FLORA OF THE HAWAIIAN ISLANDS. 189 



12. PHASEOLUS Linn. 



Calyx campanulate or nearly tubular, 5-toothed or lobed, rarely 4- 

 toothed by the union of the 2 upper ones. Standard orbicular, re- 

 curved or sometimes slightly twisted. Wings obovate or rarely ob- 

 long, equalling or longer than the standard, adhering above to the 

 keel, often twisted. Keel produced at the top into a long and spirally 

 twisted beak. Stamens diadelphous ; anthers uniform. Ovary nearly 

 sessile, many-ovuled. Style thickened and cartilaginous in the upper 

 part, usually bearded longitudinally under the stigma, which is more 

 or less oblique or lateral. Pod linear and nearly cylindrical, or more 

 or less flattened and falcate, with several seeds. Herbs, rarely 

 woody at the base, either dwarf or prostrate, or more frequently 

 twining. Leaflets 3, rarely reduced to one, stipellate. Peduncles ax- 

 illary, bearing in their upper part several 2 -3-flowei-ed nodes. Corol- 

 las glabrous, white, yellowish, red, or purple. Bracts usually cadu- 

 cous. Bractlets often large, and somewhat persistent. 



A considerable genus, widely dispersed throughout the hot regions of the globe. 



1. P. TRUXILLENSIS HBK. (Enum. No. 111.) A twining herb, 

 more or less pubescent or glabrous, the hairs on the stem reflexed, 

 those on the leaves appressed or silky. Leaflets broadly-ovate or 

 narrowly linear-oblong, obtuse or acuminate, rounded at the base, the 

 lateral ones often oblique and unequal, l'-3' long, li'-2' or more 

 wide; stipella3 minute, oblong; stipules small and not decurrent. 

 Peduncles somewhat elongated, few-flowered near the apex ; pedicels 

 l"-5" long. Bractlets shorter than'the calyx, striate, coriaceous, and 

 deciduous. Flowers large, nearly 1' long, purple, whitish-rose- 

 colored or violet. Upper calyx-lobe short, broad, and obtuse, the 

 others longer, acute or acuminate. Pod compressed, straight or fal- 

 cate, 2' -5' long, 3" -4" broad. PA. rostratus, Wall. 



Oahu. Hawaii. Also in other Pacific Islands, in South America, East Australia, and 

 most tropical countries. 



2. P. SEXIERECTUS Linn. (Enum. No. 112.) Stem erect or as- 

 cending, rarely twining above, silky or glabrescent. Leaves ovate, 

 acute, or obtuse, glabrous above, minutely hairy beneath, rather firm 

 in texture, U' long, |' wide, the lateral ones more or less unequal- 

 sided. Raceme few-flowered, at the end of a very much elongated 

 (12'- 1-8') peduncle. Flowers dark purple. Pedicels almost none, at 

 length recurved. Calyx-teeth ovate-lanceolate, pointed, five in num- 

 ber, and nearly equal. Pod nearly cylindrical, silky, or with age 

 glabrescent, linear, 3' -4' long, about 1" in diameter, acuminate 

 beaked, straight or slightly curved, reflexed. 



