Jennings: Contribution to Botany of Isle of Pines. 225 



566. Urechites lutea (Linnaeus) Britton. 



Vinca lutea Linn^us, Centuria Plantarum, II, 1756, p. 12. 



Echites suberecta Jacquin, Enumeratio Plantarum Quas in Insulis Caribaeis Detexit, 



1760, p. 13. 

 Echites barbata Desvaux, Prodromus Plantarum Indiae Occidentalis, 1825, p. 30. 

 Urechites suberecta Mueller- Aargau, Linnsea, XXX, i860, p. 444. 

 Echites neriandra Grisebach, Flora of the British West Indian Islands, 1861, p. 



415- 

 Echites obovata Sesse & MogiNO, Flora Mexicana, Ed. II, 1894, p. 39. Not Nees. 

 Urechites lutea Britton, Bulletin of the New York Botanical Garden, V, 1907, 



p. 316. 



In low clearing one mile north of Nueva Gerona, May 8, 1910, 

 0. E. Jennings, No. 150; near Caleta Grande, "South Coast," May 22, 

 1910, O. E. Jennings, No. 46jb; summer of 1912, G. A. Link. General 

 Distribution: Southern Florida, the Bahamas, and the West Indies 

 quite generally. 



567. Forsteronia corymbosa (Jacquin) G. F. W. Me^'er. 



Echites corymbosa Jacquin, Enumeratio Plantarum Quas in Insulis Caribaeia 



Detexit, 1760, p. 13. 

 Forsteronia corymbosa G. F. W. Meyer, Piimitiae Florae Essequeboensis, 181S. 

 P- 134- 



Northern part of the island, Blain, No. gj (Millspaugh). General 

 Distribution: Cuba, the Isle of Pines, Hispaniola, Porto Rico, and 

 Guiana. 



Family ASCLEPIADACEiE. 

 Key to the Species Enumerated. 



Leaves oblanceolate to obovate or oblong, 4 cm. or more long; vines; pollinia erects 



Leaves about 4 cm. long; corolla about 4 mm. long 575. Marsdenia clausa.^ 



The largest leaves 10 cm. long; corolla about 8 mm. long. 



576. Marsdenia umbellata. 

 Leaves smaller or linear, or else not vines; pollinia pendulous. 

 Erect herbs; corona simple (Asclepias). 



Corolla white 568. Asclepias nivea. 



Corolla deep purple, inner parts yellow 569. Asclepias Curassavica, 



Twining vines; corona simple. 



Corolla lobes pubescent inside; corona lobes entire. 



Leaves narrowly linear; pedicels and peduncles glabrous. 



570. Metastelma linearifolium. 

 Leaves narrowly oblong or lance-oblong; pedicels and peduncles puberu- 



lent 571. Metastelma hamatum. 



Corolla lobes glabrous inside; corona lobes slightly notched at apex. 



572. Seutera palustris. 



