528 LEGUMINOSAE. [Swaensona. 
orbicular or reniform, spreading or reflexed, shortly clawed ; wings oblong, 
falcate or slightly twisted; keel broad, incurved, obtuse or produced into 
a twisted beak. Upper stamen free; remainder connate into a sheath. 
Ovary sessile or stalked ; ovules numerous; style slender, incurved, bearded 
along the inner edge. Pod ovoid or oblong, turgid or inflated, membranous 
or coriaceous, 2-valved or almost indehiscent. Seeds several, small, usually 
reniform. 
With the exception of the following species, which is endemic in New Zealand, 
the genus is confined to Australia. It is very closely allied to the northern genera © 
Colutea and Astragalus. 
1. S. novae-zealandiae Hook. f. Handb. N.Z. Fl. (1864) 51.—A small 
herbaceous perennial 2—4 in. high, more or less clothed with silky pubescence. 
Rhizome creeping, slender. Stems numerous, erect or spreading, branched 
above. Leaves 1-2 in. long; leaflets 6-8 pairs, } in. long, opposite, oblong 
or narrow-obovate, obtuse or retuse, sessile. Stipules broadly ovate, obtuse. 
Racemes 3-8-flowered, on stout peduncles longer or shorter than the leaves ; 
pedicles not equalling the calyx, bracteolate at the base. Flowers purplish, 
zin. long. Calyx silky-hairy, with linear teeth as long as the tube, 
2-bracteolate at the base. Pod large, inflated, 1 in. long, acute at both ends ; 
valves thin, coriaceous. Seeds 5-10, small—T. Kirk Students’ Fl. (1899) 
118; Cheesem. Man. N.Z. Fi. (1906) 121. 
Mens . <foknre, Arn y, T > (Ges) - 
Sout Ist&np : Nelson—Mountains Paha the Ct renee alley, W. 7. L. Travers, 
T. F.C. Marlborough—Kaikoura Mountains, Buchanan! Canterbury—Kowai River, 
Haast / Coleridge Pass, J. D. Enys / T. Kirk! Mount Arrowsmith, Cockayne and R. M, 
Laing. Otago—Mount St. Bathan’s, Petrie/ Mount Ida, H. J. Matthews ! 2000- 
5000 ft. December—January. 
7. CANAVALIA DC. 1426, 
Climbing or prostrate herbs, often of large size. Leaves 3-foliolate, 
stipellate. Flowers rather large, in axillary racemes. Calyx-limb 2-lipped ; 
the upper lip large and projecting, entire or 2-lobed; the lower shortly 
3-toothed. Standard broad, reflexed; wings shorter, oblong or linear, 
faleate or twisted; keel incurved, obtuse or obtusely rostrate. Stamens 
all connate into a tube; anthers uniform. Ovary shortly stipitate; ovules 
numerous; style filitorm, beardless; stigma terminal. Pod large, oblong 
or linear, 2-valved, with a distinct rib on each valve near the upper suture. 
Seeds rounded or oblong, compressed ; hilum linear. ) 
fiat 
Species about 12; 2 or 3 of them, including the New Zealand one, widely spread in 
the tropics, the remainder mostly American. 
1. C. obtusifolia DC. Prodr. 11 (1825) 404.—Stems long, trailing, glabrous 
or the young shoots silky-pubescent. Leaflets 2-4 in. long, broadly obovate 
or orbicular, obtuse or emarginate, texture firm. Racemes few-flowered, 
on stout erect peduncles 6-10in. long, usually overtopping the leaves. 
Flowers pinkish. Standard orbicular, ?in. diam. Pod 4-5 in. long by 
lin. broad, the longitudinal wings very narrow. Seeds 2-8.—Benth. FI. 
Austral. 11 (1864) 256; ZT. Kirk Students’ Fl. (1899) 121; Oheesem. Man. 
N.Z. Fl. (1906) 122. 
KERMADEC ISLANDS: Serambling over rocks and shrubs at Coral Bay, Sunday 
Island, and on Meyer and N apier Islands, 7. F. C., W. R. B. Oliver !/ 
A common plant on the shores of almost all tropical countries, and abundant on 
both Norfolk Island and Lord Howe Island, 
