Jennings: Contribution to Botany of Isle of Pines. 271 

 696. Morinda Roioc LiauEeus. 



Morhida Roioc Linn^us. Species Plantarum, I, Ed. I, 1753, p. 176. 



A clambering shrub resembling a Lonicera, on side of ridge at 

 Bibijagua, May 7, 1910, 0. E. Jennings, No. 125; in everglade meadow 

 at mouth of Nuevas River, May 16, 1910, 0. E. Jennings, No. 285; 

 in swampy ground along river south of Nueva Gerona, May 12, 1910, 

 0. E. Jennings, No. 2ij; shrubby, about ten feet in height, between 

 Bogarona and Caleta Grande, "South Coast," May 22, 1910, 0. E. 

 Jennings, No. $18; northern part of the island, Blain, No. 146 (Mills- 

 paugh); Pedernales Point, February 16, 1899, C. F. Millspaugh, No. 

 1411 (Millspaugh). General Distribution: Southern Florida, Greater 

 Antilles, and from Central America to Brazil. 



697. Diodia rigida Chamisso & Schlechtendal. 



Diodia rigida Chamisso & Schlechtendal, Linnaea, III, 1828, p. 341. 

 Spermacoce rigida Humboldt, Bonpland, & Kunth, Nova Genera et Species 

 Plantarum, III, 1818, p. 342. 



Near Nueva Gerona, December 26, 1903, A. H. Curtiss, No. 256. 



General Distribution: The West Indies and South America as far as 



Uruguay. 



698. Diodia ciliata Britton & Wilson, 



Diodia ciliata Britton & Wilson, in Britton, Studies of West Indian Plants, Bulle- 

 tin of the Torrey Botanical Club, XLIII, 1916, p. 467. 



"In white sand, vicinity of Los Indios {Britton &" Wilson 15347) " 

 Britton, /. c. This specimen was collected in the spring of 1916. 

 Other specimens, formerly identified by the writer as Diodia rigida, 

 but probably belonging rather to Diodia ciliata are as follows: Culti- 

 vated ground south of Nueva Gerona on Keenan's estate. May 9, 

 1910, 0. E. Jennings, No. 165; dry savanna south of Sante Fe, May 

 25, 1910, 0. E. Jennings, No. 542; near Nueva Gerona, June 12, 1912, 

 G. A. Link; and Los Indios, November 4, 1912, G. A. Link. This 

 species is known only from the Isle of Pines and is evidently mainly 

 limited to the areas of white sand and to dry portions of the savanna. 

 It is perhaps too closely related to Diodia rigida, if the writer properly 

 understands the two species. 



699. Diodia arenicola Britton & Wilson. 



Diodia arenicola Britton & Wilson, in Britton, Studies of West Indian Plants, 

 Bulletin of the Torrey Botanical Club, XLIII, 1916, p. 467. 



18 MARCH 21, 191 7. 



