Rutaceae. 



dull, glabrous above, pubescent to hirsute underneath in the young leaves, pubescent 

 along the prominent reddish midrib, the marginal nerve close to the edge and continuous 

 6 to 8 cm long, 5 to 7 cm wide, on petioles of 15 to 20 mm; panicles hirsute in the axils of 

 the leaves. 6 to 15 flowered; male flowers: sepals ovate acute, 3 mm, petals little longer, 

 stamens of unequal length some as long as the petals, anthers ovoid, ovary hirsute; female 

 flowers: stamens rudimentary, half the height of the ovary, the latter 3 mm high, pubes- 

 cent, deeply parted, style filiform, 1.5 mm, with a bluntly 4-lobed stigma, the lobes thick; 

 capsule not known. 



This small stunted tree is peculiar to the summits of Puu Kukui, West Maui, 

 and to the summit of Mt, Waileale, Kauai, where it grows on the borders of the 

 great swampy plateau and in little gulches of the summit swamp proper. 



The writer collected specimens of this tree on West Maui, Puu Kukui elevation 

 5700 feet, flowering August 21, 1910, in company with Mr. G. Hammond, no. 

 815-i; also on the edge of Honokawai Gulch at 4300 feet, flowering August 24, 

 1910, no. 8184. 



On the summit of Kauai, Mt. Waialeale, the writer collected this species flow- 

 ering on September 24, 1909, no. 4987, and again flowering October 20, 1911, no. 

 8880. The plants from this latter locality have the leaves from orbicular to ovate 

 and even oblong on the same branch ; however, they do not differ in other respects 

 from those on West Maui, with the exception that they are shrubs on Waialeale, 

 Kauai. 



* 



Pelea kauaiensis Mann. 

 Pilo ula. 



PELEA KAUAIENSIS Mann in Proc. Bost. Soc. Nat. Hist. X. (1866) 313, et Proc. Am. 

 Acad. VII. (1867) 158, et Fl. Haw. Isl. Proc. Ess. Inst. V. (1867) 166; Hbd. Fl. 

 Haw. Isl. (1888) 64. Pelea cruciata Heller PI. Haw. Isl. Minn. Bot. Stud. IX. 

 (1897) 839, pi. 48. Evodia Kavaiensis Drake Del Cast. 111. Fl. Ins. Mar. Pac. 

 VI. (1890) 132. 



Leaves opposite, ovate or elliptico-oblong, 10 to 22 cm long, 5 to 10 cm wide, thick 

 coriaceous, (and not chartaceous) rounded or bluntly acute or emarginate at the apex, 

 giadually tapering into a villous angular petiole of 2.5 to 3.5 cm, the marginal nerve re- 

 mote from the edge, arched, uniting the secondary veins, which are parallel and almost 

 at right angles to the midrib, pubescent above, especially along the impressed midrib, 

 villous underneath, velvety, especially thick on the prominent midrib; finely reticulated 

 on both sides; flowers single, 2 to 5 in a cluster, borne on slender pubescent pedicels 

 of 2 mm; sepals ovate, rounded, broader than high, with subciliate margins; petals some- 

 what longer, oblong-ovate, the apices incurved, thin, glabrous, valvate, about o mm long, 

 anthers rudimentary in the female flowers, of the height of the glabrous ovary; style 

 filiform, nearly 2 mm, with an obtusely 4-lobed stigma; capsule glabrous, 15 to 30 mm in 

 diameter deeply four parted, the cocci thick in the full grown fruits, one to two seeded, 

 the cocci elongate, one or two often abortive. 



The Pilo ula is a small tree, reaching a height of 15 feet, and has rather stout 

 villous branches. Its trunk is short and only a few (6 to 8) inches in diameter. 

 It inhabits the high central plateau of Kauai in the gray swampy, loamy soil near 

 Kaholuamano, especially in the forests bordering the bog Lehua Makanoe. It 

 grows in company with several species of Pelea, Wikstroemia sandwicensis var. 

 furcata, Platydesma campamilatum, etc. It is not uncommon also at Halemanu 

 above Makaweli. Heller in his "Plants of the Hawaiian Islands" described it 

 as a new species "Pelea cruciata" and remarks as follows: "Mann's description 



225 

 15 



