FLOKA OF THE HAWAIIAN ISLANDS. 181 



seed nearly globular. Herbs, undershrubs, or slender -shrubs, more 

 or less hoary, or sprinkled with appressed hairs, fixed by their centre. 

 Leaves usually pinnate, with opposite or alternate leaflets and a ter- 

 minal odd one, sometimes reduced to 3 or 1, and in a few African 

 species with 3-5 digitate leaflets. Stipules small; stipellffi occur 

 occasionally. Flowers usually red or purple, in axillary spikes or 

 racemes. 



A large genus, widely spread over tropical Asia and America, but still more abundant 

 in tropical and Southern Africa, with a few Australian species. 



1. I. ANIL Linn. (Enum. No. 98.) A shrub, 3 -5 high,. more 

 or less hoary, with appressed hairs. Leaflets in the more luxuriant 

 specimens of 8-9 pairs, besides the terminal one, and fully 1' long, 

 in drier situations often 2-4 pairs, and not above 6" long, all oppo- 

 site, from obovate to oblong, glabrous or nearly so on the upper side, 

 hoary beneath. Flowers scarcely above 2" long, on very short re- 

 curved pedicels, in short, dense, almost sessile racemes. Calyx cam- 

 panulate, with short, broad teeth. Pods about ' long, usually many 

 together and much incurved, slightly 4-edged, with 6-10 seeds. 



A very common weed, though introduced but a few years since. It Is supposed to be 

 of American origin, but has been so much cultivated for Indigo, that it is diffused through- 

 out the tropics, and it Is difficult to fix its native country. 



TBIBE III. OALEOE^E. 



Herbs, not twining, or shrubs, trees, or woody climbers. Leaves pinnate, often stipel- 

 late. Racemes axillary or terminal. Stamens monadelphous or dladelphous, the anthers 

 obtuse. Ovary with 2 or more ovules. Pod opening in 2 valves. 



3. TEPHROSIA Pers. [Auhuhu.] 



Calyx 5-toothed. Standard broad, as long as or longer than the 

 obtuse keel. Upper stamen free at the very base, but adhering to the 

 sheath of the others in the middle. Style curved, glabrous, excepting 

 sometimes a tuft of hairs on the terminal stigma. Pod linear, com- 

 pressed, 2-valved, without partitions between the seeds. Herbs, un- 

 dershrubs, or rarely shrubs. Leaves pinnate, with several pairs of 

 opposite leaflets, and a terminal odd one, or very rarely reduced to a 

 single leaflet ; the veins of the leaflets numerous, parallel and oblique. 

 Eacemes terminal, leaf-opposed or in the upper axils, often leafy at 

 the base. Flowers 2 to 6 together at each bract. 



A considerable genus, widely spread over the tropical regions of the globe. 



1. T. PISCATORIA Pers. (Enum. No. 99.) Stock perennial and 

 often woody, with slender but stiff decumbent, ascending, or even 

 erect stems, 1 - 2 high, with spreading branches ; the younger shoots 

 often silky-hoary, becoming at length nearly glabrous. Leaflets in 

 several rather distant pairs, cuneate oblong or linear, about i' long. 



