164 LEGUMINOS^. Clitokia. 



Flower two inches in length, pale blue tinged with purple. Legume 2-3 inches long and 

 about one-third of an inch wide, strongly torulose ; the stipe stout, as long as the peduncle. 

 Seed the size of small peas, covered with a glutinous kind of varnish, brown ; the hilum small 

 and roundish. 



Sandy soil on a bushy hill-side about half a mile from the South Ferry, Brooklyn ; the only 

 known locality of this beautiful plant in the State. Fl. Latter part of July - August. Fr. 

 September. 



8. AMPHICARP.(EA. Ell. in jour. acad. Phil. 1. p. 372 ; Torr. ^ Gr. fl. N. Am. 1. 



p. 292 ; Endl. gen. 3660. HOG-NUT. 



[ Greek, amphi, on both sides, and carpos, fruit ; producing fruit both above and under ground.] 



Flowers of two kinds ; those of the upper many-flowered racemes perfect and petaliferous, 

 but often sterile ; those at the base of the stem or underground mostly on one- or few- 

 flowered peduncles, imperfect and deformed, but usually fertile. Perfect fl. Calyx 

 tubular-campanulate, 4-toothed, without bracts. Vexillum incumbent, and partly folded 

 round the other petals. Ovary 4-ovuled : style smooth : stigma small, capitate. Legume 

 linear-oblong, stipitate, compressed, somewhat scimitar-shaped, 3 - 4-seeded. Imperfect 

 or Apetalotjs fl. Calyx nearly as in the petaliferous flowers. Corolla none, or with the 

 rudiment of a vexillum. Stamens either wanting or 5 - 10, several of them bearing perfect 

 anthers, the others rudimentary : filaments distinct. Ovary 1 - 3-ovuled, with a short 

 recurved style. Legume obovate or pyriform, 1 - 2-seeded, usually maturing beneath the 

 surface of the ground. — Annual, twining or sarmentose herbs. Stems retrorsely pubescent. 

 Leaves pinnately trifoliolate. Stipules resembling the bracts, striate. Racemes of the 

 perfect flowers often somewhat compound : bracts orbicular, often emarginate or 2-cleft 

 (each formed by the union of a pair), clasping. 



1. Amphicarp^a monoica, Torr. Sf Gr. Common Hog-nut. 



Racemes of the petaliferous flowers nodding ; teeth of the calyx short and broad, somewhat 

 triangular ; bracts shorter than the pedicels. — Torr. ^ Gr. I. c. A. monoica ^ sarmentosa, 

 Ell. I. c, and sk. 2. p. 233 ; Nutt. gen. 2. p. 213 ; DC. I. c. ; Beck, hot. p. 91 ; Darlingt. 

 fl. Cest. p. 427. Glycine monoica, comosa and bracteata, Linn.; Willd. sp. 3. p. 1058 

 (also G. sarmentosa) ; Pursh, fl. 2. p. 485. G. monoica, Michx.fl. 2. p. 64 ; Bigel.fl. Bast, 

 p. 276. Cryptolobus Americanus and sarmentosus, Sprang, syst. 3. p. 218. 



Root fibrous and branching, usually producing numerous small subterraneous flowers. 

 Stem slender, 3-8 feet long, climbing over shrubs, etc., angular, more or less hairy or villous ; 

 the hairs retrorse, and more or less appressed, but sometimes spreading, and of a brownish 



