230 Annals of the Carnegie Museum. 



579. Evolvulus Wrightii House. 



EvolvuUis Wrightii House, Bulletin of the Torrey Botanical Club, XXXIII, 1906, 

 PP- 316-317. 



Near Nueva Gerona, March 13, 1904, A. H. Curtiss, No. 40Q. 

 General Distribution: Pinar del Rio, Cuba, and the Isle of Pines. 



580. Evolvulus arenicola Britton & Wilson. 



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

 VIII, Bulletin of the Torrey Botanical Club, XLIII, 1916, p. 466. 



White sand in the vicinity of Los Indios, spring of 1916, Britton & 

 Wilson, 14, igo (Britton). General Distribution: Los Indios, Isle of 

 Pines. 



According to the description this is a diminutive perennial sending 

 up from a slender woody root one or a few short (2-5 cm.) ascending 

 or nearly prostrate stems. Leaves ovate to elliptic, 9-15 mm. long, 

 mostly obtuse or rounded at both ends. Flowers one or two, at the 

 ends of the branches, with a white rotate corolla 9-12 mm. broad. 

 For more complete description see Britton, /. c. 



581. Exogonium microdactylum variety integrifolium House. 



Rxogonium microdactylum var. integrifolium House, Bulletin of the Torrey Botani- 

 cal Club, XXXV, 1908, p. 103. 



In pine-barrens east of Los Indios, May 18, 1910, 0. E. Jennings, 



^0. J59, and May 19, No. j8q, in gravelly soil one mile north of Los 



Indios. General Distribution: Florida, the Bahamas, Cuba, and the 



Isle of Pines. 



582. Exogonium Wrightii House. 



Ipomcea racemosa Grisebach, Catalogus Plantarum Cubensium, 1866, p. 205. 



Not Poiret, 1816. 

 Exogonium, Wrightii House, Bulletin of the Torrey Botanical Club, XXXV, 1908, 



p. 99, PI. I, fig. d. 



House, /. c, gives the following as to distribution: "Cuba: 'N. 

 Sophie [Isle of Pines], climbing to tops of tall trees,' C. Wright 1650, 

 1859-60. (Type in the Gray Herbarium.)" The species is known 

 from no other locality. 



The writer is including this species in the Isle of Pines list only 

 with considerable doubt. The "N. Sophie" [Nouvelle Sophie] referred 

 to rather frequently in Wright's correspondence is probably the 

 station from which this specimen came, and, if so, the record refers 

 to Cuba and not to the Isle of Pines. See "A Summary of Charles 



