FLORA OF THE HAWAIIAN ISLANDS. 165 



Stamens 8, filaments subulate or flattened, often quite short in the fer- 

 tile flowers. Hypogynous disk short, entire or eight-crenulate. Ovary 

 4-celle(i (the cells opposite the petals) 4-lobed, often umbilicate ; style 

 central ; stigma 4-lobed. Ovules 2 in each cell, hemitropous. Capsule 

 -t-parted, the cocci divaricate, loculicidally dehiscent. Seeds usually 

 2 in each cell, ovoid, with a shining, black testa. Embryo straight, in 

 fleshy albumen ; cotyledons oval. — Unarmed trees ; with a heavj' odor. 

 Leaves simple, entire, opposite or whorled, coriaceous, very veiny, the 

 veins uniting in a more or less distinct iutramarginal one. Flowers 

 axillary. 



A small genus, peculiar to the Hawaiian Islands (or perhaps one in the Samoau 

 Islands). 

 Leaves whorled; flowers fascicled in the axils ou short peduncles. 



Leaves petioled, entirely glabrous, 1. P. clusixfolia. 



Leaves petioled, pubescent beneath, 2. P. sapolxfolia. 



Leaves sessile by an auricled base, 3. P. auriculxfolia. 



Leaves opposite; branches glabrous. 



Leaves velvety-villous beneath ; coriaceous, i. P. Kavaiensis. 



Leaves glabrous ; rather thin, 5. P. anisata. 



Leaves glabrous, coriaceous, oblong, petioled, Q. P. oblongifolia. 



Leaves glabrous, coriaceous, orbicular, sessile, 1. P. rotundifolia. 



Leaves opposite ; branches hirsute-tomentose. 



Leaves oval or oblong, strongly reticulated and glabrous beneath, S. P. Sandwicensis. 



Leaves oval, beneath slightly hii-sute, 9. P. volcanica. 



1. P. CLUSi/EFOLiA Gray. {Enum. No. 66.) A small "tree, 20°, 

 more or less, high, as are all the species of the genus. Glabrous 

 throughout. Leaves verticillate in fours or threes, rarely opposite, co- 

 riaceous, obovate or obovate-obloug, obtuse or retuse, more or less 

 acute at the base, pale, 2' -3' or more long, 8" -20" wide; veins 

 straight and parallel. Flowers in axillary subsessile clusters, the short 

 pedicels becoming 2" - 4" long in fruit. Calyx lobes ovate, membrana- 

 ceous, obtuse, 1^" long. Petals ovate-lanceolate, 3" long, wax-colored. 

 Stamens shorter than the petals. Ovary glabrous, four-lobed, shorter 

 than the style which arises from its umbilicate apex : stigmas 4, thick 

 and short. Capsule obtusely 4-lobed, h.' or more in diameter. The thin 

 and papery endocarp glabrous -within. Seeds 1 - 2 in each cell, black 

 and shining, l^"-2" in diameter. 



Mountains behind Honolulu, and Kaala Mountains, Oahu. Windward slopes of 

 Mauna Kea, and district of Puna, Hawaii. 



2. P. SAPOT^FOLiA H. Mann. {Enum. No. 67.) The young naked 

 leaf-buds hirsute, as in all the species. Branches and inflorescence 

 glabrous. Leaves 4 in a whorl, elongated-oblong or spatulate-oblong, 

 chartaceous, 4' -9' long, 2' -3' wide, attenuated or somewhat obtuse at 

 the base, ou petioles li' long, villous-pubescent beneath, quite glab- 

 rous above. Flowers in axillai-y sessile clusters, the pedicels 2" -3" 



