Rutaceae. 



on the strength of the new material, the specific description is herewith enlarged. 

 It is one of our most interesting species of Pelea in that it has the greatest 

 number of flowers in its inflorescence, bearing often more than 200 flowers. It 

 belongs to the same group as Pelea cinerea and Pelea barbigera, though it is spe- 

 cifically very distinct from both. At Auahi, to which place this tree is peculiar, 

 it is associated with Alectryon macrococcus, Pterotropia dipyrena, Bobea Hookeri, 

 Alphitonia excelsa, Sideroxylon aualiiense, Antidesma pulvinatum, etc. 



Pelea Knudsenii Hbd. 



PELEA KNUDSENII Hbd. Fl. Haw. Isl. (1888) 70. Evodia Knudseni Drake Del Cast. 

 111. Fl. Ins. Mar. Pac. VI. (1890) 132. 



A tree about 10 in high, the young shoots and inflorescence covered with a gray 

 tomentum; leaves opposite, 12.5 to 15 cm long, 7.5 to 10 cm wide, on petioles of 5 to 6.5 cm, 

 ovate or ovate-oblong, cordate at the base, or the basal lobes connate, with the petiole 

 subpeltately inserted above the base, bluntish, glabrous above, pubescent underneath, the 

 midrib and nerves densely villous with a soft grayish wool, thin chartaceous, with the 

 marginal nerve in deep arches; flowers numerous 20 to 40, in a large pyramidal panicle 

 of 5-6.5 cm in length, with 3 to 4 pairs of divaricate branches, the stiff angular peduncle 

 about 24 mm, the ultimate pedicels very short, with the last bractlets close to the calyx; 

 bracts 8 to 6 mm; calyx and corolla villous externally, the sepals 6 mm; the oblong petals 

 scarcely longer; disk 8 lobed hairy; ovary sparsely pubescent. 



The plant was collected by Valdemar Knudsen of Kauai, for whom it was 

 named by Hillebrand. It is recorded as growing at an elevation of 1500 feet 

 back' of Waimea, Kauai, and is, of course, a dry district plant. It is not known 

 to the writer, who collected extensively in the above referred to locality, but 

 never met with this species. It is evidently closely related to the writer's Pelea 

 multiflora, which differs, however, from the foregoing in the exceedingly large 

 inflorescence, which is 15 cm long, in the 6 cm long peduncle, and in the number 

 of flowers, which is up to 200; the ovary in this species is glabrous. 



The capsule of P. Knudsenii is not known, but is unquestionably apocarpous, 

 under which latter heading it is placed in Hillebrand 's key to the species. 



Pelea barbigera (Gray) Hbd. 

 Uahe a Pele. 



PELEA BARBIGERA (Gray) Hbd. Fl. Haw. Isl. (1888) 70. Melicope barbigera Gray 

 Bot. TJ. S. E. E. (1854) 351, t. 39, fig. B; H. Mann Proc. Bost. Soc. Nat. Hist. 

 X. (1866) 316, et Proc. Am. Acad. VII. (1867) 159, et Fl. Haw. Isl. Proc. Ess. 

 Inst, V. (1867) 168. Melicope cinerea fm. barbigera Wawra in Flora (1873) 

 139. Evodia barbigera Drake Del Cast. 111. Fl. Ins. Mar. Pac. VI. (1890) 130. 



Leaves elliptical, oblong, 10 to 16 cm long, 5 to 6.5 cm wide, on petioles of 2.5 to 5 

 cm, contracting but obtuse at both ends, pale green, dull, not shining above, beneath 

 densely clothed, especially along the midrib, with a cobwebby wool, whk;h disappears 

 with age, chartaceous with faint nerves, the leaves all curved, the upper surface convex, 

 the lower concave; flowers 3 to 5 on a stiff angular gray tomentose peduncle of 20 to 24 

 tarn, the pedicels 2 to 6 mm long, and bracteolate at the middle, the bracts and bractlets 

 usually large for the genus, 8 to 6 mm; sepals and petals gray-tomentose, the former 

 ovate-acute, 3 to 4 mm, the latter 5 to 6 mm; ovary sparingly pubescent, with distinct 

 style and 4 short stigmatic branches; follicles discreet, one or another abortive, obovoid, 

 25 mm in diameter, glabrous, rather thin, concentrically striate, endocarp glabrous; one to 

 two seeded. 



235 



