224 Annals of the Carnegie Museum. 



562. Rhabdadenia paludosa (Vahl) Miers. 



Echites paludosa Vahl, Eclogae Americanse, II, 1798, p. 19. 



Rhabdadenia paludosa Miers, Apocynaceae of South America, 1878, p. 119. 



Northern part of the island, Blain, No. 7S (Millspaugh) ; in swampy 

 place along arroyo at Nueva Gerona, May 12, 1910, 0. E. Jennings, 

 No. 20S; Along river bank at Los Indios, May 21, 1910, 0. E. Jen- 

 nings, No. 454. General Distribution: Southern Florida, the Ba- 

 hamas, Cuba, the Isle of Pines, Jamaica, Porto Rico, Hispaniola, 

 Central America, and Colombia (Urban). 



563. Rhabdadenia biflora (Jacquin) Mueller-Aargau. 



Echites biflora Jacquin, Enumeratio Plantarum Quas in Insulis Caribseis Detexit, 



1760, p. 13. 

 Rhabdadenia biflora Mueller-Aargau, in Martius, Flora Brasiliensis, VI (i)* 



i860, p. 175. 



None uf the specimens from the Isle of Pines appear to be the true 

 Rhabdadenia biflora, with the relatively much shorter calyx-lobes, 

 but the specimens listed under R. paludosa are somewhat inter- 

 mediate and it is probable that specimens could be found on the island 

 representing the species. The differences between these two species 

 are too insignificant or are too unreliable to be depended upon. 

 General Distribution: Porto Rico, and from Guadeloupe through the 

 Windward Islands to Venezuela, Guiana, and Brazil (Urban). 



564. Rhabdadenia Sagraei (A. DeCandolle) Mueller-Aargau. 



Echites Sagrcei A. DeCandolle, Prodromus Systematis Naturalis Regni Vegeta- 



bilis, VIII, 1844, p. 450. 

 Rhabdadenia Sagrcei Mueller-Aargau, in Grisebach, Flora of the British West 



Indian Islands, 1861, p. 415. 



Along the marshy border of a pond about two miles east of Nueva 

 Gerona, May 6, 1910, 0. E. Jennings, No. 44; south of Sante Fe, 

 May 25, 1910, 0. E. Jennings, No. 618; Nueva Gerona, May 31, 1912, 

 G. A. Link; Los Indios, November 4, 1912, G. A. Link. General 

 Distribution: Sandy thickets, Pine Key, Florida (Small), Cuba, and 

 the Isle of Pines. 



565. Rhabdadenia cubensis Mueller-Aargau. 



Rhabdadenia cubensis Mueller-Aargau, Linnaea, XXX, 1859-1860, p. 435. 

 Echites cubensis Grisebach, Catalogus Plantarum Cubensium, 1866, p. 172. 



Near Nueva Gerona, March 10 and April 2, 1904, A. JL Ciirtiss, 

 No. 3QS. General Distribution: Cuba and the Isle of Pines. 



