188 PABACEAE. 



16. BEADBURYA Eaf. Fl. Ludov. 104. 1817. 



Slender vines, with pinnately 3-foliolate leaves (rarely 5-7-f oliolate ) , per- 

 sistent stipules, and large axillary flowers. Calyx campanulate, its teeti or 

 lobes nearly equal; standard orbicular, nearly flat, spurred on the back near its 

 base, clawed; wings obovate, curved; keel curved; stamens more or less dia- 

 delphous (9 and 1) ; style incurved, bearded at the apex around the stigma; 

 pod linear, flattened, nearly sessile, partially septate between the seeds, 2- 

 valved, the valves thick-edged, longitudinally finely nerved along their margins. 

 [In honor of John Bradbury, who travelled in America early in the last century.] 

 About 30 species, natives of America. Type species: Bradiurya scandens Baf. 



Pods 4.5-5.5 mm. wide, ; seefls cylindric, 7.5-8 mm. long, black or yellow with 

 black blotches. 1. B. floridana. 



Pods 3.5-4 mm. wide ; seeds cuboid-cylindrie, 3.5-4 mm. long, 



red-bro-uTi or with lighter blotches. 2. B. virginiana. 



1. BradlDurya floridana Britton, Torreya 4: 142. 1904. 



Stems glabrous or nearly so, 1 m. long or more. Stipules long-acuminate; 

 leaflets lanceolate to oval, glabrous, reticulate-veined on both sides, 8 cm. long 

 or less, obtuse and aristulate at the apex, rounded at the base, the glabrous 

 petioles 2-5 cm. long; peduncles pubescent, or glabrous, 3-6 cm. long; bracts 

 acute, pubescent, 1 cm. long or less; corolla nearly white or violet striped with 

 lavender or yellow, 2.5-4 cm. long; pod 8-12 cm. long, 4.5-5.5 mm. wide, long- 

 tipped, glabrous; seeds black or yellow with black markings. 



Scrub-lands and white-lands, Abaco, Rose Island, Berry Islands, Eleuthera, Con- 

 ception Island. Exuma Chain, Long Island, Great Ragged Island, Acklin's and Crooked 

 Islands : — Florida. Floeida Buttbeflt-pea. 



2. Bradburya virginiana (L.) Kuntze, Eev. Gen. PI. 164. 1891. 



CUtoria virginiana L. Sp. PI. 753. 1753. 



Centrosema virginianum Benth. Ann. Mus. Wien. 2: 120. 1838. 



Centrosema virginianum angv.sti folium Griseb. PI. Br. W. I. 193. 1860. 



Perennial, glabrous or finely rough-pubescent, 6-12 dm. long. Stipules 

 linear, acute; leaflets ovate, oblong-lanceolate or linear, stipellate, rounded at 

 the base, reticulate-veined, 2.5-5 cm. long; peduncles about equalling the 

 petioles, 1-4-flowered; bracts ovate, acute, finely striate; flowers 2.5^ cm. long; 

 corolla violet; calyx -lobes linear; pod 10-13 cm. long, 3.5—4 mm. wide, long- 

 acuminate, its margins much thickened. 



Scrub, rocky and grassy lands, throughout the archipelago from Abaco and 

 Great Bahama to Grand Turk and Inngua : — New .Tersey to Florida and Texas ; 

 Mexico to Bolivia and Brazil ; West Indies. A species composed of a large number 

 of insignificantly differing races with leaflets varying from linear to broadly ovate ; 

 widely difCering plants often growing close together in the same colony. Spueeed 



BUTTEEFLY-PEA. LADY'S SLIPPER. 



17. MXrcirNA Adans. Pam. PI. 2: 325. 1763. 



Herbaceous or woody vines, with pinnately 3-folaolate leaves, and large 

 pedicelled flowers in axillary, long-peduncled clusters. Calyx campanulate, its 

 two upper teeth connate. Standard folded, auricled at the base; wings in- 

 curved, longer than the standard; keel as long as the wings or longer, its apex 

 cartilaginous or acute. Stamens diadelphous (9 and 1) ; anthers alternately 

 longer and shorter. Ovary sessile, villous; ovules few; style naked, filiform; 

 stigma terminal and small. Pod thick, coriaceous, linear or oblong, 2-valved, 



