138 MANN, 



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

 ones l'-l.^'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, o-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 oi' 5-toothed. 

 Stamineal column bearing sevex-al 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. 



S 1. Hibiscus proper. Bractlets almost entirely free from one ano- 

 ther and from the calyx. 



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



Leaves ovate-cordate, deeply lobed, 1. II. Brackenridgii. 



Leaves small, ovate, acute, entire, o. H. ArnoUianus. 



§ 2. Paeitium. Bractlets (10- 12) united into a more or less deeply 

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

 Leaves ovate-cordate, acuminate, entire, i. H. tiliaceus. 



1. H. Youngianus Gaud. {Emim. Xo. 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 canescence ; 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- 



