Rutaceae. 
riety @. Hbd. with 7 to 5 leaflets, large, oblong, caudata-acuminate, rounded at 
the base and dotted as before, occurs in the woods of Hilo, on the Island of 
Hawaii. The writer is not acquainted with this variety. 
mop oes Kauaiense Gray. 
or Hea’e. 
(Paes 10; 325) 
XANTHOXYLUM KAUAIENSE Gray B U. S. E. E, (1854) 354;—H. Mann in Proce. 
Bost. Soc. Nat. Hist. X.. (1866) pone Proc. Am. Acad. VIL. (1867) 160, et Fl. 
Haw. Isl. Proce. Ess. Inst. (1869) 170;—Wawra in Flora ee 139;—Hbd. Fl. 
Haw. Isl. (1888) 73;— Del Cast. Ill. Fl. Ins, Mar. Pac. VI. (1890) 130.—Fagara 
kauaiensis Engler in ye et ——_ Pfizfam. III. 4. (1895) 
119. 
small = tree, about 6 to m high, with a straight trunk and a Nene round 
crown; aN or 3-fo liolate Gn the ee of East Maui, southern or ples f Mt. re ie- 
—— on pesrlston of 2.5 to 3.5 ¢ he leaflets ovate or oblong to 6 em long, 2 
e, subacumina ate, coriaceous es quite opaque, or with a fer nee dots oi 
the = artes car ee of = terminal one pranagmgre 4 but not always articu- 
late near the blade 16 mm, thos si the lateral ones 2 to 3 mm; panicles 1 to 4 
near se: base of the een branchlets 35 o 7 em long, he: ‘eeciecesest pedunele 12 to 20 
t w 
carpel sage with a aneee pees a stigma, rudimentary in the sterile reo “follicle 
on a stipe of 4 mm, oe Hillebr.) obovate, glabrous, faintly pitted and striate; seed 
solitary, 3 to 10 m 
The Kauai i e is a rather handsome tree with a beautiful round crown when 
growing in the open. It occurs most frequently at Kaholuamano, as well as 
at Halemanu, on the leeward side of Kauai, at an elevation of 3600 to 4000 feet, 
at the outskirts of the forest, which at this elevation is more of a dry nature and 
of a mixed type. It is quite common along stream beds in company with various 
species of Pelea, Yanthoxylum dipetalum var. y, Alphitonia excelsa, Cyanea lep- 
tostegia, Cryptocaria Mannii, Bobea Mannii, and Tetraplasandra Waimeae. 
he leaves of the Kauai trees of this species are all 5-foliolate, that is consisting 
of five leaflets, which are glabrous. The flowers of this species are fragrant; the 
wood is yellowish white. 
The writer collected several forms, nos. 2103, 5677, in the type locality, flow- 
ering only. 
On the Island of Maui on the eastern section, which is formed by the great 
mass of the largest extinct voleano, Mt. Haleakala, the writer found on its 
southern flank, on ancient, now wooded, aa lava flows, numerous trees belonging 
to this species. They differ, however, in some respects from the Kauai specimens 
in that the leaves are always three-foliolate and never five-foliolate, in being 
chartaceous instead of coriaceous, but otherwise exactly as in the specimens from 
Kauai. At Auahi, the name of the above-mentioned locality on Maui, the trees 
reach a handsome size and trunks of a foot and a half or even more in diameter 
are not uncommon, though growing never taller than 40 feet. The trees are 
quite numerous, especially on the southern border of Auahi, where the district 
of Kahikinui joins that of Kaupo; there the writer saw the finest specimens, 
which formed practically the sole tree-growth. On the northwestern slope of 
199 
