Jennings: Contribution to Botany of Isle of Pines. 195 



Passijlora suberosa var. minima Masters, in Martius, Flora Brasiliensis, XIII 

 (I). 1872. p. 579- 



Near Caleta Grande, South Coast, May 22, 1910, 0. E. Jennings, 

 No. 525 (flowers yellow-green, unripe berries blue); also same locality 

 and date, No. ^^28 (fruits globose, yellowish, reaching one and one- 

 half inches in diameter; flowers yellow). General Distribution: From 

 southern Florida and the Bahamas, south through the West Indies 

 and South America as far as Argentina. 



An exceedingly polymorphous species, or, according to some 

 botanists, one of a group of closely related species. The synonymy 

 given above is based upon Urban's "Flora Portoricensis," {Symbolce 

 AntillancB, IV, 1910, p. 424). 



Family CARICACE^. 



483. Caiica cubensis Solms (?). 

 Carica cubensis Solms, in Martius, Flora Brasiliensis, XIII, 3, 1899, p. 177. 



Alongside of old stone wall at old marble quarry, east base of 

 Caballos Mts., May 9, 1910, 0. E. Jen?iings, No. 671. Identity 

 doubtful, possibly Carica Papaya. 



Family CACTACE^. Cact:. 



Key to the Species Enumerated. 



Stem more or less erect or becoming procumbent, consisting of flattened obovate 



joints 484. Opuntia Dillenii. 



Stems elect, cylindrical with 5-8 ridges or flutings; the tubercles on the ridges 



bearing slender spines up to 7-8 cm. long 485. Harrisia sp. 



Stems trailing or climbing, throwing out roots from their whole length. 

 Stems triangular-winged or very strongly three-fluted. 



486. Hylocereus triangularis. 

 Stems with five or more ridges or flutings. 



Spines on the tubercles only about 2-3 mm. long 488. Selenicereus sp. 



Spines up to 5 mm. long 487. Cephalocereus Bakeri. 



484. Opuntia Dillenii (Ker) Haworth. 



Cactus Dillenii Ker, Botanical Register, III, 1818, PI. 255. 



Opuntia Dillenii Haworth, Supplementum Plantarum Succulentarum, 1819, p. 79. 



Dry sandy fields near Bibijagua, May 7, 1910, 0. E. Jennings, No. 

 pp. General Distribution: Coasts of Florida, the Bermudas, a 

 number of the West Indian islands, and Vera Cruz. 



