Jennings: Contribution to Botany of Isle of Pines. 157 



J41 (flowers greenish-white). General Distribution: Western Cuba 

 and the Isle of Pines. 



365. Polygala uncinata Wright. 



Polygala uncinata (Wright, MSS.) Millspaugh, Field Columbian Museum, Botani- 

 cal Series, I, 1900, p. 429. 



Based on specimens collected in the northern part of the island, 

 by Blain, Nos. 16, 160; on white sand, pine-barrens near Los Indios, 

 May 17, 1910, 0. E. Jennings, No. 317; same locality, May 18, No. 344; 

 Los Indios, November 4, 1912, G. A. Link. General Distribution: 

 Isle of Pines. 



From the descriptions and from such specimens as he has seen, the 

 writer must claim inability to distinguish this species from Polygala 

 glochidiata Humboldt, Bonpland, & Kunth, a species reported as 

 widely distributed from Mexico through continental tropical America 

 to Brazil, with a few localities reported in the West Indies. The fully 

 ripened seeds of the plants from the Isle of Pines, are "obovate- 

 elliptic" (Wright) to almost perfectly spherical, the apex apiculate, 

 the surface dark brown and somewhat shining, the hairs being white, 

 erect, and hooked at the tip. The seeds are about 0.7-0.8 mm. in 

 diameter. Flowers are light rose-purple in color. 



366. Polygala gracilis Humboldt, Bonpland, & Kunth. 



Polygala gracilis Humboldt, Bonpland, & Kunth, Nova Genera et Species 

 Plantarum, V, 1821, p. 401. 



Near Nueva Gerona, February 19, 1904, A. H. Ciirtiss, No. 358. 

 General Distribution: Cuba, the Isle of Pines, Mexico, Costa Rica, 

 Colombia, and Venezuela. 



These specimens are too near Polygala paniculata Linnaeus, one of 

 the four plants on the sheet being well branched. As now understood 

 the writer considers these two species to be practically synonymous. 



Family DICHAPETALACE.E. 

 367. Tapura obovata Britton & Wilson. 



Tapura obovata Britton & Wilson, in Britton, Studies of West Indian Plants, 

 Bulletin of the Torrey Botanical Club, XLIII, 1916, p. 465. 

 "Savanna, Vivijagua [Bibijagua] {Britton & Wilson 15607, type); 



coastal plain, San Juan {Britton &• Wilson 15524)" (Britton, /. c). 



