270 LEGUMINOSAE. DrEsMANTHUS. 
Heyne's herbarium) ; it has only one pair of pinnæ; and agrees with the Lin- 
nean type of the species. No. 5281 has 2 pair of pinnse, but we know that 
character to be inconstant, and Roxburgh says of his Mim. lucida, that it has 
either one or two pairs. 
834. (6) I. umbellata (Willd.:) arboreous, armed: thorns stipulary, or 
often solitary (and then abortive branches), large, diverging, leaf and flower 
ring: leaves bipinnated; pinne 1-2 pairs, with a gland between each 
pair ; leaflets 3-10 pair, with an odd one on the outside below the lowest 
pair, glabrous, linear-oblong, obtuse, sessile, with an inconspicuous gland be- 
tween each pair, the uppermost pair obovate: peduncles axillary, slender, 1-2 
together, bearing a single globular head of few short-pedicelled flowers: sta- 
mens very long: legumes large, many-jointed, much curved, woody, slightly 
scabrous, at length shining. — Willd. sp. 4. p. 1027 ; DC. prod. 2. p. 439; G. 
Don in Mill. dict. 2. p. 393 (not p. 391. n. 59) ; Wight! cat. n. 563.—1. con- 
cordiana, DC. l e. p. 441; Wail.! L. n. 5287.—Mimosa umbellata, Vahl, 
symb. 2. p. 103.—M. bigemina, Koen. ! in herb. Linn.—M. concordiana, Roxb. 
Jl. Ind. 2. p. 556; in E. I. C. mus. tab. 1008. 
LXVII. DESMANTHUS. Willd. 
„Flowers polygamous, bisexual and neuter. Calyx 5-toothed. Petals 5, 
distinct and oblong-spathulate, or united, or wanting in the neuter florets. 
Stamens 10, more rarely 5; the filaments in the lower flowers of each spike 
sterile, dilated and membranaceous or filiform. Legume continuous, thickly 
membranaceous, dry, flat, 2-valved. Seeds naked.—Herbaceous or suffrutes- 
cent unarmed plants. Leaves with stipules, bipinnated. Spikes axillary, pe- 
— ovate or cylindrical. Flowers white, the fertile filaments usually 
yellow. 
$ 1. Sterile filaments flat and somewhat petaloid : legumes oblong, 4-8- m 
Neptunia, Lour. 
835. (1) D. natans (Willd. :) annual, floating and throwing out roots ; stem 
here and there swollen and inflated: leaves bipinnated ; pinnæ 2-3 pair; 
leaflets 8-12 pair: stipules obliquely cordate: peduncles axillary, solitary, 
longer than the leaves, with often a single bractea about the middle: flowers 
in oblong solitary spikes: corolla 5-petalled: stamens 10: legume stalked, 
oblique at the base, oblong, falcate, 6-8-seeded.— Willd. sp. 4. p. 1044; D C. 
prod. 2. p. 444 ; Spr. syst. 2. p. 325 ; Wall. ! L. n. 6295 ; Wight! cat. n. 557. 
—Mimosa natans, Roxb. Cor, 2. t. 119 ; fl. Ind. 2. p. 553.—M. prostrata, Lam. 
— Neptunia oleracea, Lour.—Rheed. Mal. 9. t. 21. 
,836. (2) D. triquetrus (Willd. :) bi-triennial, prostrate: stem compressed, 
triquetrous below: leaves bipinnated ; pinnz 2-3 pair; leaflets 10-12 pair: 
stipules subulate : peduncles axillary, solitary, naked or with 2 caducous 
bracteas about the middle: flowers globular-headed ; 5-petaled, decandrous: 
legumes stalked, linear-oblong, equal-sided, 4—6-seeded.— Willd. sp. 4. P- 
1045 ; DC. prod. 2. p. 444; Spr. syst. 2. p. 325; Wall! L. n. 5296; Wight! 
cat. n. 558.—Mimosa triquetra, Vahl, symb. 3. p. 102; Roxb. fl. Ind. 2. p- 
552.—M. natans, Linn. ! suppl. p. 439.— Pluk, t. 307. Fi. 
§ 2. Sterile filaments filiform: legumes linear, many-seeded.—Desmanthea, 
DC. 
, 897. (3) D. virgatus (Willd. :) suffruticose : stem erect, angled : leaves bi- 
pmnated; pinne 3-4 pair, with a large concave gland tid the lowest 
