4S 
DALE A BicoLOR. 
Two-coloured Dalea. 
DIADELPHIA DECANDRIA — Nat. Ord. LEGUMINOSJE. 
Gen. Char. — Alee et Carina columnae staminum adnatse. ,Stam. 5-10, con- 
natae, absque filamento libero. Legumen monospermum. — V ent. 
Dalea bicolor; decandra, spicis terminalibus elongatis, Mis subquinque- 
jugis obovatis, caule fruticoso. 
Dalea bicolor, Willd. Hort. Berol. v. ii. t. 89- 
A rather small, straggling, sufFrutescent plant, with cylindrical branching 
slightly pubescent zig-zag stems. Leaves alternate, composed of 4 or 5 
pairs of smallish ^obovate, obtuse, rather distant leaflets, and a terminal 
odd one ; these are furnished with a central rib, are slightly petiolated, and 
sprinkled beneath with numerous distinct impressed dots, resembling 
those of the Common Rue. Stipules small, subulate. 
Spike terminal, about 2 or 3 inches long, compact, acuminate, of numerous 
imbricated flowers. Bracteas lanceolato-acuminate, concave, green, ca- 
ducous. Calyx short, whitish, pubescent, with 5 green teeth, of which 
the 3 lowermost are rather the longest, and 10 longitudinal green ribs. 
Corolla of 5 unequal petals. VexiUum ovate, straight, its sides deflexed, 
yellowish- white, with a long claw, which is, for the greater part of its 
length, at a considerable distance from the other petals. AUb oblongo- 
falcate, appressed to the carina, yellowish-white, the extremity violet- 
coloured ; carina of 2 subovate, clawed petals, united by their lower edge, 
larger than the alse, yellowish- white, tipped with blue : both the alae and 
carina have their claws incorporated with the tube of the stamens ; this is 
cleft above at the base, and terminated in 10 filaments, each tipped with 
a deep orange-coloured anther, bearing yellow pollen. Germen ovate, 
pubescent, rising in part above the slit of the tube of the stamens; the 
style concealed, for the greater portion of its length, by the stamens; the 
stigma obtuse, glabrous. 
Pericarp a one-seeded, roundish, pubescent, gibbous legumen, inclosed with- 
in the persistent calyx. Seed large, somewhat kidney-shaped. Cotyle- 
dons 2, large ; radicle pointing upwards. 
VOL. I. 
