Heller : plants of the Hawaiian islands. 861 



Another troublesome member is No. 2780, collected on the 

 plateau above Waimea, at an elevation of 4000 feet. It is a 

 small tree, growing well back in the forest, on the edge of a 

 ravine. The leaves are usually over two inches in length, 

 elliptical-ovate, thick and leathery, very glaucous above, and 

 pale green underneath. The fruit is very large, almost a half 

 inch in length, and a quarter inch in diameter at the thickest 

 part. It is referable rather to oahuensis than to elongata, but 

 is probably distinct from either. 



The following are the remaining Hawaiian species: 



Diplomorpha hicornuta (Hillebr.) 



Wikstroemia bicornuta Hillebr. Fl. Haw. Is. 387. 1888. 



Diplomorpha buxifolia (A. Gray) 



Wikstroemia buxifolia A. Gray, Seem. Journ. Bob. 3: 304. 1865. 



Diplomorpha hanalei (Wawra) 



Wikstroemia hanalei Wawra, Flora, (II) 33: 185. 1875. 



Diplomorpha phillyraefolia (A. Gray) 



Wikstroemia phyllreaefolia A. Gray, Seem. Journ. Bot. 3:304. 1865. 



Diplomorpha sandwicensis (Meisner) 



Wikstroemia sandwicensis Meisner, DC. Prod r. 14:545. 1856. 



Diplomorpha uva-urs,i (A. Gray) 



Wikstroemia uva-ursi A. Gray, Seem. Journ. Bot. 3: 304. 1865. 



Diplomorpha villosa (Hillebr.) 



Wikstroemia villosa Hillebr. Fl. Haw. Is. 386. 1888. 



LYTHRACEAE. 



LYTHRUM L. Sp. PI. 446. 1753. 



Lythrum maritimum H. B. K. Nov. Gen. et Sp. 6: 194. 1823. 



This species, if indeed the Hawaiian plant is L. mariiimum, 

 is usually found in the lower forest, or on the outskirts, in 

 damp, grassy places. Collected on the heights of Pauoa, back 

 of Honolulu, at elevations of 800 to 2000 feet. 



May (2329); original locality, "in litore Oceani Pacifici, prope 

 Patibilicam Peruvianorum." 



