Vor. II.] PEA FAMILY. SS }6I7/ 
2. Rhynchosia latifolia Nutt. Prairie 
Rhynchosia. (Fig. 2231.) 
Rhynchosia latifolia Nutt.; T. & G. Fl. N. A. 1: 
285. 1838. 
Softly pubescent, stem angled, trailing or 
climbing, sometimes 5° long, with a few long 
branches. Stipules lanceolate, small, or wanting; 
petioles 1/-3/ long; leaflets 3, broadly ovate, or 
somewhat rhomboid, or the end one orbicular, 
1/-3/ long, mostly obtuse; racemes elongated, 
exceeding the leaves, sometimes 1° long in 
fruit, many-flowered; pedicels 1//-2’’ long; 
calyx about 6’’ long, very deeply parted, the 
segments narrowly lanceolate, acuminate; cor- 
olla little longer than the calyx; pod oblong, 
acute, very pubescent, about 1’ long. 
In dry soil, Missouri to Louisiana and Texas. 
May-June. 
3. Rhynchosia erécta (Walt.) DC. 
Erect Rhynchosia. (Fig. 2232.) 
Trifolium erectum Walt. Fl. Car. 184. 1788. 
Rhynchosia erecta DC. Prodr. 2: 384. 1825. 
Rhynchosia tomentosa var. erecta T. & G. Fl. N. 
A. 1: 285. 1838. 
Erect, rather stout, simple or slightly 
branched, velvety-pubescent or tomentose, 
1°-2%° high. Stipules linear-lanceolate, 
acuminate, 2//-3/ long; petioles shorter than 
or equalling the leaves; leaflets 3, oval, ovate 
or slightly obovate, thick, densely tomentose, 
especially beneath, obtuse or acute, 1/—2/ 
long; racemes 5~15-flowered, sessile or short- 
peduncled; flowers 3’/’-5’’ long; pod oblong, 
pubescent, 6’’-8’’ long, about 3/” wide. 
In dry soil, Delaware to Florida, west to 
Louisiana. May-Sept. 
4. Rhynchosia simplicifolia (Walt. ) Wood. 
Round-leaved Rhynchosia. (Fig. 2233.) 
Trifolium simplicifolium Walt. Fl. Car. 184. 1788. 
Rhynchosia rentformis DC. Prodr. 2: 384. 1825. 
Rhynchosia tomentosa var. monophylla T. & G. Fl. N. 
A. 1: 284. 1838. 
Rhynchosia simplictfolia Wood, Bot. & Fl. 96. 1870. 
Erect, low, simple, pubescent with spreading 
hairs, 3/-9’ high. Stipules lanceolate, acuminate, 
3/’-4/’ long; petioles shorter than or exceeding the 
leaves; leaflet usually solitary, orbicular or broader, 
thick, obtuse and rounded at the apex, slightly 
cordate at the base, 1-2’ long (leaflets rarely 3, the 
lateral ones ovate); racemes rather densely flowered, 
peduncled; flowers 3/’-5’’ long; pod as in the pre- 
ceding species. 
In dry soil, Virginia to Florida, west to Louisiana. 
May-July. 
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