FABACEAE 683 
9. TRIGONELLA L. Annual or rarely perennial herbs, with erect or 
spreading stems. Leaflets 3: blades broadened upward, toothed, commonly 
sharply so. Flowers perfect, in short ra- 
cemes or panicles, or od ey alyx-lobes 
nearly oe narrow. Corolla yellow, blue, 
or white: standard ay an obovate or 
cuneate "— blade: s mide or ovate, 
longer than the rounde Style very 
short or subulate. Pod d narrow, i 
dehiscent or ne ce so.—About 50 species, 
mostly of the Old World temperate regions. 
T. monspeliaca L. Plant finely pubes- 
cent: stem simple or branched, 0.5-4 dm 
long: Le > the blades cuneate to ob- 
t 
ovate, 3-11 mm. long, sharply toothed above 
the middle: riens elustered: ealyx 2—2.5 m 
eee than the tu : eo n yellow, about l5 longe than 
a 
andard cuneate, 3-3 ong, emarginate: pod lin ved, T ee 
n reticulate, finely pubescent —Dry soil, fields, and hillsides, Coastal Plain, 
Nat. of Eu. 
Ala. 
10. MELILOTUS ['Tourn.] Juss. Annual or biennial herbs. Leaflet 
3-pinnate. Racemes gr da inv and ultimately interrupted. Calyx- lobes 
nearly equal, shorter than the tube. Corolla yellow or w ite: wings with a 
slender auricle at the base P the blade. Style long. Pod stout, straight.— 
About 20 species, natives of the Old World.—Sum.—SWEET-CLOVERS. MELILOTS. 
Corolla 4-9 mm. long: pod 3-4 mm. long. 
Corolla white: Sdn surpa e sing the wing-petals. 1. M. 
e yellow : standard shorter Pe the wing-petals. 2. M. Du dim 
Corolla 2.5 mm. long or less: pod a mm. long. 3. M. indica. 
1. M. alba Desv. Leaflets lr em. long; blades linear-elliptie, oblanceolate, 
or elliptic: racemes 4-15 em. long, or becoming longer: calyx-lobes slightly 
shorter than the tube: Keel-petals about 
equal to the wing ry S pod 
3 : by 2 ee MELILOT 
WHI T-CLOVER. )— 
cult. a. ad river bad especially in 
calcareous regions, various pro ovinces, nearly 
throughout U. S. and S Can. Nat. of Eu. 
2. M. officinalis (L.) Lam. Leaflets 1-3 
em. long; blades narrowly elliptie, oblance 
olate, or oval: racemes 2—12 cm. long: calyx- 
lobes about % as long as the tube: "Rech 
petals mueh shorter than the wings: ovary 
stipitate: pod about 4 mm. long, pubescent. 
— (YELLOW-MELILOT.) — — Waste- -plaees, E 
grounds, and roadsides, often in ealeare 
soils, various provinces, nearly throughout U. S. and S Can. Nat. of Eu. 
3. M. indica (L.) All. Leaflets 0.5-2 em. long; blades elliptic, oval, cuneate, 
or obovate: racemes 1-2 em. long: corolla yellow: pod about 2 mm, long.— 
