APOCYNACEAE. 337 



5. RHABDADENIA Muell. Arg. in Mart. Fl. Bras. 6^: 173. 1860. 



Woody vines, rarely erect shrubs, with opposite petioled leaves, and large 

 flowers in small racemes or solitary. Calyx 5-cleft., Corolla tubular-campanu- 

 late, with a short cylindric base and a spreading 5-lobed limb, the lobes broad, 

 dextrorse. Stamens short, includedj borne near the top of the corolla-tube; 

 anthers oblong, connivent around the stigma, the sacs with short obtuse ap- 

 pendages at the base. Carpels 2^ distinct; style slender; stigma thick, its base 

 dilated into a reflexed membrane; ovules many in each carpel. Follicles linear, 

 parallel or little divergent, many-seeded. Seeds linear, comose. [Greek, wand- 

 gland, probably referring to the fruit.] About 10 species^ of Florida, the West 

 Indies and South America. Type species: FJiahdadenia Pohlii Muell. Arg. 



Corolla white; leaves slender-petioled. 1. R. paludosa. 



Corolla yellow ; leaves very sliort-petioled. 2. R. Sayraei. 



1. Rhabdadenia paludosa (Vahl) Miers. Apoc. S. Am. 119. 1878. 



Echites paludosa A^ahl, Eclog. 2: 19. 1798. 



A glabrous, somewhat woody vine, often 6 m. long or longer. Leaves 

 oblong or ellijDtic, slightly fleshy^ 3-9 cm. long, obtuse or acutish and mucronate 

 at the apex, mostly narrowed at the base, faintly pinnately veined, the slender 

 petioles 8-15 mm. long; cymes long-peduncled, 1-few-flowered; pedicels slender; 

 calyx-segments narrowly oblong, 6-9 mm. long, apiculate, one-third to one-half 

 as long as the narrowly cylindric part of the corolla-tube; corolla Avhite, 5-6 

 cm. long, the limb about 4 cm. wide; follicles linear, 10-16 cm. long, about 4 

 mm, thick. 



Mangrove swamps, Great Bahama, Andres, New Providence and Crooked Island : 

 — ^Florida ; Cuba ; Hispaniola ; Jamaica ; western tropical continental America. 

 Referred by Schoepf and Mrs. Northrop to Echites hifJora Jacq. and by Coker and 

 by Small to RhaJjcladtnia Mtiora (Jacq.) Muell. Arg. Mangrg^-e Swamp Vine. 



2. Rhabdadenia Sagraei (A. DC.) Muell. Arg. Linnaea 30: 435. 1860. 



Echites Sagraei A. DC. in DC. Prodr. 8: 450. 1844. 



A slender, slightly woody vine, usually less than 1 m. long, pubescent above. 

 Leaves oblong, 1-3 cm. long, subeoriaceous, faintly pinnately veined, obtuse and 

 mucronulate at the apex, obtuse, rounded or subcordate at the base, the margins 

 somewhat revolute, the petioles 1-2 mm long; cymes few-several-flowered; 

 pedicels very slender; calyx-segments ovate, acute, 1.5-3 mm. long, one-fourth 

 to one-third as long as the linear cylindric part of the corolla ; corolla bright 

 yellow, 2-3 cm. long, the limb about 2 cm. wide; follicles linear, 7-11 cm. long, 

 1.5-2 mm. thick. 



Scrub-lands, coppices and pine-lands, Abaco and Great Bahama to Andros and 

 Mariguana and North Caicos : — Cuba. Lice-rogt. 



Echites jamuiccnsis Griseb., recorded from the Bahamas by Grisebach as col- 

 lected by Swainson. is otherwise unknown to us from the archipelago. It may have 

 been mistaken for the preceding species. 



6. URECHITES Muell. Arg. Linnaea 30: 440. 1860. 



Somewhat woody, twining vines, with opposite petioled leaves, and large 

 mostly yellow, cymose flowers. Calyx-lobes 5, narrow; calyx-tube 5-glandular 

 within. Corolla cylindric below, expanded into a narrowly campanulate throat, 

 the limb 5-lobed, somewhat spreading. Anthers appendaged at the base, partly 

 adherent to the stigma. Fruit of '2 long, linear follicles. Seeds narrow. 



