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 aac Pl, Haw. Isl. (1897) 895.— 
C. foliosa Hbd. ar Haw. Isl. uses 186, in par 
Leaves elliptical-oblong, acuminate at both ends or shortly acute, on petioles of 5 mm 
glabrous; stipules broadly triangular or ovate and long or eaudately 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 
oceurs 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 color of 
the wood. 
Coprosma longifolia Gray. 
Pilo. 
(Plate 193.) 
ea LONGIFOLIA Gray in Proe. Am, Acad. IV. (1860) oo —Mann Proe. 
ead. VII. (1867) 169; D Ncwin in Flora Sie) 324;—Hb Fl. Haw. Isl. gia 
ee Cast. 211. Fi. Ins. Mar. Pace. VI (1890) 200; oe Heller Pl. Haw. Isl 
pt tee 
Leaves sda os, peg or lanceolate of even iia th in their cada — 
6.5 to 10 em hinge 5 to 2.5 em wide, on petioles of 12 to 18 mm, acute at both ends, 
taceous, stipules thin - = 32 mm, connate; flowers 6. ie 15, glomerate at ra as "ee 
senor peduncles of 6 to 10 mm; bracts 6 mm, sometimes foliaceous; male flowers: calyx 
2 mm, 5 to 8 toothed, bores 6 to 8 mm, with "5 to 8 lobes; stamens long exserted 12 to 
16 m mm; female flowers: calyx urceolate, ‘4 mm, corolla 4 mm, with revolute lobes; styles 
8 to 12 mm; drupes ellipsoidal 6 to 8 mm cia shor tipped with the short calycine 
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 
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