latter end of the summer. Our drawing was made in the 
Garden of the Horticultural Society, in September last. 
It is seldom we have reason to differ in opinion upon 
the limits of genera from our friend M. Kunth; but on the 
present occasion we can by no means assent to his combi- 
nation of Chelone and Pentstemon. Chelone has a ringent 
corolla, seated among round imbricated bractez ; its anthers 
are fastened together by a dense mass of wool; and its 
seeds havea membranous margin. Pentstemon, on the con- 
trary, has a bilabiate corolla, with only a single bractea, 
which is at a considerable distance from it; its anthers are 
distinct from each other, and either perfectly smooth, or at 
most only slightly pubescent; and its seeds are destitute 
of a membranous margin. The habit of the two genera is 
also strikingly different. It is possible that these distinc- 
tions, which, however, are not now stated for the first time, 
have escaped the notice of M. Kunth, for he refers the plant 
called Chelone barbata, which is a Pentstemon, to the 
section of which Chelone is the type, relying, as it seems, 
upon the differences in the sterile filament, which are of 
very little value. 
Stem erect, a foot and a half high, slightly branched, 
round, minutely pubescent. Leaves ovate, acuminate, 
pinnatifid, about 23 inches long, with their segments cut, 
on the upper surface minutely downy, beneath paler and 
wholly smooth. Fowers axillary, panicled, with upright, 
few-flowered panicles. Pedicels glandular. Calya five- 
leayed, with oblong-lanceolate, somewhat pubescent, leaf- 
lets. Corolla purple, ventricose, almost wholly smooth on 
the outside, bilabiate, the upper lip erect, two-lobed, the 
lower three-lobed, and very slightly pilose. Upper filaments 
thickened at the base. Amthers smooth, horse-shoe-shaped, 
resupinate, the valves fringed towards their apex. Rudi- 
ment filiform, longer than the stamens, bearded at the apex 
with a very few hairs. 
J. i, 
