322 
LABIATJE. (MINT FAMILY.) 
2. N. Glcctioma, Benth. (Ground Ivy. Gill.) Creeping 
and trailing; leaves petioled, round kidney-shaped, crenate, green 
both sides ; corolla thrice the length of the calyx, light blue. (Gle- 
choma hederacea, L.) — Shaded places, perfectly naturalized in waste 
grounds. May-Aug. — Anthers with the cells diverging at a right 
angle, each pair approximate and forming a cross. 
13. DBACOCEPHALUM, L. Dragon-head. 
Calyx tubular, 13 - J5-nerved, straight, 5-toothed; the upper 
tooth much largest.. Corolla dilated in the throat, 2-lipped; the 
upper lip slightly arched and notched ; the lower spreading, 3- 
cleft, with its middle lobe largest and 2-cleft or notched at the 
end. Stamens 4, ascending under the upper lip ; the lower pair 
shorter ! Anthers approximate by pairs, the cells divergent. — 
Whorls of flowers mostly spiked or capitate, and subtended by 
awn-toothed or fringed leafy bracts. (Name from 8paKa>v, a drag¬ 
on, and K€<f>a\fj , head, alluding to the form of the corolla.) 
1. D. parvi flora ill, Nutt. (Small-flowered Dragon¬ 
head.) Biennial; stem erect, somewhat branched, leafy; leaves 
ovate-lanceolate, sharply cut-toothed, petioled ; whorls crowded in a 
terminal globular or oblong capitate spike ; upper tooth of the calyx 
ovate, nearly as long as the bluish corolla. — Rocky places, Water- 
town, New York, Dr. Craice. May - Aug. — Plant 8' - 20' high. 
14. LOPHANTHUS, Benth. Giant Hyssop. 
Calyx tubular-bell-shaped, 15-nerved, oblique, 5-toothed, the 
upper tooth rather longer than the others. Corolla 2-lipped ; the 
upper lip nearly erect, notched ; the lower somewhat spreading, 
3-cleft, with the middle lobe broader and crenate. Stamens 4, 
exserted ; the upper pair declined ; the lower ascending, shorter! 
Anther-cells nearly parallel. — Perennial upright herbs, with pe¬ 
tioled serrate leaves, and small flowers crowded in terminal spikes. 
(Name from \o(j)os, a crest, and avBos, a flower.) 
1. 1|. nepetoides, Benth. Smooth , or nearly so; leaves 
ovate, somewhat pointed ; calyx-teeth ovate , rather obtuse, little short¬ 
er than the pale greenish-yellow corolla. (H/ssopus nepetoides, L.) 
Borders of woods, W. Vermont to Wisconsin. Aug. — Stem stout, 
4°-6° high, sharply 4-angled. Leaves 2' — 4 f long, coarsely crenate* 
toothed. Spikes 2' -4' long, crowded with the ovate pointed bracts. 
2. Ij. scropluilarisefolius, Benth. Stem and lower sur¬ 
face of the ovate acute leaves more or less pubescent ; calyx-teeth lan- 
