268 105. LEGUMINOSAE 



Filaments united, excepting the uppermost, which is free at least at the 

 base. Standard auriclcd at the base ; keel curved. Flowers large or 

 rather large 200 



200. Uppermost stamens free at the base, but united with the others at the 



middle. Corolla red ; keel somewhat shorter than the wings. Twining 



shrubs. — Species I. Tropics Dioclea H. B. & K. 



Uppermost stamens free throughout. Corolla red or 3'ellowish-green ; 

 keel as long as or longer than the wings. — Species 20. Tropics. 

 Some of them yield poisons, medicaments, vegetables, fodder, and 

 dyes, or serve as ornamental plants. {Stizolobium P. Br.). 



Mucuna Adans. 



201. Stipules free, stem-clasping, Corolla red, blue, or white ; keel blunt. 



Ovule I. Fruit ovate, indehiscent. Gland-dotted plants. (See 153.) 



Psoralea L. 

 Stipules adnate to the leaf-stalk. Corolla red or yellow ; keel usually 



beaked. Ovules 2 or more 202 



-202. Leaflets toothed. Calyx with a short tube and subequal segments- 



Fruit dehiscing by two valves, usually terete. (See 129.) . Ononis L. 

 Leaflets entire. Calyx with a thread-shaped tube and unequal segments, 



four of which are connate. Corolla yellow. Ovules 2 — 3. Base of the 



style persistent. Fruit flat, separating in two joints or indehiscent. 



Herbs. Flowers usually intermixed with feathery bristles. — Species 



5. Tropical and South Africa Stylosanthes Swartz 



203. (197.) Stem woody. Corolla white or red ; wings free. Stamens diadel- 



Dhous at the base, at first monadelphous at the middle. Ovary stalked. 

 Style hairy at the apex. Fruit flat. — Species i (R. Pseiidncacia L.). 

 Naturalized in North Africa. Yields timber and medicaments and is 

 used as an ornamental plant. The bark and the leaves are poisonous. 



Robinia L. 

 Stem herbaceous. Corolla blue, yellow, or whitish. Ovary sessile. . 204 



204. Filaments united, excepting one, or all united into a sheath split above. 



Wings free. Fruit oblong or ovate, fiat or constricted between the 

 seeds. — Species 2. North Africa. They yield medicaments (liquor- 

 ice), dyes, and material for papermaking. . . Glycyrrhiza L. 

 Filaments all united into a closed tube. Wings slightly adhering to the 

 keel. Style glabrous. Fruit linear, subterete. — Species i. North 

 Africa (Algeria). Used as an ornamental, medicinal, or fodder-plant. 

 " Goats rue." Galega L. 



205. (147.) Leaves abruptly pinnate. I Especially tribe VICIEAE.j . . 206 

 Leaves imparipinnate, digitate, unifoliolate, simple, or wanting. . . 220 



206. Calyx distinctly two-lipped, the upper lip entire or shortly 2-toothed, the 



lower one entire, 3-toothcd, or 3-parted. Corolla yellow ; standard 



suborbicular. Fruit jointed. Flowers in racemes 207 



•Calyxequally or subequalh^ toothed or divided, or entire 210 



