426 XCIIfl. LABIAT Z. * LaMiuM. 
2. D. parviFLorum. Nutt. Small-flowered Dragonhead. 
Subpubescent; lus. ovate-lanceolate, deeply serrate, petiolate; bracts leafy, 
ovate, ciliate, mucronate-serrate ; cal. upper segment much the largest; fis. 
small, verticillate, subcapitate, corolla scarcely exceeding the calyx.—@) Woods, 
Watertown, N., Y. Vasey. Mo., Nuttall. Saskatchawan River, Richardson. 
Very rare. Flowers whitish, very small, the verticils involucrate and almost 
spicate. Calyx dry and membranaceous. Upper lip of the corolla arched, 
emarginate, central lobe of lower lip crenate. July. 
Trize 8. STACHYDEZX.—Calyx oblique or rarely subbilabiate, 3—10- 
toothed. Corolla bilabiate, upper lip galeate or flat, lower lip unequally 3- 
lobed. Stamens ascending, upper pair shorter. 
22. PHYSOSTEGIA. Benth. 
Gr. ¢voa, abladder,and ornyn, a covering; from the inflated corollas. 
Calyx campanulate, subequally 5-toothed ; corolla tube much ex- 
serted, throat inflated, upper lip concave, middle division of lower 
lip largest, roundish, emarginate ; sta. 4, unconnected, ascending be- 
neath the upper lip, the two lower rather longer.— Flowers opposite, in 
a terminal, bracteate, 4-rowed spike. 
P. Viremntana. Benth. (Dracocephalum Virg., denticulatum, variega- 
tum and obovatum of auth. fide Benth.) Lion's Heart.—Calyx teeth acute, 
subequal.—2,| A beautiful plant, native in Penn., S. and W. States! often adorn- 
ing our gardens, where it spreads rapidly. It is 2—3f high, very smooth, dark 
green. Stem square, thick, rigid. Leaves opposite, closely sessile, 4—5’ by 2’, 
with remote and shallow teeth, of a shining dark green. Flowers in 4rowed 
spikes, numerous, dense, or often subremote. Bracts subulate. Corolla pale 
purple, about an inch long, spotted inside. Aug. Sept. 
27. SYNANDRA. Nutt. 
Gr. ovy, together, avdpes ; in allusion to the coherence of the anthers. 
Calyx 4-cleft, segments unequal, subulate, converging to one side; 
upper lip of cor. entire, vaulted, the lower obtusely and unequally 
3-lobed ; throat inflated; upper pair of anthers cohering, having the 
contiguous cells empty. ; 
S. GRANDIFLORA. Nutt. Large-flowering Synandra. . 
St. subsimple, nearly smooth, subterete ; lvs. cordate-ovate, acuminate, ob- 
tusely dentate, often dilated at base, upper ones smaller, cauline sessile, lower 
subpetiolate; fis. solitary and sessile; cal. seg. ovate, setaceously acuminate, 
two upper larger than the two lower; cor. tube somewhat funnel-form, mouth 
much inflated, upper lip entire, vaulted, lower 3-lobed, lobes entire—Banks of 
the Ohio, Cincinnati, Nutt. Woods, near Vermillion River, []l.! Stem about 
if high. Corolla about 1’ long, yellowish-white, lower lip elegantly striated 
with purple lines. June. 
8.1% petiolata. Wood. St. quadrangular, hirsute; Jvs. hirsute, deltoid, trun- 
cate-cordate, all long-petiolate, lower petioles 4—6’ long, upper 1— 4’. Calyx 
hirsute, almost hispid.—Cincinnati, Clark! This is, perhaps, a distinct species. 
28, LAMIUM. 
Lat. Jamia, the name of a sea monster, to which the grotesque flowers may be likened. 
Upper lip of the corolla vaulted, galeate, nearly entire, lower lip 
broad, emarginate, lateral lobes truncate, often toothed on each side 
near the margin of the dilated throat. . 
L. AMPLEXICAULE. Henbit. 
Iws. roundish, incisely crenate, floral ones broadly cordate, obtuse, sessile, 
amplexicaul, lower ones petiolate—@ A small, slender herb, found in culti- 
vated grounds. Stems ascending, several from the same root, 6—10’ high, with 
