Medicaco. LEGUMINOS.E. 321 



2. M. lencanlha (Koclj): stem erect, branched; haflctsovatc-olilonc^, trun- 

 cate at th-:' apex, rnui'ronate, n-uiotcly serrate; btijiiiles setaceous; racemes 

 loo-;e; tcrth of tlie calyx unequal, a-; Ions; as the tube ; corolla (\vliitt') more 

 than twice the length of the calyx, the keel and wings shorter than the vtxil- 

 lutn; legumes 2-secded, orate, wrinkled. — DC. I. c. M. vulgaris, ll'illd. 

 ■enurn, l. c. M. olficinalis. Pursh, ft. 2. p. ill. M. officinalis (i. alba, Nult. 

 gen. 2. p. 104. M. alba, Tlmil. ; Eaton., I. c. Trilblium officinale /?. Linn. 



Rich soils, alons; rivers, New-York! and New England ! Introduced, .liine- 

 Au<j. — ''Z) DC. Stem 3-6 feet high. Racemes elongated, panicled. — White 

 Melilot". 



3. M. parri flora (Desf.) : stem ascending or erect, with spreading branch- 

 es ; leailels of the lower leaves obovate-roundish and often nearly entire; 

 unp'^r ones cuneate-oblong or linear, truncate or ernarginate, serrate ; stipules 

 linear-setaceous • spikes at first dense, at length rather loose ; flowers (yellow) 

 minute; teeth of the calyx broad, nearly equal, half the length of the corolla; 

 wina-=; almost as long as the keel and vexillum ; legumes globose-ovate, wrink- 

 led, Vseeded.—ZJe.?/!/?. Atl.2.p. 192; DC. I.e.; Hook, compun. to hot. 

 mas: 1. p. 22. M. In'dica, Smith. 



Near New Orleans, Dr. Ingalls! Drummond. — (l) Doubtless introduced. 



4. M occidental is (Nun. mss.) : " stem erect, tall ; leaflets linear-oblong 

 or obovate, sharply serrate, truncate at the extremity; flowers (yellow) mi- 

 nute; teeth of the calyx unequal, as long as the tube; vrxillum as long as 

 the tube: legume 1-2-secded, ovate-orbicular, slightly wrinkled." — M. parvi- 

 flora? Hook. J^ Am. hot. Beech eij, -. 137? 



" Sides of naked hills near the sea, California (also in Peru): apparently 

 indio'enou^. Very nearly allied to M. linearis." Nuttall ! — The description 

 seems to agree well with T. parviflora, except in the unequal calyx-teeth. 



31. MEDICAGO. Linn.; Gcertn. Jr. t. 155 ; DC. prodr. 2. p. 171. 



Calyx somewhat cylindrical, 5-cleft. Keel of the corolla remote from the 

 vexillum. Legume usually many-seeded, of various forms, falcate or spirally 

 {-oiled. — Herbaceous, or rarely shrubby, plants. Stipules often incised. Leaves 

 palmately trifoliolate : leaflets often toothed. Peduncles axiUary, 1-2- or 

 many-flowered. Flowers yellow. — Medick. 



_^:^ 1. M. saliva (Linn.) : stem erect, glabrous ; leaflets obovate-oblong, tooth- 

 'ed "above, mucrcnate ; stipules lanceolate, somewhat toothed; flowers race- 

 mose; lecuraes spirally twisted, finely reticulated. DC. prodr. 2. p. 173; 

 Ene. bot'.t. 1479; Darlingt. ft. Cest. p. 405. 



Fields and roadsides, New-York ! and Pennsylvania. Introduced. June- 

 jQly. — 21 Flowers conspicuous, violet. — Lucerne. 



-y— 2. M. maculata ( Willd.) : stem prostrate ; leaflets obcordate, toothed, spot- 

 "^ted; stipules toothed; peduncles 3-5-flowered ; legumes compactly spiral, 



furrowed on the margin and fringed with a double row of long curved spines; 



seeds reniform, yelloM'ish.— Z>C. _pro(/r. 2. p. 179; Hook, compan. to bot. 



vias;. \. p.2l. ■ r, tt i , t 



Near New Orleans, Drummond ! Red River, Louisiana, Dr. Hale! In- 

 troduced.— Plant 1-2 feet high. Leaflets conspicuously toothed, marked 

 with a purple spot in the centre^ Flowers small, puiplish. Convolutions of 

 the legume 3-5. 

 J.... 3. M. denticidata (Willd.) : nearly glabrous ; stem prostrate ; leaflets ob- 

 cordate ; stipules laciniate ; peduncles 2-5-flowered ; legumes broad, loosely 

 spiral and flat, with 1-3 convolutions, reticulated; the margin thin, keeled 



41 



