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DRACOCEPHALUM canescens.
Hoary-leaved Dragon s-hmd.
Natural Order. Labiatæ. Brown prodr. 4i^.
Sect. IV. Stamina 4-fertilia. Corolla bilabiata. Calyx
bilabiatus. Juss. gen. 115.
D R A C O C E PH A LUM . Calyx 5-fidus, 2-labiatus in Mol-
davicà T. subæqualis in cæteris. Corolla fauce inflata, labiata,
superius fornicata, integra in Dracocephalo T, emarginata in
aliis, inferius 3-loba, laciniis lateralibus brevibus erectis, media
majore et productiore, integra aut 2-lobà. Herbce aut rarò^
suffrutices ; flores verticillato-spicati terminales, aut pfiunculi
axillares uni vel multiflori, bracteati bracteis latis interdùm
ciliatis, in D. Virgiuiano angustis minimis. Juss. gen. 116.
D. canescens, floribus verticillatis, bracteis oblongis ciliatis,
foliis oblongis canescentibus : inferioribus serratis ; superioribus
integerrimis, calycibus striatis pubescentibus, tubo
corollæ calyce longiore.
Dracoceplialum canescens. Willden. sp. pi. 3. p . 156. Pers.
syn. 2. p . 133. Hort. Kew. ed. 2. v. 3. p . 420.
Annual. Stem nearly erect, or ascending, bluntly
4-sided, much branched; branches opposite, crossing
each other, clothed with a short white pubescence.
Leaves opposite, petiolate, oblong, blunt, strongly and
numerously nerved underneath, covered on both sides
with a short close canescent pubescence ; lower ones
broadest, and serrated; upper ones narrower, and
entire, becoming nearly linear on the upper part of the
stem. Flowers in whorls round the stem, of a bright
violet blue. Bractes 4, at the base of each vyhorl,
petiolate, oblong, or ovate, concave, and fringed
with spine like bristles. Pedicles short, compressed,
l 2
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