GERANIACE^E. 



315 





branches pluribracteate. Flowers rather larger than those of Q. 

 cuneatum; the sepals mucronulate, ovate-oblong, sometimes tinged with 

 purple. "Petals white, with purple veins" Stamens, styles, &c., 

 nearly as in the preceding species. Seed minutely striate-reticulated 

 under a lens. 



Plate 30. — Geranium ovatifolium : branches, of the natural size. 

 Fig. 1. A sepal, inside view. 2. A petal. 3. Flower, from which 

 the calyx and corolla have been removed. 4. Calyx and fruit. 5. 

 A seed. — All the details enlarged. 



10. Geranium arboreum, Sp. Nov. (Tab. 31.) 



0. arbor escens, par ce pubescens ; foliis chartaceis vel membranaceis ovatis 

 seu ovalibus obtusis plerumque subcordatis argute serratis 7-nervatis 

 utrinque concoloribus ; peduncidis folio brevioribus uni-bifloris ; sepalis 

 aristato-acuminatis ; petalis rubris " superioribus cucullatis/' stylis 

 coalitis ultra rostrum longe productis. 



Hab. Eastern part of the island of Maui, Sandwich Islands; near 

 the upper border of the forest, at about the elevation of 6000 feet. 



An arborescent species ; the trunk becoming 4 inches or more in dia- 

 meter, and attaining the height of 6 to 12 feet ! Branchlets squarrose 

 with the persistent stipules; which are like those of the preceding 

 species, when young pubescent with line and soft hairs, as are the 

 leaves, peduncles, calyx, &c. Leaves chartaceous or membranaceous in 

 texture, ovate, or sometimes nearly oval, obtuse, rounded, and usually 

 subcordate at the base, sharply serrate almost down to the base with 

 mucronate teeth, about seven-nerved (the nerves sparingly branching, 

 especially the marginal ones), nearly of the same hue both sides, 

 softly pubescent, more or less glabrate with age, an inch to li inches 

 long, the larger ones over an inch in width. Petioles from 3 to 8 lines 

 long. Peduncles 1-2-ftowered, perhaps sometimes three-flowered, ter- 

 minating the branches, or opposite the leaves, from half an inch to an 

 inch in length, with one or more pairs of subulate bracts. Flowers 

 larger than in any of the cognate species, not unlike those of a Pelar- 

 gonium, but destitute of all traces of an adnate spur, and the stamens 



