af resembles that of _H. glabra_ (see
Fig. 51), but the colour is a lighter green. All the genus are of an
astringent nature, but this species is remarkably so, and in its native
country has earned for the family the name of "Alum-root."

For cultivation and flowering period see _Heuchera_.

Heuchera Cylindrica.

CYLINDRICAL-SPIKED HEUCHERA; _Nat. Ord._ SAXIFRAGACEAE.

This is much in the way of _H. Richardsoni_, with the distinction
indicated by the name, the flowers being arranged evenly round the spike
like a cylinder.

For cultivation and flowering period see _Heuchera_.

Heuchera Drummondi.

DRUMMOND'S HEUCHERA; _Nat. Ord._ SAXIFRAGACEAE.

A tall kind, with leaves of handsome shape (heart-shaped and lobed) and
greener than most varieties.

Cultivation and flowering period are described under _Heuchera_.

Heuchera Glabra.

SMOOTH HEUCHERA; _Nat. Ord._ SAXIFRAGACEAE.

[Illustration: FIG. 51. HEUCHERA GLABRA.

(One-sixth natural size.)]

This was introduced in 1824 from North America. The foliage is bold and
abundant; the illustration (Fig. 51) not only gives a good idea of the
form and habit of foliage, but fairly represents the whole genus, as
seen during the late (1882) season. This species has dull pinkish
flowers; the scapes have a few leaves; root leaves are 2in. to 5in. in
diameter, heart-shaped, lobed, toothed, smooth, and of a dark
bronzy-green colour. The leaf stalks are long and slender; the habit
very neat.

Cultivation and flowering period are described under _Heuchera_.

Heuchera Lucida.

SHINING-LEAVED HEUCHERA; _Nat. Ord._ SAXIFRAGACEAE.

A very dwarf species, not more than 3in. or 4in. high; the foliage a
clear bright green, nearly kidney-shaped, lobed, and roundly toothed.
The fresh appearance of its prostrate leaves, which are 2in. across,
forms a pleasing object in mid-winter.

Cultivation and flowering period, as given under _Heuchera_.

Heuchera Metallica.

_Nat. Ord._ SAXIFRAGACEAE.

This was presented to me in 1881 by a lady, who informed me that it was
introduced by the late Miss Hope. It is a beautiful plant; the hues
somewhat justify the name, but to the touch the leaves are more like a
soft fabric, as cloth or velvet. The flowers are of no value, but the
foliage is bloom of no mean order, so much so, that everyone stops to
admire this handsome plant.

Cultivation and flowering period, as given under _Heuchera_.

H