Myrtaceae-Araliaceae. 
range, and on the vertical cliffs or pali on the windward side of the island. It 
certainly is quite distinct from the ordinary Ohia lehwa and can be distinguished 
from it at a glance by the deeply rugose small leaves. It is never a large tree, 
but only of about 10-15 feet in height or more often a shrub. Flowering, Koolau 
Mts. Punaluu, Nov. 14-21, 1908. no. 294, College of Hawaii Herbarium. 
Metrosideros macropus Hook. et Arn. 
Ohia lehua. 
METROSIDEROS MACROPUS Hook. et Arn. Bot. ee (1832) 83;—Endl. Fl. Suds. in 
Ann. Wien. Mus. (1836) 181, no. 1453. ;—Gray Bot. U.S. E. E. (1854) 564. t. 70;— 
Mann in Proc. Am, Acad. VII _ (1867) 166, et a Haw. Isl. (1867) 244;—Wawra 
in Flora (1873) 172;—Hbd. Fl. Haw. Isl. (1888) 127;—Del Cast, Ill. Fl. ‘Ths. Mar. 
a VI. (1890) 168;—Naz. in Engl. et Pr eee Pfizfam. IIT. 7. (1893) 87.—Nania 
macropus O. Kuntze Rev. Gen. Pl. (1891) 242;—Heller in Minnes. Bot. Stud. Bull. 
IX. (1897) 865. 
A well proportioned tree glabrous throughout; the branchlets angled; leaves ovate or 
ovate- ee coriaceous rather dull, acute at the base, copiously feather-veined; petioles 
2.5 to 5 em long usually margined, and standing nearly at right angles to the stem; 
eymes ‘isuiiat usually geminate, subsessile, iri Nant crowded, evolved from a 
to the middie: eapsul ryt sis included in the turbinate tube of the calyx, of which the 
lobes are persistent, free to the middle, three-valved, many seeded; seeds fusiform, subu- 
late, not much pointed. 
This species is peculiar to the Hawaiian Islands and differs from the cosmopoli- 
tan M. polymorpha in the long petioled leaves, large floral scales, and much 
larger flowers. It is a tree of considerable size and can be found in the ees 
tains of Oahu on the main Koolau range, as well as on Molokai and on Kaual. 
Hybrids of this and the cosmopolitan species can be met with wherever they 
occur together. 
ARALIACEAE. 
The family Araliaceae, which is chiefly tropical, consists of 51 genera and 
numerous species. In Polynesia it is represented by the genera Plerandra, Rey- 
noldsia, Meryta, and others ; while in Hawaii, the most northern islands of Poly- 
nesia, it has two endemic genera, Pterotropia and Cheirodendron, besides several 
species of Tetraplasandra, which now includes also Triplasandra, which genus 
has been merged into the former by Harms. The genus Tetraplasandra is not 
peculiar to the islands, as it has two species which occur outside of Hawaii, one 
in New Guinea and the other in Celebes. Reynoldsia, which is represented i 
Hawaii by one species, has also one species in the Society Islands and one 1? 
Samoa. 
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