122 LABIATAE. Vor. III. 
Lamium hybridum Vill., occasionally found in waste and cultivated grounds, introduced from 
Europe, differs by its more deeply and incisely toothed leaves. 
3. Lamium maculatum L. Spotted Dead Nettle. Variegated Dead Nettle. 
Fig. 3612. 
L. maculatum L. Sp. Pl. Ed. 2, 809. 1763. 
Perennial, somewhat pubescent; stems 
mostly slender, commonly branched, de- 
cumbent or ascending, 8’-14° long, Leaves 
crenate or incised-crenate, all petioled, usu- 
ally longitudinally blotched along the mid- 
rib, broadly ovate or  triangular-ovate, 
acute or obtuse, truncate or cordate at the 
base, 1-2’ long, or some of the lower ones 
much smaller and nearly orbicular; clusters 
few-flowered, mainly axillary; calyx-teeth 
lanceolate-subulate, as long as or longer 
than the tube, spreading; corolla 10’-12” 
long, purple-red, its tube short, contracted 
near the base, with a transverse ring of 
hairs within, the lateral lobes of its lower 
lip very small. 
Along roadsides, escaped from gardens, 
Maine and Vermont to Virginia. Native of 
*Europe and Asia. May—Oct. 
4. Lamium 4lbum L. White Dead 
Nettle. Fig. 3613. 
Lamium album L. Sp. Pl. 579. 1753. 
Perennial, pubescent; stems decumbent or 
ascending, rather stout, simple or branched, 
1°-14° long. Leaves ovate, crenate, dentate 
or incised, all petioled, acute or acuminate at 
the apex, cordate or truncate at the base, 
1’-3’ long, or the lower shorter and obtuse; 
clusters mostly axillary; calyx-teeth very 
slender, subulate, spreading, usually longer 
than the tube; corolla white, about 1’ long, 
its tube short, stout, contracted near the base, 
with an oblique ring of hairs within, the lat- 
eral lobes of its lower lip each with a slender 
tooth. 
In waste places, Ontario to Massachusetts and 
Virginia. Also in ballast about the northern sea- 
ports. Naturalized or adventive from Europe. 
Old names, white archangel; day-, blind-, dumb- 
or bee-nettle; snake-flower, suck-bottle. April- 
Oct. 
20. BALLOTA L. Sp. Pl. 582. 1753. 
Perennial pubescent or tomentose herbs, some species shrubby, with dentate or crenate 
leaves, and small bracted flowers in axillary clusters. Calyx tubular-funnelform, 10-nerved, 
5-I0-toothed, the teeth dilated at the base, or sometimes connate into a spreading limb. 
Corolla-tube about as long as the calyx, provided with a ring of hairs within, the limb 
strongly 2-lipped; upper lip erect, concave, emarginate, lower lip spreading, 3-lobed, the 
middle lobe emarginate or obcordate. Stamens 4, didynamous, ascending under the upper 
lip of the corolla, the anterior pair the longer; anther-sacs divergent at maturity. Ovary 
deeply 4-lobed; style 2-cleft at the summit. Nutlets ovoid, smooth. [The Greek name.] 
About 30 species, natives of the Old World, most numerous in the Mediterranean region, the 
following typical. 
aed 
