Rubiaceae. 



The Koi is a tree 15 to 20 feet in height with a trunk of a few inches in dia- 

 meter. It is like the Olena peculiar to the Island of Kauai, where it occurs in 

 the forests of Kaholuamano. The name Pilo, by which all other Hawaiian 

 Coprosmas are known on the other islands, is applied on Kauai to a species of 

 Pelea and to one of Platydesma. 



Coprosma Waimeae Wawra. 

 Olena. 



COPROSMA WAIMEAE Wawra in Flora (1874) 327; Heller PI. Haw. Isl. (1897) 895 

 C. foliosa Hbd. Fl. Haw. Isl. (1888) 186, in part 



Leaves elliptical-oblong, acuminate at both ends or shortly acute, on petioles of 5 mm, 

 glabrous; stipules broadly triangular or ovate and long or caudately acuminate; drupes 

 orange colored, largest of all Hawaiian species, ovate, 12x8 mm, crowned by the 

 calycine teeth. 



This species, which Hillebrand incorrectly referred to C. foliosa, is certainly 

 distinct from all the other Hawaiian species, and as Wawra remarked in a foot- 

 note, has the largest fruits of all Hawaiian Coprosmas. It is a small tree and 

 occurs in the forests of Halemanu and Kaholuamano, Kauai, above Kekaha and 

 Waimea at an elevation of 3600-4000 feet. 



The native name, Olena, meaning yellow, is derived from the yellow r color of 

 the wood. 



Coprosma longifolia Gray. 



Pilo. 

 (Plate 193.) 



COPROSMA LONGIFOLIA Gray in Proc. Am. Acad. IV. (1860) 48; Mann Proc. Am. 

 Acad. VII. (1867) 169; Wawra in Flora (1874) 324; Hbd. Fl. Haw. Isl. (1888) 

 188; Del Cast. 111. Fl. Ins. Mar. Pac. VI (1890) 200; Heller PI. Haw. Isl. 



(1897) 895. 



Leaves ternate, elliptico-oblong or lanceolate of even breadth in their greatest length, 

 6.5 to 10 cm long, 1.5 to 2.5 cm wide, on petioles of 12 to 18 mm. acute at both ends, char- 

 taceous, stipules thin 6 to 12 mm, connate; flowers 6 to 15, glomerate at the end of 

 axillary peduncles of 6 to 10 mm; bracts 6 mm, sometimes foliaceous; male flowers: calyx 

 2 mm, 5 to 8 toothed, corolla 6 to 8 mm, with 5 to 8 lobes; stamens long exserted 12 to 

 16 mm; female flowers: calyx urceolate, 4 mm, corolla 4 mm, with revolute lobes; styles 

 8 to 12 mm; drupes ellipsoidal 6 to 8 mm long, reddish, tipped with the short calycine 

 teeth. 



On the lower slopes of Mt. Konahuanui, Oahu, at an elevation of 2500 feet or 

 higher, this very distinct species occurs as a tree 15 feet or more high with a 

 short trunk of several inches in diameter. It is quite striking in its appearance, 

 especially during the early winter months when the tree is loaded with the 

 bright reddish drupes or fruits, contrasted with the graceful foliage. According 

 to Hillebrand the species occurs on Kauai, besides Oahu, but was only seen on the 

 latter island by the writer, where it is plentiful on the whole Koolau mountain 

 range. 



465 



3O 



