FLORA OF THE HAWAIIAN ISLANDS. 137 



the calyx. Ovary minutely pubescent. Fruit subglobose, nearly gla- 

 brous; the carpels 6-12, li" long, slightly wrinkled, obtuse or very 

 short awned. 



In dry land on Oalm. Sandy Isthmus of Maui (where the decumbent form is very 

 abundant). Hawaii; Waimea, Kauai, and doubtless in other parts; rather common. Also 

 from several of the Pacific Islands, Hongkong, and coast of China. 



3. S. SERTUM Nutt. {Enum. No. 52.) Low and barely shrubby, 

 much branched. Branches, with petioles, peduncles, calyx, &c., barely 

 canescent with a minute pubescence. Leaves oval or subovate- oblong, 

 obtuse and rounded at both ends, finely crenulate, canescent beneath 

 with a minute and close pubescence, nearly glabrous above. Pe- 

 tioles two-thirds the length of the blade. Stipules setaceous. Pedun- 

 cles axillary and usually solitary, capillary, l'-2' long. Lobes of the 

 calyx ovate, very obtuse. Petals yellow, nearly twice the length of 

 the calyx, 5" - 6" long. Carpels about 8 in number, nearly glabrous, 

 abruptly tipped with two subulate-aristiform beaks, which are shorter 

 than the cell, and minutely hairy. 



Mountains behind Honolulu, Oalm. 



4. S. KHOMBIFOLIA Linn. (Enum. Xo. 54.) A perennial herb or 

 undershrub, very variable in size, l-3high; when erect, with ob- 

 long-lanceolate leaves 3' long, green above, and slightly hoary be- 

 neath ; sometimes much branched, and very spreading, with oblong or 

 almost ovate leaves an inch or two long, and very white beneath. Pe- 

 duncles much longer than the short petioles, jointed about the middle. 

 Flowers rather small, yellow. Lobes of the calyx broadly ovate, acute, 

 glabrous, 2" -3" long. Carpels about 10, with slender glabrous awns 

 about 1", or rarely awnless. 



In waste places. An introduced weed, now common throughout the tropics. 



3. ABUTILON Gsertn. 



Calyx without outer bracts, 5-lobed. Stamineal column divided at 

 the top into several filaments. Carpels 5 or more, in a ring round the 

 axis, eacb with several ovules, and, when ripe, united at the base, but 

 diverging at the top, and opening in valves. Style with as many 

 branches'as carpels. Stigmas terminal. Herbs or shrubs, with the 

 habit of Sida, from which they only differ in their carpels, and the 

 number of ovules and seeds. 



A considerable genus, spread over the tropical and subtropical regions of both Worlds, 

 but more especially in America. 



1. A. INCANUM Don. (Enum. JVo. 49.) Woody at the base, about 

 1 high, covered with a very fine and close velvety or canescent pubes- 

 cence. Stipules very small, filiform, deciduous. Leaves cordate ovate, 



COMMUNICATIONS ESSEX INST., VOL. V. 19 JULY, 1867. 



