434 
MENTHA— MILLIUM. 
6 ; stamens 12 ; leaves palmate-lobed, cor- 
date, very long- petioled. S. 
MEN"THA. 13—1. {Labiaice.) [From Minthe, 
the daughter of Cocytus, who is said to 
have been changed into this herb.] 
canaden/'se, (w.p. Au. 24-) flowers whorl- 
ed; leaves lance-ovate, serrate, petioled, 
hairy; stamens as long as the corolla. 
Sandy soils. Stem 1 f. 
horea'lia, (w. p. J. Z^.) ascending, pubes- 
cent; leaves petioled, ovate-lanceolate, 
acute at both ends , flowers in whorls, sta- 
mens exsert, twice as long as the corolla. 
Horse-mint. 
piperi'ta, (peppermint, p. Au. 2^.) spikes 
obtuse, interrupted below ; leaves sub- 
ovate, somewhat glabrous, petioled ; stem 
glabrous at the base. Naturalized. 1-2 f. 
Ex. 
vir"idis, (spearmint, p. Au.) leaves lan- 
ceolate, sessile ; spikes elongated, interrupt- 
ed ; stamens long. 1-2 f, Ex. 
ten"uis, (America spearmint, w. J. 2X.) 
glabrous ; leaves opposite, ovate-lanceolate, 
serrulate, petioled ; spike slender, terminal, 
with verticils very small, distant at base ; 
stamens shorter than the corolla. 1-2 f. 
arven"sis, (field-mint, p. Ju.) hairy, branch- 
ing ; leaves ovate ; flowers whorled ; calyx 
bell-form. Naturalized. 1 f. 
MRNTZE'LIA. 11—1. (Onagra.) [In honor 
of Dr. Mentzel.] 
au'rea, (y.) stem dichotomous ; leaves 
lance-ovate, deeply angular-crenate ; flow- 
ers sessile; petals oval, acurninate, entire ; 
plant rough. \2 i. S. 
oHgosper"ma, decumbent ; flowers large. 
S. 
MENYaN"THES. 5—1. (Gentiana.) [From 
mene, mouth, and anthos, flower.] 
trifo'liata, (buck-bean, r. J. 2^.) leaves 
ternate, petioled, sheathing, smooth ; flow- 
ers pale, in a terminal raceme. Marshes. 
MENZIE'SIA. 8-1. {Erica.) [Named by 
Smith, in honor of Menzies.] 
coem lea, (mountain-heath, Ju. Tp.) stem 
branched, woody below ; leaves scattered, 
crowded, linear, toothed ; peduncles termi- 
nal, aggregate, 1-flowered , flowers bell- 
jjhaped, S-cleft, decandrous; calyx very 
acute. An evergreen shrub, resembling 
the heath. White hills, N. H., and other 
cold, elevated regions. Flowers large, pur- 
ple, on long, red peduncles. 
globula'ris, leaves lanceolate, glaucous 
beneath, nerves pubescent; calyx 4-cleft; 
flowers globose, octandrous. Mountains. 
Penn. to Car. Shrub. 4 f. Flowers yel- 
lowish brown. 
ferrv,gin"ea, leaves lance-obovate ; flow- 
ers urceolate, octandrous. S. 
empetrifor"mis, (r. Ju. Tp.) leaves linear, 
serrulate, concave beneath ; peduncles ter- 
minal, aggregate ; flowers bell-form ; calyx 
Qbtuse, decandrous. S. 
polifo'lia, (St. Daboec's heath,) flowers 
larger, and more globulai than those of the 
common heaths. Found wild in Ireland. 
MESE1VIBRYaN"THEMUM. \ \—b (Ficoidem.) 
f From mesembria mid-day, and anthos flow- i 
er, so called because its flo ers exp.*nd &fi 
noon.] 
crystal?/ /mm, (ice plant, w. Au. 
branching ; leaves alternate, ovat.-^, papil 
lose; flowers sessile; calyx broad-ovate 
acute, retuse. Ex. 
pomeridia'num, {@) flowers of a brilliant 
yellow. 
MES'TILUS. 11—5. {Rosacea.) 
germani'ca, (medlar, ^.) leaves lance- 
ovate, downy beneath ; flowers sessile, 
solitary. Ex. 
oxycaii"tlia, (English hawthorn.) 
MICRAN"THEMUM 2—1. {LysimachicB.) 
[From mikros, small, and anthos, llower ] 
orbicula'f.um, (w. Au. 2X-) stem pros, 
trate, terete ; orbicular, abruptly narrowed 
at the base ; flowers peduncled. 
emargina'tnm, (w. Au. 2.^.) leaves oval 
and obovate, emarginate, sessile, flowers 
sessile ; stem prostrate or creeping. Wet 
places. 
.MICROPE'TALON. 10-4. {Caryophyllca.) 
[Named from the diminutive size of tiie pe- 
tals.] 
lanceola'tnm, (blind starwort, Ju. 2_f.^ 
glabrous; leaves lanceolate, narrow at both 
ends; flowers pauicled ; petals ovate, very 
short or wanting. Damp. 6 8 i. 
longifo'Vtn, (long-leaf starwort, w. J. 2^.) 
stem decumbent or sub-decumbent , leaves 
lance-linear, opposite, entire. 
laiingino'sum, (Ju. 2X.) closely pubes- 
cent; leaves lanceolate, tapering to a pe- 
tiole; peduncles generally solitary, long, 
finally reflected ; flowers without petals. /S. 
MI(mOS"TYLIS. 18—1. {Orchidea.) [From 
mikros, small, and stulos, style.] 
ophioglossioi'des, (g-w. J. 11 ■) scape 1- 
leafed ; leaf ovate, amplexicaule ; lip trun- 
cate, emarginate. Roots of trees. 
brachypo'da. (Ju.) stem 1-leaved; racemes 
sub-spiked, lateral petals refracted ; hp tri 
angular-hastate, cucullate, acuminate. 
MIK'GIA. 3—1. (Gramineoe.) 
macroftper"ina, (cane, Ap. 2^.) stem le 
rete-glabrous, hollow, rigid ; leaves distich 
us, lanceolate, flat, sub-acuminate, pubes 
cent underneath. 3-15 f. YdLV-giganfea, 
much taller. 30-40 f. 
MIKA'NIA. 17—1. {Conmhtfera.) [In honoi 
of Professor Mikan of Prague.] 
pubes" cem, (w-p. S. 2^.) stem climbing, 
pubescent ; leaves cordate, acuminate, an- 
gularly dentate, pubescent on both sides: 
divaricate, equal. 
sca7i"dcns, (climbing thorough woi-t, w 
Au. 2|.) stem glabrous, climbing; leaves 
cordate, toothed, acuminate. 
M1L"LIUM. 3—2. (Graminea) 
effu'sum, (millet, Ju. ll-) panicle diftuso, 
compound ; branches horizontal , glumes 
ovate, very obtuse ; paleas awnless, smootl 
and shining ; leaves broad linear. 5-8 f. 
amphicar''pon, (Au. 2^.) leaves linear- 
lanceolate, hairy, ciliate ; panicle simple, 
contracted, bearing perfect flowers; fertile 
flowers in solitary, elongated radical scapes, 
at length subterraneous ; glumes acumi 
nate. 1-2 f. Sandy swamps. 
I ■pun"g''.ns (dwarf millet grass M. ij < 
