth more or less united. Keel of the corolla 

 spirally coiled or twisted. Stamens diadelphous. Legume linear or falcate, 

 few -many-seeded. Twining or prostrate herbs, with trifoliolate stipellate 

 leaves. Flowers commonly large, racemed, or clustered at the summit of the 

 axillary peduncles. 



