Jennings: Contribution to Botany of Isle of Pines. 167 



in pine-barrens east of Los Indios, May i8, 1910, 0. E. Jennings, 

 No. 3S7> Santa Fe, May 26, 1910, 0. E. Jennings, No. 684. General 

 Distribution: From the Gulf States to Mexico, the West Indies, and 

 tropical America generally. 



401. Chamaesyce camaguayensis Millspaugh. 



ChamcBsyce camaguayensis Millspaugh, Field Columbian Museum, Bot. Ser., II, 

 1914, pp. 392-393- 



Field near Nueva Gerona, May 5, 1910. 0. E. Jennings, No. 608. 

 General Distribution: Cuba and the Isle of Pines. 



402. Chamaescye buxifolia (Lamarck) Small. 



Euphorbia buxifolia Lamarck, Encyclopedic Methodique, Botanique, II, 1786, 



p. 421. 

 Chamcesyce buxifolia Small, Flora of the Southeastern U. S., 1903- P- 712. 



On sandy beach at Bibijagua, May 7, 1910, 0. E. Jennings, Nos. 



77, 78a; on coralline beach at Caleta Grande, South Coast, May 22, 



1910, 0. E. Jemiings, No. 510; February 16, 1899, Millspaugh, No. 



1432 (Millspaugh); 1831, A. H. Lanier, (A. Richard, in Sagra.) 



General Distribution: On maritime sands, Florida, the Bahamas, 



and the tropical coasts of the Gulf of Mexico and the Caribbean Sea 



generally. 



403. Chamaesyce Jenningsii Millspaugh. 



Chamcesyce Jenningsii Millspaugh, in Britton, Studies of West Indian Plants, 

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



Near Bibijagua, along the shore. May 7, 1910, 0. E. Jennings, 

 No. 621. Type in the Herbarium of the Carnegie Museum; also in 

 coastal sands at Bibijagua, spring of 1916, Britton & Wilson, No. 

 14, 6go. 



404. Tithymalus trichotomus (Kunth) Klotzsch & Garcke. 



Euphorbia trichotoma Kunth, in Nova Gengra et Species Plantarum, II, 1817, p. 60. 

 Tithymalus trichotomus Klotzsch & Garcke, Linne's Naturliche Pflanzenklasse 

 Tricoccae, i860, p. 81. 



Near Caleta Grande, "South Coast," on coralline sand May 22, 

 1 9 10, 0. E. Jennings, No. 4gg. General Distribution: On coastal 

 sands, southern Florida, the Bahamas, Cuba, the Isle of Pines, 

 Cayman Islands, and the shores of Mexico. 



