LABIATÆ. LXXI. CEDRONELLA. 
celled; cells parallel. Style about equally bifid at top; lobes 
subulate, stigmatiferous at apex. Achenia dry, smooth.— 
Herbs. Whorls approximate into terminal spikes or racemes. 
Floral leaves bractea-formed. Bracteas small, setaceous. 
1 C. corpa‘ra (Benth. lab. p. 502.) herbaceous, stolonifer- 
ous ; leaves cordate-ovate, crenated; whorls few-flowered, se- 
cund, approximating into short spikes or racemes. Ņ%. H. 
Native of North America, at the river Ohio, below Pittsburgh, 
Nuttall. Dracocéphalum cordàtum, Nutt. gen. amer. 2. p. 35. 
Stems creeping, and rooting at the base.  Floriferous branches 
erect, simple, villous. Leaves 1 to 14 inch long, form of those 
of Làmium, quite entire, obtuse, pubescent, or nearly glabrous. 
Cymes on short peduncles, 1-3-flowered. Corolla showy, pale 
blue, 14 inch long. 
Cordate-leaved Cedronella. 
1 foot. 
2 C. Mexica‘na (Benth. lab. p. 502.) tall; leaves ovate- 
lanceolate, cordate at the base, toothed ; whorls many -flowered, 
approximating into a terete, interrupted spike or raceme. H. 
Native of Mexico, among corn and in meadows, in the 
woody region near Valladolid, Pazcuaro, Chalco, and Tlal- 
puxahua. Dracocéphalum Mexicànum, H. B. et Kunth, nov. 
gen. amer. 2. p. 502.— Herb glabrous, or finely pubescent. 
Leaves on short petioles, 14 to 2 inches long, acuminated, acute, 
glandular beneath. Whorls loose, 20-40-flowered. Corolla 
purplish, 3 times as long as the calyx. Genitals exserted. 
Mexican Cedronella. Pl. 2 to 3 feet. 
3 C. TRIPRY'LLA (Moench, meth. 411.) shrubby, tall; leaves 
ternate: leaflets oblong-lanceolate ; whorls loose, collected 
into terete oblong spikes. h. F. Native of America, and 
probably of the Canary Islands. Dracocéphalum Canariénse, 
Lin. spec. p. 829. C. Canariénsis, &c., Comm. hort. amst. 2. 
p. 81. t. 41.— Volk. norib. t. 145. Lateral leaflets sessile, ter- 
minal one petiolate, larger, all nearly glabrous, or pubescent be- 
neath. Whorls 10-12-flowered. Corolla white or pale purple, 
scarcely twice as long as the calyx. The plant was first brought 
to Europe under the name of Permenta de Tana. It is now 
known under the name of Balm of Gilead, which it has obtained 
from its rich odour on being gently rubbed. 
Three-leaved Cedronella, or Balm of Gilead. Fl. July, Sept. 
Clt. 1697. Shrub 3 to 4 feet. 
Cult. For culture and propagation see Dracocéphalum, p. 
814, for the herbaceous species, and Prostanthéra, p. 800, for 
the shrubby kind, 
Fl. July, Aug. Clt. 1824. Pl. 
Tribe IX. 
STACHY'DEJE (this tribe contains genera agreeing with 
Stüchys, in the characters given below.) Benth. lab. p. 503. 
Calyx irregularly veined or 5-10-nerved, equal, oblique, rarely 
sub-bilabiate, 3-10-toothed. Tube of corolla inclosed or exserted, 
often annulate inside; limb bilabiate : upper lip galeate or flat, 
entire or emarginate : lower lip variously trifid. Stamens 4, 
ascending, didynamous, all fertile, or the anthers of the lower 
ones are empty or dimidiate ; superior ones short. 
LXXII. MELI'TTIS (from perra, melitta, a bee ; a name 
used by Pliny as synonymous with Melíssa.) Lin. gen. no. 731. 
Schreb. gen. 985. Juss. gen. p. 116. Benth. lab. p. 503. 
Liv. syst. Didynàmia, Gymnospérmia. Calyx campanulate, 
membranaceous, irregularly veined, subbilabiate ; upper lip broad, 
roundish, obscurely 2-lobed or shortly 2-3-toothed ; lower lip 
bifid, with rounded lobes. Corolla, with an ample exserted 
1 
LXXII. Mzrrris. 
LXXIII, PuysostTEGIA, 815 
tube, which is not annulate inside, and a bilabiate limb ; superior 
lip orbicular, entire, rather concave, spreading: lower lip 3- 
lobed, spreading. Stamens 4, ascending, didynamous, lower 
ones the longest; filaments without any appendages ; anthers 
approximating by pairs, 2-celled: cells distinct, diverging. 
