Lamium amplexicaule. Henbit Dead-Nettle. 
LAMIUM Linneei Gen. Pt. Didynamia Gymnospermia. 
Corolla lab. fuper. integrum, fornicatum ; lab. inf. 2-lobum ; faux utrinque 
margine dentata. 
Rail Syn. Gen. 14. Suffrutices et Herbas verticillatae. 
LAMIUM amplexicaule foliis floralibus feflilibus amplexicaulibus obtufis. Linnai Syfl. Vegetab. p. 446. 
Spec. Plant, p. 203. Flor. Suecic. p. 809. 
LAMIUM foliis radicalibus petiolatis, lobatis, fuperioribus caulem ambientibus* rotunde incilis. 
Haller hifii. n. 273. 
LAMIUM amplexicaule. Scopoli FI. Carniol. n. 702. 
LAMIUM folio caulem ambiente majus et minus. Bauhin pin. 231. 
ALSINE hederula altera; Gerard, emac. 616. 
ALSINE hederula folio major. Parkinjon 762. 
Raii Syn. p. 240. Great Henbit. 
Hudfon. FI. xingl. p. 225. 
Lightfioot FI. Scot. p. 309. 
ROOT annual, fibrous, and of a whitilh colour. 
STALKS, feveral from one root, nine inches or a foot 
high, nearly upright, fquare, fmooth, with 
a few oppofite branches. 
LEAVES oppofite, the lower ones Handing on foot- 
ftalks, of a roundilh heart-lhaped figure, 
deeply crenated, veiny, flightly hairy; the 
foot-ftalks grooved on the upper part, and 
longer than the leaves ; the upper ones lemi- 
orbicular, cut in at the edges, the fegments 
fomewhat blunt. 
FLOWERS growing in whirls to 15, of two kinds, 
perfedt and imperfedt ; the imperfedt ones 
Ihort, a little longer than the Calyx, the tips 
very red, hairy, and clofed, fig. x, 2 ; the 
perfedt ones four times the length of the Ca- 
lyx, of a bright purple colour, and generally 
breaking out from the tops of the {talks, fig. 3. 
CALYX in the perfedt ones , a Perianthium with five 
teeth, tubular, fcarce manifeftly ftriated ; the 
teeth equal, acuminated, and hirfute, fig. 4. 
COROLLA : the Tube very long, cylindrical, nearly 
upright, the mouth inflated, the edge turned 
back, fpotted, and marked with two little 
teeth ; the neck a little prominent ; the up- 
per lip arched, hirfute, and nearly entire ; 
the lower lip turning down, having two lobes, 
which are fpotted with purple, fig. 5, 6, 7, 8. 
STAMINA : four Filamen ts, two long and two Ihort, 
of a white colour, placed under the upper lip : 
Anthera: hairy, filled with a faffron-colour- 
ed pollen, fig. 9. 
PISTILLUM: Germen divided into four parts: 
Style filiform, of the fame length and fitua- 
tion with the Stamina : Stigma bifid and 
acute, fig. 10. 
SEEDS four, in the bottom of the Calyx, with a lit- 
tle appendadge to each, fur face covered with 
white {pots, fig. 11, 12. 
IN the flowering of this plant, there are fome circumftances well deferving of attention. 
Two kinds of blofloms are obfervable on it ; the one a very fmall Ihort one, like the rudiments of a flower, a 
little longer than the Calyx, with the mouth clofed, very hairy, and of a bright red colour ; the other a flower like 
that of the Lamium purpureum, but much longer. 
The firft of thefe blofloms, which fo far as refpedts the Corolla, are evidently imperfedt, appear very early in 
the Spring, in February and March : the long and perfedt blofloms do not make their appearance till May or June, 
when they are obfervable on the tops of the {talks : and if the progrefs of the flowers be watched, the Corolla will 
be found to be gradually enlarged in different blofloms, till the weather being fufficiently warm, they come forth 
fully formed. 
Thofe who have attended to the changes of Infedts, mult have obferved, that if a Caterpillar has, previous to 
its changing into the chryfalis or pupa flate, been deprived of its proper quantity of food, the Fly has come forth 
perfedt in all its parts except the wings, which are crumpled up, and never expand ; fo this plant, for want of 
a fufficient degree of warmth, is not able to pulh forth an expanded Corolla ; yet being perfedt in every other part, 
the fpecies fuffers no diminution. 
I had for feveral years imagined, that the imperfedt flowers were the rudiments of the long blofloms ; but on a 
more minute enquiry, I found that they never grew any longer, but decayed. I was then ready to fuppofe that 
they were barren flowers ; but on difledting them, I found that each had both Stamina and a Piftillum. 
Since the above oblervations were made, I find, on looking into the Flora Suecica, that Lin naius takes notice of 
its fcarce ever producing perfedt blofloms in Sweden. 
Here then is a procefs l'omewhat fimilar to what we obferve in the Violet and fome other plants, where perfedt 
feed is produced, although the Corolla be not perfectly formed. 
It grows with us frequently on walls ; and in the greateft abundance in the fields and gardens about Batterfea and 
Lambeth , where the foil is light. 
KALUA annua, nbrola, albida. 
CAULES ex una radice plures, dodrantales, aut peda- 
les, fuberedti, quadrati, 1 ceves, ramis paucis 
oppofitis. 
FOLIA oppofita, inferiora petiolata, fubrotundo cordata, 
incifo-crenata, venofa, hirlutula, petiolis fu- 
perne concavis foliis longioribus, fuperiora 
feflilia, femiorbiculata, incifa, laciniis obtufiuf- 
culis. 
FLORES verticillati ad 1 5, duorum generum, manci 
fcilicet et perfedti, manci breves, calycibus 
paulo longiores, apicibus ruberrimis hirfutis 
claufis, fig. 1 , 2; perfedti calyce quadruplo 
longiores, purpurei, e fummitatibus caulium 
utplurimum erumpentes, fig. 3. 
CALYX in perfediis, Perianthium quinquedentatum, 
tubulofum, vix manifefte ftriatum, dentibus 
aequalibus, acuminatis, hirfutis, fig. 4. 
COROLLA: Tubus praelongus, cylindraceus, fub- 
eredtus, faux inflata, margine reflexa maculata, 
denticulis duobus notata, collum prominulum, 
labium 1'uperius fornicatum, hirfutum, fub- 
integrum ; labium inferius deflexum, bilobum, 
maculis purpureis notatum, fig. 5, 6, 7, 8. 
STAMINA : Filamenta quatuor, quorum duolon- 
giora, alba, fub labio fuperiore : Anthera: 
pilofae, polline croceo refertae, fig. 9. 
PISTILLUM : Germen quadrifidum : Stylus fili- 
formis, longitudine et fitu flaminum : Stig- 
ma bifidum, acutum, fig. 10. 
SEMINA quatuor in fundo calycis, appendiculata, 
pundtis albis notata, fig. 1 1 , 12. 
