878 MINNESOTA BOTANICAL STUDIES. 



RAUWOLFIA L. Sp. PI. 208. 1753. 



Rauwolfia saiidwicensis A. DC. Prodr. 8: 339. 1844. 



A small tree, with smooth, yellowish bark, and stiff, spread- 

 ing branches. It is rather common in the lower woods on the 

 lee side of Kauai. 



July 17 (2582). 



ASCLEPIADACEAE. 



ASCLEPIAS L. Sp PI. 214. 1753. 



Asclepias curassavica L. Sp PL 215. 1753. 



An introduced species, which is well established on Oahu 

 and Kauai. On the latter island it has found its way well up 

 into the lower forest, in open, grassy places. 



March to September (1950); original locality, "in Curassao." 



CONYOLVULACEAE. 



CRESSA L. Sp. PL 223. 1753. 

 Cressa truxillensis H. B. K. Nov. Gen. 3: 119. 1818. 



Collected at Pearl river, Oahu, "east of the inlet," as men- 

 tioned by Hillebrand. who, however, calls it Cressa cretica. It 

 is identical with specimens of G. truxillensis, collected in Peru 

 by the botanists of the U. S. Exploring Expedition. It is 

 plentiful along Pearl river, and was also collected on Molokai 

 by Remy. The anthers are violet. 



June 10 (2410); original locality, "in arenosis salsis Oceani 

 Pacifici, prope Truxillo Peruvianorum.*' 



JACQUE3IONTIA Choisy, Mem. Soc. Phys. Genev. 

 6:476. 1833. 



Jaeuuemontia saiidwicensis A. Gray, Proc. Am. Acad. 5:336. 

 1862. 



When growing in exposed situations, the plants of this spe- 

 cies are liable to be very small, erect and bushy, but under 

 more favorable conditions, they have stems two to three feet 

 long, which are prostrate and creeping. The pale blue corolla 

 is almost an inch in diameter. Collected on an ancient lava 

 flow beyond Diamond Head. Oahu. 



April 12 (2095). 



