138 MANN, 



acuminate or acute, or sometimes rounded, finely serrate, the lower 

 ones I'-li'long, on petioles one half their length; the upper ones 

 smaller. Peduncles mostly axillary and solitary, mostly longer than 

 the leaves, articulated near the apex. Flower 3" long. Calyx canes- 

 cent, 5-cleft to the middle, half as long as the yellow corolla, much 

 shorter than the capsule, spreading in fruit. Capsule cinereous- 

 tomentose, short-oblong, 5-carpellary, strongly 5-lobed, truncate at 

 the apex ; the carpels barely mucronulate at their obtuse tips, dehiscent 

 at the apex and down the dorsal suture, 3-seeded. Seeds globular, 

 pubescent, superposed. 



Coast of Oahu, near Honolulu and Diamond Hill. 



2. A. MENZIESII Seemann. (Enum. No. 50.) A small shrub about 

 2 (?) high, canescently tomentose. Leaves cordate, acuminate, 

 coarsely serrate, above green and with a stellate pubescence, below 

 canescently tomentose, 2' -3' long, on petioles longer than the blade. 

 Stipules minute. Peduncles axillary, solitary, shorter than the peti- 

 oles. Sepals partly joined, broadly ovate, acute. Corolla about 1' 

 long " purplish." Carpels 5, ovate-oblong, acuminate, hirsute; with 

 persistent placentae. Seeds 3 in each cell, hirsute. 



4. HIBISCUS Linn. 



Bractlets round the calyx several, either free or more or less uni- 

 ted into a lobed or toothed involucre. Calyx 5-lobed or 5-toothed. 

 Stamineal column bearing several short filaments below the summit. 

 Carpels 5, with several ovules in each, united into a single 5-celled 

 ovary. Style 5-lobed at the top, or nearly entire, with terminal stig- 

 mas. Capsule opening loculicidally in 5 valves. Herbs, shrubs, or 

 trees. Flowers often large and showy. A considerable genus, widely 

 spread over the warmer regions of the globe. 



1. HIBISCUS proper. Bractlets almost entirely free from one ano- 

 ther and from the calyx. 



Leaves ovate-cordate, slightly lobed, 1. H. Youngianus. 



Leaves ovate-cordate, deeply lobed, 2. H. Brackenridgii. 



Leaves small, ovate, acute, entire, 3. H. Arnotlianus. 



2. PARITIUM. Bractlets (10 - 12) united Into a more or less deeply 

 saucer-shaped Involucre, surrounding the base of the calyx. 

 Leaves ovate-cordate, acuminate, entire, 4. H. tiliaceut. 



1. H. YOUNGIANUS Gaud. (Enum. No. 46.) Erect and shrubby. 

 The branches, petioles, involucre, calyx, and fruit are densely covered 

 with short setae, among the bases of which, as also upon the leaves, is 

 a velvety canesceuce ; the setae are at length in good part deciduous, 

 leaving a persistent papillose base. Leaves ovate, cordate, 4 - 5-lobed. 

 angles obtuse, irregularly dentate, acute, or acuminate, below veluti- 



