MALACHODENDRON-MELIA. 115 
grandifloWa, (big laurel magnolia, w. M. T2.) leaves evergreen, oval, thick, 
leathery; petals broad, obovate, abruptly narrowed into a claw. 60-80 
feet. S. 
MALACHODENDRON. 15—5. {Burantia.} [From malafce, soft, dendron, tree.] 
ova'tum, (w. M. T7.) leaves ovate, acute ; flower solitary, sub-sessile. 6-12 f. 
MALVA. 15—13. {Malvaceae.) [From woZZis, soft.J 
rotundifo'lia, (low mallows, r. w. J. ^I-.) leaves heart-orbicular, obsoletely 5- 
lobed; peduncles^bearing the fruit declined ; stem prostrate. Probably in- 
troduced. 
sylves'^tris, (mallows, r-b. J. J*, and %.) stem erect ; leaves about 7-lobed, 
acutish ; peduncles and petioles hairy. Ex. 
crW'fa^ (curled mallows, Au. ©.) stem erect ; leaves angular, crisped 5 flow- 
ers axillary, glomerate. Ex. 
caroli7i"iana, (r. Au. <v).) leaves 5-lobed or palmate, gash-toothed ; peduncles 
longer than the petioles; petals entire; fruit villose ; stem prostrate. 
coccin"ea^ (r. Au. %.) hoary-tomentose, covered with stellate hairs ; racemes 
terminal ; stem diffuse. /SL 
MARCHANTIA. 21—3. {Hepaticoi.') [From Marchant, a naturalist.] 
polymor^pha, (brook liverwort, g-y. Ju. %.) pistillate receptacles radiated ; 
staminate ones peduncled, peltate ; fronds crowded together, lobed, nerved, 
and covered with small decussate veins; pistillate peduncles very long , 
nerves of the frond generally brown. On earth and stones, in wet or 
damp places. 
MARRUBIUM. 13—1. (Labiatoi.) [From a Hebrew word, jwarroft, a bitter juice.] 
vulga're, (horehound, w. Ju. I^.) leaves round-ovate, toothed, rugose, veined; 
calyx toothed, setaceous, uncinate. Introduced. 
MARTYNEA. 13—2. (Bignoni(B.) [In honour of the botanist, Martyn.] 
probosci^dea, (martinoe, w. p. y. Ju. #.) stem short, branching; leaves alter- 
nate, cordate, entire, villose; pericarp terminating in along proboscis. 1-2 
f. S. 
MECONOPSIS. 12—1. (Papaveracecc.) [From melcon, a poppy, opsis, aspect, resembling a 
poppy-] 
diphi/V'la, (y.m. T7,) leaves 2, glaucous, sessile, hairy; lobes rounded and ob- 
tuse; capsules 4- valved-echinate. If, 
peiiala'tum. stem 4-sided; leaves very broad, long-petioled, pinnatifid-lobed. .S*. 
MEDEOLA. 6-3. (Asparagi.) 
<virgin"ica, (Indian cucumber, g-y. m. T2.) leaves in whorls, lance-oval, acu- 
minate; pedicels aggregated, terminal ; root white. 12-18 i. 
MEDICAGO. 16—10. {Leguminos{B.) [Called medike, by Dioscorides, on account of its sup- 
posed medicinal virtues.] 
lupuli'na, (hop medick, y. J. spikes oval; legumes reniform, 1-seeded; 
stipules entire; leaves obovate ; stem procumbent. 
intertex"ta, (y. Au.) stem procumbent ; leafets obovate, toothed; stipules cili- 
ate, toothed ; peduncles somewhat 2-flow€red ; legume pilose, spiral, oval; 
spines straight, thick, rigid, and acute. Sandy fields. Conn, to Car. In- 
troduced. 
MELAMPYRUM. 14—2. (Pediculares.) [From wieZas, black, and jpwros, wheat.] 
america'num, (cow-wheat, y. Ju, ^.) slender; lower leaves linear, entire; flo- 
ral ones lanceolate, toothed behind; flowers axillary, distinct. Var. latifo- 
lium, has very broad leaves. Woods. S". 
MELANTHIUM. 6—3, (JunccB.) [From melas, black, antkos, flower.] 
virgin^^icum, (g-y. black flower,) panicle pyramid-form, very large ; petals 
ovate ; leaves long, linear-lanceolate, flat, smooth ; flowers become black. 
3-4 f 
MELIA. 10—1. (MelicB.) [From weZi, honey.] 
azed''orach, (pride of China, Yi.) leaves doubly pinnate : leafets smooth, ovate, 
toothed, 30-40 f S, 
31 
