190 THE FLORA. 
1 P. peren’nis, Perennial Wild-bean. Leaflets ovate, pointed. Racemes in pairs. 4-7f. p, 
2 P. diversifo’lius. Trailing W. Leaflets angular, 2-8-lobed. Peduncle longer 
than leaf. ¢ 
8 P.hel/volus, Long-stalked W. Leaflets lance-ovate, not lobed. Peduncle 3-4 
times longer than the leaf. M.S. 
4 P. pauciflo’/rus. Few-jlowered W. Leaflets linear-oblong, hairy. Peduncle longer 
than the leaf. W. 
5 P. vulga’ris. Common Garden-bean. Leaflets ovate, pointed. Racemes solitary, 
shorter than leaves. 
6 P. multiflo’rus. Scarlet Pole-bean. Fls. scarlet, showy. Root tuberous. Pedicels opp. t 
7 P.luna’tus. Lima B. Flowers white. Lfts. ovate-deltoid, acute. Pods broad, large. 
8P.na/nus. Bush-bean. Erect, bushy. Leaves broad-ovate, acute. ft 
2. A’PIOS. Ground-nut. 
Calyx bell-shaped, somewhat 2-lipped, the 2 side teeth nearly obsolete, 
the lower tooth longest. Keel incurved and at length coiled against the 
very broad, reflexed banner. Ovary sheathed at base.-—Twining, smooth 
herbs. 2 Root bearing eatable tubers. Leaves pinnately 5—7-foliate. 
A. tubero’sa. Stem round, twining about other plants, 24f. in length. Leaflets 
mostly 7, narrow-ovate, more or less acuminate, on short stalks, Racemes 
axillary, solitary, dense-flowered, shorter than the leaves. Flowers dark pur- 
ple. The tubers on the root are oval, thick, and very nutritious. In thickets 
and shady woods. July, Aug. 
3. ROBIN'TA. Locust. 
Calyx short, bell-shaped, 5-cleft, the 2 upper divisions more or less 
united. Banner large, wings obtuse. Stamens diadelphous (9 & 1). 
Style bearded inside. Legume flattened, long, many-seeded.—Trees and 
shrubs with stipular spines. Leaves unequally pinnate. Flowers showy, 
in axillary racemes. April, May. 
“'R, visco’sa. Clammy Locust-tree. Racemes rather compact, rose-white, erect, 
Branchlets and stalks sticky. Leaflets ovate. In parks. Native South. 
R Pseudaca’cia. Common Locust-tree. Racemes rather loose, drooping, white, 
fragrant. Leafleta oblong-ovate, smooth, as well as the branchlets. 
R. his’pida. rose Acacia. Shrub 4-9f. high, hispid, with clusters of large, purple 
flowers. Leaflets 5 or 6 pairs, broadly oval. 
4, MELILO'TUS. Melilot. Sweet Clover. 
Calyx tubular, 5-toothed. Keel petals completely united, shorter than 
the others. Of the 10 stamens 9 are united, one separate. Pod 1 or few- 
