The present is native of Mexico; and though it does 
not appear in either edition of the Hortus Kewensis, we find 
by Sweet’s Hortus Suburbanus Londinensis that it has been 
introduced ever since 1803. The drawing was taken from 
a yearling plant at the nursery of Messrs. Whitley, Brames, 
and Milne, at Fulham, where it was cultivated in the open 
ground. ‘The flowers are said to be larger on old plants 
and the foliage smaller. The seeds which produced the 
Specimen we saw, had been received from Madrid by the 
above nurserymen. 
Perennial. Stem 2-6 feet high, suffruticose, branching, 
bluntly 4-cornered, 4-furrowed, hispid. Leaves opposite, 
cordate, acute, crenate, wrinkled, viscous, villous, soft, 
rank smelling, very bitter, 2-4 inches long, with a hispid 
petiole about half their length, close below the base of which 
are two small parallel round glands of a pale green colour. 
Spikes terminal, upright, long. Flowers verticillate (in 
whorls), shortly pedicled.  Bractes deciduous, opposite, 
under the whorls, lanceolate, cuspidate, striate, subserru- 
late, ciliate, very widely spread, reflectent, purplish. Calyx 
campanulate, compressed, generally ten-streaked, roughly 
furred, bilabiate, with the lips of equal length and upright ; 
upper one roundish, rather pointed, large; lower twoparted. 
with semiovate pointed segments. Corolla villous on the 
outside; tube white; fawx white and twice longer than the 
calyx; limb deep blue, ringent: casque oyate, oblong, emar- 
ginate (notched), connivent: lip 3-lobed, outspread, longer 
than the casque, middle segment nearly round, emarginate, 
much the largest, lateral ones obtuse, small, placed near 
to the middle one. Stamens and Pistil enclosed in the 
casque. 
