MALVACEAE. 175 



Hab. Oahu, Sandwich Islands; in marshes, near Honolulu. 



The specimens afford nothing of importance to add to the descrip- 

 tion given by Hooker and Arnott. The branches, petioles, and lower 

 surface of the leaves are velvety-canescent ; the former armed with 

 short setse rather than prickles : these are fragile and at length deci- 

 duous, leaving a persistent papillose base. The upper leaves are 

 slightly if at all lobed, and are mostly acute or acuminate. Pedun- 

 cles half or two-thirds of an inch long, stout, tomentose, and setose- 

 hispid. Involucel and calyx hispid ; the former of 10 or 12 filiform 

 divisions, all or most of them two-lobed at the apex; the latter 

 strongly ten-nerved, the lobes triangular-lanceolate, in fruit closed 

 over the capsule. Corolla "rose-colour;" the petals 3 inches long. 

 Capsule canescently hispid with appressed bristles, an inch long, 

 rather shorter than the persistent calyx. Seeds numerous, very 

 smooth. 



10. Hibiscus Brackenridgei, Sp. Nov. (Tab. 12.) 



H. fruticosus, glabellus; foliis longe petiolatis niembranaceis rotundatis 

 5—7-fidis, sinubus angustis, lobis grosse dentatis; fioribus breviter 

 pedunculatis axillaribus ad apicem caulis confertis; involucelli pliyllis 

 8 setaceo-subidatis integris rigidis calycem Jiispidissimum wquantibus; 

 capsxda sericeo-hispida, loculis k—b-spermis ; seminibus lepidotis. 



Hab. On a mountain in the west division of Maui, one of the Sand- 

 wich Islands. 



Stem shrubby (the height not recorded) ; the flowering branches 

 rather stout, glabrous, or when young scurfy-puberulent with the stel- 

 lular pubescence of this family, very leafy; the lower part tuberculate 

 with the approximated leaf-scars. Leaves crowded, on long petioles 

 (the longer petioles 3 or 4 inches in length, and exceeding the blade), 

 membranaceous in texture, nearly glabrous, rounded in outline and 

 subcordate, or with an angular sinus at the base, 5-7-ribbed, five-cleft 

 to the middle or deeper, or sometimes seven-cleft (when the two basal 

 lobes are smaller) ; the lobes separated by acute and very narrow 

 sinuses, somewhat ovate in form, acute or obtuse, veiny, unequally 



