AFRO-INDIAN REGIONS. 



425 



a shrub ; leaves alternate, ovate, subsessile ; flowers minute, in axillary tufts. " Waia- 

 lua, at the Western end of Oahu," Rich and Brackenridge. 

 Gen. incert. with Prunus-like leaves, (No. 1). "A tree, thirty feet high with the trunk 

 ten inches in diameter;" flowers minute, in long compound axillary racemes; calyx 

 5-leaved. Lower portion of the forest on Mauna Kea, "at the saw-mill" near Hilo, 

 Brackenridge. 



Ruppia (compare No. 1 Feejee Islands, United States, and Peru). In the artificial pools 



for making salt, near Honolulu. 

 Potamogeton (No. 1) ; the leaves all linear and grass-like : fr. capitate, the carpels not 



Planorbis-like. Taro-ponds, on Oahu and at the Northern base of Mauna Kea. 

 (No. 2) ; the upper leaves lanceolate-elliptic; Oahu. 



Halophila : compare (No. 1 Samoa to the Feejee Islands). Marine ; growing in sea- 

 water in front of Honolulu, and of Lahaina on Mnui. — Possibly a distinct species in 

 company, having linear leaves. 



(Liparis ?, No. 1); a congener of Malaxis liliifolia, and having a similar stem-bulb, which 

 seems to account for its becoming epidendric; for in the drier portions of the forest, 

 it grows often on trunks of trees, taking the place of the genuine epidendric Orchidacese ; 

 the stem taller than in M. liliifolia. Mountains behind Honolulu ; also, in the Puna 

 District on Hawaii; and elsewhere. 



Gen. Neottioid, (No. 6). Tenderly herbaceous ; flowers greenish. " Puna," Bracken- 

 ridge. — Apparently the same species, a foot high, with small green flowers, on the 

 mountains behind Honolulu. 



; seeming larger and stouter than the last; flowers green. "Puna," Bracken- 

 ridge. 



(No. 7). Tauai. — Old stems apparently of the same species, on the North flank 



of Mauna Haleakala, in a marshy spot at the elevation of about 6700 feet. 



Gen. near Neott., (No. 3) ; seeming a congener of Feejeean species. Six to eight inches 

 high; slightly pubescent; conspicuous yellow flowers. On the mountain-ridge behind 

 Honolulu. 



Dianella; compare (No. 1 Tahelti to the Feejee Islands). On Hawaii, and the other 

 islands ; in the environs of the Great Crater extending as far as the elevation of 6500 

 feet on Mauna Roa. 



Smilax (No. 4) ; smooth ; leaves ovate, reticulate on both sides ; large oblong and white ? 



Commelina (No. 1, compare Samoa to the Feejee Islands) ; blue-flowered. Abundantly 

 naturalized, abounding in half wild situations, and sometimes forming patches; intro- 

 duced by aboriginal settlers. 



Cocos nucifera, (bis Paumotuan coral-islands, and No. 1 Tropical America). Cultivated, 

 but not very abundantly, and of late years much neglected. Introduced by aboriginal 

 settlers. 



Pandanus (bis No. 1 Paumotuan to the Phoenix coral-islands, and the Feejeean Group). 

 On the Windward side of the islands, scattered singly in the same manner as on the 

 Leeward side of the Feejeean Group. Observed also under cultivation. 



Colocasia macrorhiza, (bis No. 1 Metia to the Feejee Islands). Said to have been care- 

 fully cultivated in former times; but of late years, much neglected. 



antiquorum, (No. 2, bis Metia to the Feejee Islands). Abundantly cultivated ; 



107 



