190 THE FLORA. 



1 P. peren'nis. Perennial Wild-iean. Leaflets ovate, pointed. Eacemes in pairs, i-lf. p. 

 2-P. diversifo'lius. TraiUng W. Leaflets angular, 2-3-lobed. Peduncle longer 



than leaf. c. 

 8 P. hei'volus. Long-stalked W. Leaflets lance-ovate, not lobed. Peduncle 8-4 



times longer than the leaf. M. S. 

 4 P. pauoiflo'rus. Few-fiowered W. Leaflets linear-oblong, hairy. Peduncle longer 



than the leaf. W. 



5 P. vulga'ris. Common Gfarden^iean. Lea^ets ovate, pointed, Bacemes solitary, 



shorter than leaves. 



6 P. multiflo'rus. Scarlet Pole-bean.- 'Bis. Bcarlet, Bhovfj. Eoot tuberous. Pedicelsopp. + 



7 P. Ivma'tus. Zima B. Flowers white. Lt'ts. ovate-deltoid, acute. Pods broad, large. 



8 P. na'nus. 3ush-lean. Erect, bushy. Leaves broad-ovate, acute, t 



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, if Eoot bearing eatable tubers. Leaves pinnately 5-7-foliate. 



A. tubero'sa. Stem round, twining about other plants, 2-4f. in length. . Leaflets 

 mostly 7, narrow-ovate, more or less acuminate, on short stalks. Eacemes 

 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. EOBIN'IA. Locust. 



Calyx short, bell-shaped, 5-oleft, 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. 



1 B. visoo'sa. - Olammy Locust-tree. Eacemes rather compact, rose-white, erect. 



Branchlets and stalks sticky. Leaflets ovate. In parks. Native South. 



2 H. Pseudaca'oia. Common Zoeust-tree. Eacemes rather loose, drooping, white, 



fragrant. Leaflets oblong-ovate, smooth, as well as the branchlets. 



8 K. his'pida. Jiose Acacia. Shrub 4r-9f. high, hispid, with clusters of large, purple 



flowers. Leaflets 5 or 6 pairs, broadly oval. 



4. MELILO'TUS. MeUlot Sweet Clover. 



Calyx tubular, 5-toothed. Keel petals completely united, shorter than 

 the others. Of the 1 stamens 9 are united, one separate. Pod 1 or few- 



