N. ORD.—LABIATA. 118 
Tribe.—SATUREIEA. 
GENUS.—HEDEOMA »* PERS. 
SEX, SYST.—DIANDRIA MONOGYNIA. 
HEDEOMA. 
AMERICAN PENNYROYAL. 
SYN.—HEDEOMA PULEGIOIDES, PERS.; MELISSA PULEGIOIDES, LINN.; 
CUNILA PULEGIOIDES, LINN.; ZIZIPHORA PULEGIOIDES, R. & §. 
COM. NAMES.—MOCK PENNYROYAL, TICK-WEED, SQUAW MINT, STINK- 
ING BALM; (FR.) POULIOT D’AMERIQUE; (GER.) AMERIKANISCHER 
POLEY. 
A TINCTURE OF THE WHOLE PLANT HEDEOMA PULEGIOIDES, PERS. 
Description.—This common, annual herb, grows to a height of from 6 to 12 
inches. Stew erect, minutely pubescent, branching; Aazrs retuse. Leaves oblong- 
ovate, obscurely serrate, the floral similar, all narrowed at the base into a slender 
petiole. /nflorescence in loose, few-flowered, axillary whorls, often having the 
appearance of terminal racemes ; flowers very small, pedicillate. Ca/yx ovoid or 
tubular, gibbous at the base, 13-nerved, bearded in the throat, and more or less 
two-lipped ; ~pper-dip 3-toothed, broad and spreading; /ee¢h triangular; /ower-lip 
2-cleft, divisions setaceous-subulate, and hispid-ciliate. Covod/a bluish, pubescent, 
scarcely exceeding the calyx; évde naked within; 4m 2-lipped, the throat evenly 
open; upper-lip erect, flat, and notched at the apex; lower-lip spreading, 3-cleft. 
Stamens 4, the inferior (fertile) pair the longer; fertile filaments ascending parallel 
and under the upper-lip; s¢evz/e tipped with a little head, destitute of cells or pollen. 
Anthers of fertile stamens, 2-celled. Fruiting calyx ovate-campanulate, strongly 
gibbous, the throat closed with a ring of villous hairs. adélets 4, ovoid, brown, 
slightly compressed. | , 
History and Habitat.—This species is indigenous to North America, where it | 
ranges from Canada to Iowa, and southward. It grows upon the most arid spots — 
of open woods and fields, and blossoms from July to September. 
‘The American Pennyroyal differs largely from the European Uenth 
gium in its botanical characters, but its action, as a medicine, is very like it. | 
species is extensively used, in dom 
minative in colic of children; a diaphoretic in the of colds (Penny! : 
Tea); and in large doses of a hot infusion, together with the pediluvium, in amen- — 
On 
estic practice, as an aromatic stimulant and car-— “oe ° 
beginning of colds (Pennyroyal 
orrhcea. In the latter trouble, if of recent occurrence, it will often bring on the — 
menses nicely ; and, combined with a gill of brewer 's yeast, it frequently acts well — 
