OF ORNAMENTAL PERENNIALS. 
137 
28— PENTSTEMON HETEROPHYLLUM, LindL THE VARIABLE-LEAVED PENTSTEMON. 
Engravings Bot. Reg., t. 1899 ; and om fig. 4, in PL 88. i acuminated ; corolla ventricose, beardless ; sterile stamen glabrous ; 
Specific Character. — Leaves glaucescent, quite entire ; lower ones anthers sagittate, fringed at top. — ( G. Don.) 
linear-lanceolate ; superior ones linear ; raceme twiggy ; sepals ovate, | 
Description, &c. — The stems of this species are woody at the base, and yet so slender, that if not 
supported artificially, they fall on the ground, and throw out a great number of side shoots. The colour of the 
flowers is of a reddish purple when expanded, and of a dull yellow when in the bud. The species is quite hardy, 
and it is a native of California, whence it was introduced in 1834. 
29.— PENTSTEMON SCOULERI, Dougl. DR. SCOULER’S PENTSTEMON. 
Engravings. — Bot. Reg., t. 1277 ; and our fig. .3, in PI. 85. I obovate-lanceolate, serrulated ; upper ones entire, obtuse. Flowers 
Specific Character. — Plant suffruticose at the base. Leaves I racemose; corolla ventricose ; segments serrulated ; anthers woolly. 
Description, &c. — This species is a native of the Kettle Falls of the Columbia, where it was found by 
Douglas, and sent home by him in 1827. In its native country it is a shrub, but in England it is herbaceous, the 
stem becoming slightly woody at the base. It is propagated either by seeds or by cuttings. 
Section III. — Sterile filament glabrous ; anthers glabrous ; leaves narrow., entire., glaucous ; fiowers panicled. 
30.— PENTSTEMON BARBATUM, Nutt. THE BEARDED PENTSTEMON. 
Synonymes. — Chelone barbata, Cav. ; C. formosa. Wend. ; C. 
ruelloides, Andr. 
Engravings. — Bot. Reg., t. 116 ; Bot. Rep., t. 34 ; and om fig. 5, 
in PI. 88, under the name of Chelone barbata ; and of the variety 
cameum, Bot. Reg. for 1839, t. 21. 
Specific Character. — Glaucous ; leaves entire, radical ones spatu- 
late, petiolate, acute ; stem leaves sessile, lanceolate. Flowers pen- 
dulous, paniculate ; lower lip of the corolla bearded, revolute, three- 
parted. 
Description, &c.— This species and its variety are both natives of Mexico. The species was introduced 
in 1794 , by Sir Joseph Banks, and it was for many years, under the name of Chelone barbata, a very favourite 
plant in flower-gardens. The variety, which is of a pale flesh-colour, was introduced in 1838 ; but it is very 
inferior in beauty to the species. Both are readily increased by cuttings, or by seeds ; though the latter, even 
if sown as soon as ripe, will not vegetate before spring. Though both plants are called quite hardy, it is 
sometimes necessary to protect them during the winter, as they never die quite to the ground, and the lower 
part of the stem is liable to be injured either by hard frost, or a long continuance of wet. Most flower-gardeners, 
however, make cuttings every year in the autumn, which they preserve during the winter in pots. 
31.— PENTSTEMON CENTRANTHIFOLIUS, Dec. THE VALERIAN-LEAVED PENTSTEMON. 
Synonyme. — Chelone Centranthifolia, Benth. 
[ Engraving. — Bot. Reg., t. 1737. 
Specific Character. — Very smooth, glaucous ; leaves ovate-lanceo- 
late, entire ; cordate and stem-clasping at the base; panicle elongated, 
corolla tubular, pendulous, very smooth, naked at the mouth ; sterile 
filament not bearded. 
Description, &c. — This species is nearly related to the last, but it differs from it in the mouth of the corolla 
being destitute of a beard, and the leaves being of a different shape. It is a native of California, whence it was 
introduced in 1832 ; and it is quite hardy in British gardens. 
VOL. II. 
