G. ladanum. L. Red Hemp Nettle. A smaller plant with
a hairy stem, and far more rare. Indeed it is credited only to
Chelsea Beach by Dr. Bigelow.
S tachys. L. 13. 1.
From the Greek for a spike, as the flowers are sessile along the
stem, and in all the species the inflorescence is in spikes ; near
40 species, mostly in Europe and the North part of Asia ; about
35 have been cultivated in England ; 4 or 5 are found in the
United States, and 3 in this State.
S. aspera. Mx. Hedge Nettle. About a foot high, erect,
with the angles hairy backwards, and lanceolate leaves, sharp-
serrate ; teeth of calyx spreading and spiny ; fields ; July ; purple
flowers in whorls so as to be spike-form.
S. hyssopifolia. Mx. A small plant half a foot or more high,
with linear leaves and a hairy purple corolla; meadows ; July ;
near New Bedford.
S. sylvatica. L. Has probably been introduced from Europe.
T hymus. L. 13. 1.
T. vulgaris. L. Thyme. Cultivated in gardens, and naturalized
in a few places. Named from the Greek for courage, as its
aromatic odor is reviving. The plant yields considerable camp
h o r; formerly used in cookery ; its extract is penetrating and
strong.
T richostema. L. 13. 1.
From the Greek for hair and stamen, as its stamens are slender
and hair-like ; a genus of 3 species in North America, and 1 in
Asia.
T. dichotoma. L. Blue Curls. A rather handsome plant
with numerous terminal flowers, and long, arching stamens ; pastures
and hills of light so il; June.
T eucrium. L. 13. i.
In honor of Teucer, a Trojan prince ; a genus of more than
70 species, chiefly in Europe, but many in other countries ; 2 in
the United States.
T. Canadense. L. Wild Germander. A foot high, with a
square stem and downy leaves ; flowers purple in a whorled spike ;
whole plant hoary-pubescent ; bracts longer than the calyx ; low
grounds ; July. Very little use is made of the plant.
IsANTHUS. Mx. 13. i.
From the Greek for equal and flower, because the 5 segments
of the eorolla are equal ; a North American genus of 1 species,
and no known use ; stamens nearly equal.
1. cceruleiis. Mx. False Penny Royal. Covered with a
viscid pubescence ; pale-blue flowers, axillary and pedicillate ;
calyx becoming rusty j banks of rivers ; June.
Mentha. L. 13. 1. Mint.
From the Greek, as the poets feign that Mintha, a daughter of
Cocytus, was transformed into a plant of the same name ; a genus
of more than 30 species, of which near five sixths are found in
Europe, and the rest in very different parts of the world ; some
are shrubby ; about 30 have been cultivated in England ; 3 belong
to the United States, and 2 have been introduced.
J\t. borealis: Mx. Horse Mint. About a foot high, hairy,
with many whorled pale-purple flowers, and strong odor ; leaves
lanceolate and serrate ; sandy soils ; August; a fine plant, and
would be ornamental in gardens.
«M. vindis. L. Spear Mint. Too well known to need description
; pleasant for its odor ; July ; introduced from England.
It is used for culinary purposes in England, and its oil is considered
pleasant and medicinal.