ASCLEPIADACEAE. 343 



4. Metastelma inaguense Vail, Bull. N. Y. Bot. Gard. 4: 142. 1906. 



A glabrous vine. Stems slender, terete; leaves 2-4 cm. long, obovate, 

 oblong-obovate or linear-obovate to linear-oblanceolate, obtuse, rounded and 

 apiculate at the apex, tapering to a short petiole (or when linear-lanceolate 

 acute at each end); cymes short-peduneled; calyx-segments ovate, obtuse, 

 glabrous; corolla deeply 5-parted, the segments 3-3.5 mm. long, oblong or 

 linear-oblong, obtuse, glabrous outside, papillose-puberulent except in the center 

 and towards the base within; corona-segments subulate, acute. 



Scrub-lands, snntl-dunes and white-lands. Conception Island, Watling's Is- 

 land and Inagua. Endemic. Inagua Metastelma. 



5. Metastelma linearifolium A. Eich. in Sagra, Hist. Cub. 11: 96. 1850. 



A very slender glabrous vine, 3-10 dm. long. Leaves narrowly linear, 2-4 

 cm. long, 1-1.5 mm. wide^ acute, the petioles 1-2 mm. long; cymes umbel-like, 

 several-flowered, short-peduncled, the flowers short-pedicelled; calyx-segments 

 ovate, obtuse; corolla white, campanulate, about 3 mm. long, deeply 5-lobed, 

 the lobes oblong, obtuse, white-villous on the inner side; corona-segments about 

 half as long as the nearly sessile gyhostegium ; follicles about 5 cm. long. 



Pine-lands, Great Bahama, at Eight Mile Rocks : — Cuba. Narrow-lb.\ved 

 Metastelma. 



6. Metastelma barbatum Northrop, Mem. Torr. Bot. Club 12: 58. 1902. 



A slender glabrous vine, 1 m. long or less. Leaves linear, linear-lanceolate, 

 or linear-oblong, 1-3.5 cm. long, acute or obtuse and cuspidate at the apex, 

 obtuse at the base, the petioles 2-4 mm. long; cymes few-several-flowered, 

 short-peduncled; pedicels 1-3 mm. long; calyx-lobes ovate, obtuse; corolla 

 greenish-white, deeply 5-eleft, the lobes oblong-lanceolate, obtuse, densely vil- 

 lous within; corona-segments ligulate, about as long as the gynostegium; 

 follicles slender, 3-4 cm. long. 



Borders of brackish marshes and savannas, coppices and pine-lands, Great Ba- 

 hama, Andros and New Providence. Endemic. 



7. Metastelma Eggersii iSehltr. in Urban, Symb. Ant. 1: 258. 1899. 



A rather stout vine, sometimes 2 m. long, the branches glabrous or densely 

 puberulent, often flexuous, somewhat woody. Leaves oblong-spatulate to obo- 

 vate, 0.7-1.5 cm. long, obtuse or retuse at the apex,^ narrowed at the base, 

 glabrous, subcoriaceous, usually fascicled, the midvein distinct, the lateral 

 venation obscure, the petioles very short; flowers mostly solitary in the axils, 

 yellowish-green or whitish, the glabrous or puberulent pedicels about as long 

 as the calyx; calyx-lobes oblong, obtuse; corolla-lobes oblong^ obtuse, villous 

 within, 3—1 mm. long; corona-segments lanceolate; follicles 3-4 cm. long. 



White-lands and scrub-lands. Whale Cay, Eleuthera, Cat Island, Mariguana, 

 Atwood Cay, Great Ragged Island, Fortune Island, Castle Island, Crooked Island, 

 Caicos Islands, Grand Turk and Inagua. Endemic. Referred to by Dolley as Oxy- 

 petahim sp. Eggers' Metastelma. 



8. Metastelma palustre (Pursh) Schltr. in Urban, Symb. Ant, 1: 258. 1899. 



Ceropegia palustris Pursh, Fl. Am. Sept. 1: 184. 1814. 

 Lijonia maritima Ell. Bot. S. €. & Ga. 1: 316. 1817. 

 Seutera maritima Dene, in DC. Prodr. 8: 590. 1844. 

 Vincetoxicum palustre A. Gray, Syn. Fl. 2^: 102. 1878. 

 Lyonia palustris Small, Fl. Miami 149, 200. 1912. 



A slender glabrous vine, 5-10 dm. long. Leaves narrowly linear, acute, 

 short-petioled, 2-8 cm. long, 1.5-3 mm. wide; peduncles slender, mostly shorter 

 • than the leaves; cymes several-flowered; calyx 2-2.5 mm. long^ its lobes lance- 

 olate or ovate-lanceolate, acute; corolla purplish or greenish-white, about 8 



