FABACEAE 647 



upper leaves : flowers scattered along the whole length of the rachis : calyx 6-8 mm. 

 long, pubescent, resinous-dotted, 4-parted about two-thirds to the base ; lobes lanceolate : 

 corolla yellow ; standard glabrous, the spurs of the claw obtuse : pods oblong, 2 cm. long, 

 6 mm. wide, attenuated below, somewhat rounded on the ventral suture, with a short acute, 

 slightly curved acumination : seeds lenticular, 3-4 mm. broad, brown, mottled. 

 In pine lands, Florida. February to October. 



43. ERYTHRINA L. 



Shrubs or trees, with erect stems, or more or less reclining herbs. Leaves alternate with, 

 small stipules : blades pinnately 3-foliolate : stipules gland-like. Flowers perfect, showy r 

 in terminal, more or less leafy-bracted racemes and axillary naked racemes. Calyx oblique : 

 tube truncate or with 5 partially distinct sepals. Corolla often bright scarlet : stan- 

 dard broad or elongated, erect or spreading, nearly sessile or with a long claw : wings 

 small or wanting : keel-petals longer or shorter than the wings. Stamens diadelphous (9 and 

 1 ) or monadelphous at the base. Anthers alike. Ovary stalked. Style slender, with a. 

 subulate apex, incurved, glabrous. Ovules numerous. Pod slightly flattened, torulose. 



Herb : stems annual : racemes many-flowered. 1. E. herbacea, 



Shrub or tree : stems persistent : racemes few-flowered. 2. E. arborea. 



1. Erythrina herbacea L. Herbaceous above the root. Stems more or less spreading, 

 6-12 dm. long, sometimes sparingly armed : leaflets 3, the blades thinnish, deltoid to 

 hastate, 3-9 cm. long : racemes 3-6 dm. long : pedicels 2-6 mm. long : calyx campanulate, 

 6-8 mm. long : corolla scarlet, 3.5-5 cm. long: pods 7-12 cm. long, more or less spreading, 

 deeply constricted between the seeds. 



In sand or pine lands, North Carolina to Florida and Texas. Spring. 



2. Erythrina arborea (Chapm.) Small. A shrub or small tree sometimes 6 m. tall. 

 Stems solitary or thickly tufted, armed : petiole and rachis wire-like : leaflets 3, the blades 

 membranous, deltoid to hastately 3-lobed, 3.5-10 cm. long : racemes 1-2 dm. long : pedicels 

 slender, 4-8 mm. long : calyx campanulate, 7-9 mm. long, shallowly lobed : corolla scarlet, 

 3-4 cm. long : pods 8-12 cm. long, constricted between the seeds. [E. herbacea var. 

 arborea Chapm.] 



In sandy soil, peninsular Florida and the Keys. Spring. 



44. DIOCLEA H.B.K. 



High-climbing shrubs or shrubby herbs, with twining stems. Leaves alternate : blades 

 3-foliolate. Flowers perfect, in axillary racemes: peduncles more or less elongated. 

 Calyx pedicelled : lobes unequal, the 2 upper united, the 2 lateral smaller, the lower 

 one longer Corolla white, blue or violet : standard reflexed ; blade broad, auricled 

 at the base : wings free from the shorter incurved, obtuse or beaked keel. Stamens 10, 

 diadelphous (9 and 1) or monadelphous to the middle, the filament opposite the standard 

 partially adnate to it. Anthers alike or alternately perfect and imperfect. Ovary nearly 

 sessile. Ovules several. Pod narrow or half-orbicular, flattish or turgid, 2-valved, some- 

 times winged. 



1. Dioclea multiflora (T. & G.) C. Mohr. Perennial, minutely pubescent. Stems 

 trailing or climbing, 1-4 m. long, branching : leaflets 3, the blades membranous, ovate, 

 suborbicular or reniform, 5-15 cm. in diameter, usually abruptly acuminate, glabrate above, 

 acute to subcordate at the base : peduncle and raceme shorter than the subtending leaves: 

 pedicels 1-3 mm. long : calyx about 5 mm. long ; lobes lanceolate, or the upper one tri- 

 angular, all longer than the tube : corolla purple ; standard 12-15 mm. long ; keel-petals 

 somewhat shorter : pods oblong, 5-6 cm. long. \_D. Boykinii A. Gray.] 



On river banks, Georgia to Arkansas and Louisiana. Summer. 



45. GALACTIA P. Br. 



Perennial herbs, with prostrate or twining stems, or rarely shrubby plants, with erect 

 stems. Leaves alternate : blades 3-foliolate or rarely 1-7-foliolate : stipules deciduous. 

 Leaflets with entire, often firm or leathery blades. Flowers perfect, in axillary usually 

 peduncled raceme-like panicles often much reduced. Calyx -lobes unequal, the two upper 

 mainly united, the lateral small, the lower one longer than the rest. Corolla white, violet 

 or red : standard broad, erect or spreading : wings oblong or obovate : keel slightly shorter 