Style shortly bifid at apex; lobes ovate, stigmatiferous at apex. 
Achenia dry, smooth, or finely reticulated. 
1 M. me.issopny’Lium (Lin. spec. p. 832.) 2t. H.— Native 
of Europe, in shady places ; as of France, Germany, Portugal, 
Spain, Sicily, Italy, Greece: in England; as in Devonshire, 
about Totness, Barnstable, &c. ; Hampshire, in the New Forest ; 
Pembrokeshire, about Haverford West, in woods and other shady 
places. Stems erect, simple, more or less hairy. Leaves on 
short petioles, 13 to 2 inches long, ovate, crenated, cordate at 
the base, or the upper ones are rounded, wrinkled, villous, green 
on both surfaces; floral leaves narrower; all exceeding the 
flowers. Whorls about 6-flowered, axillary. Corolla 14 inch 
long, red, or red and white. Pedicels rather shorter than the 
calyxes. Much honey is secreted by a gland that encircles the 
base of the germ; hence it is a favourite plant with bees. 
Var. a, grandiflora ; plant pale green ; corolla cream-coloured, 
with the middle of the lower lip violaceous. 2t. H. M. grandi- 
flora, Smith, fl. brit. 2. p. 644. engl. bot. t. 636. Hook. fl. 
lond. vol. 2. icone. Rehb. icon. bot. eur. 3. p. 41. t. 242. M. 
melissophyllum, Curt. lond. no. 64. Mill. fig. t. 32.—Riv. mon. 
irr. t. 21. f. 1. M. álbida, Guss. prod. fl. sic. 2. p. 140. M. 
sylvéstris, Lam. fl. fr. 2. p. 401. 
Var. f, melissophijllum ; stems purplish; leaves deep green ; 
flowers altogether purple, and sometimes white. ^4. H. M. 
melissophyllum, Jacq. fl. austr. 1. t. 26. Smith, engl. bot. t. 
577. Rchb. icon. bot. eur. 3. p. 41. t. 241. 
Balm-leaved Bastard Balm. Fl. May, June. 
1 to 14 foot. 
Cult. Both varieties are very showy when in blossom, and 
are, therefore, well fitted for decorating flower borders, woods, 
and shrubberies. They are readily increased by dividing the 
root in spring or autumn, 
England. Pl. 
LXXIII. PHYSOSTEGIA (from $vca, physa, a bladder ; 
and oreyw, stego, to cover; in allusion to the inflated calyx.) 
Benth. in bot. reg. vol. 15. lab. p. 504. Dracocéphalum spe- 
cies, Lin. and other authors. 
Lin. syst. Didynàmia, Gymnospérmia. Calyx tubularly cam- 
panulate at the time of florescence, but afterwards becoming in- 
flated and campanulate, with about 10 obscure veins, almost 
equally 5-toothed, or truncate and scarcely toothed at top. Corolla 
with a long exserted tube, which is exannulate inside, an inflated 
throat, and a bilabiate limb ; upper lip erectish, rather concave, 
entire, or emarginate ; lower lip spreading, trifid, with roundish 
lobes, the middle lobe large and emarginate. Stamens 4, ascend- 
ing under the upper lip, somewhat didynamous ; lower ones emi- 
nent; anthers approximate, 2-celled: cells parallel, distinct, 
naked. Style about equally bifid at top; lobes subulate, stig- 
matiferous at apex. Achenia dry, smooth. Habit peculiar. 
1 P. ViRoiNIA'NA (Benth. lab. p. 504.) calyx acutely 5-tooth- 
ed. 2). H. Native of North America, from Canada to Texas, 
in rather humid places: and on the North-west coast at the Co- 
lumbia river. Dracocéphalum Virginianum, Lin. spec. 828. 
Curt. bot. mag. t. 467. D. lancifolium, Mcench. meth. p. 410. 
D. variegàtum, Vent. cels. t. 44. D. denticulàtum, Ait. hort. 
kew. 2. p. 817. Curt. bot. mag. 214. D. speciosum, Sweet, fl. 
gard. 1. t. 93. D. obovàtum, Elliott, bot. car. 2. p. 86. D. inter- 
médium, Nutt, in amer. phil. trans. n. s. 5. p.187. Pràsium pur- 
püreum, Walt. fl. car. p. 166. Pràsium coccineum, Walt. fl. car. 
