-240 WEEDS AND USEFUL PLANTS. 
due subjection. Another species (ZL. purpu’reum, L.) has also been int 
duced in some localities ; but it does not appear to multiply so aaa 
16. LEONU’RUS, ZL. Morserworr. 
[Greek, Leon, a lion, and Oura, a tail ; from some fancied resemblance. ] 
Calyx turbinate, 5-10-nerved—the limb truncate, 5-toothed; teeth | 
-subulate, subspinescent, finally s spreadi ng. Corolla bilabiate, —the upper | 
lip Shots. ae flattish or somewhat arched—lower lip s spreadin g, 3- 
lobed,—the lateral lobes oblong—the middle one entire or sometimes ob- 
cordate. Stamens 4, ascending under the upper lip ; anthers approximat- 
ed in pairs, 2-celled, the valves naked. Akenes Siueerag, truncate at 
— smooth. Mostl y perennial herbs with cut-lobed leaves and close 
whorls of. ea in their 4 oo 
ge se rdia’ca, L. Lower stem-leaves palmate-lobed, the upper ones 
cunea sais Spline, mostly trifid, with a lengthened narrow base,—the lobes 
of all the leaves ovate o r lanceolate ; corolla ae than the calyx-teeth ; 
the tube with a villous ring within at base ; one flattish, hirsutely 
villous ; lower lip spreading, the middle job an ant 
Carprac Leonurvs. Motherwort. 
Fr. a mee ume. Germ. Das _— Span. Agri 
Root pere d above, retrorsely pubescent, 
witha eee coal at em ines or none Leaves 2—4 inches long, rug ose, = lower ones 
nearly orbicular in the outline ; petioles 1-2 inch s bon mg. 2 a flowered, 
sessile, distant, forming an interrupted leafy spike 6-12 or Fire pow in tints 
subulate, smooth. Calyx strongly Sinbad, smoothish ; teeth acuminate, pungent, the 
lower ones rather longer. Poon dl le purple, piece very pean especially on the 
pper lip. Ak amit. 
s foreigner is completely naturalized, and is apt to occupy all 
neglec a and waste places about farm: -yards and along field-sides. "3 
It is an utterly worthless weed—aunsight tly; aid d isagreeable,—and speed- 
ily gives a forlorn appearance to the p premises of the slothful and sloven- 
ly farmer. There ther species (L. marrubias eb) ve 
become partially naturalized in some districts ; but it does not threaten 
to become so prevalent and troublesome 
17. TEU’CRIUM, L. Germanper. 
[Named from Teucer, a Trojan prince, who, it is said, first used the plant.] 
Calyx oe nearly equally 5-toothed. Corolla with the 
tube short,—the 4 upper lobes of the limb nearly equal, oblong and de- 
clined, or very shot and rather erect,—the lowest lobe largest, oblong or 
rounded Stamens 
the Pt lobes of the corolla ; anthers with the 
few-flowered in a terminal rather crowded greyish-green spike. 
