=DIA 
OF HORTICULTURE. 429 
 Cystopteris continued. 
ightly toothed. sori small, two to twelve to а pinnule. Moun- 
m m of Europe (Teesdale, England) and Asia Minor, 
C. bulbifera (bulb-bearing), sti. 4in. to 6in. long. fronds бїп. to 
12in. long, Жум Jin. broad at the widest Ne ovate-lanceolate, 
often much elongated upwards, bi- or tripinnatifid ; lower pinnules 
lanceolate, 2in. to 3in. long; segments linear-obJong, very slightly 
toothed. sori two to twelve to a pinnule. North America, 1638. 
Large fleshy bulblets are formed in the axils of the upper pinnz, 
which fall to the ground and become new plants. 
.. топаз 4in. to Bin, long, 
C. fragilis (fragile).* sti. 2in. to 4in. 10: 
ljin. to oe Tagilo) ovate-lanceolate, tripinnatifid ; pinnz 
lin. to 13іп. long, żin. to Zin. broad; pinnules oblong-rhomboidal ; 
Pp 
segments bluntly or sharply toothed. sori two to twelve to a 
innule. Tem te regions of both Northern and Southern 
ое This elegant little species is admirably adapted 
for growing in fern cases ; it has numerous more or less distinct 
varieties, the best of which are described below. Other forms 
are interrupta, obtusa, and sempervirens. 
C. f. angustata (narrow). Whole frond attenuated, and some- 
times even ternera Rarely exceeding 9in. in height. 
C. f. dentata (dentate). fronds bipinnate, bluntly toothed. sori 
very close to the margin. `h. біп. 
C. f. Dickieana (Dickie’s). fronds 4in. to 5in. in height, rich 
dark green ; pinnze all bending down somewhat, and yere 
paon other; pinnules slightly and bluntly toothed. Ап elegan 
orm. 
C. montana (mountain), 
fronds about 6in. each way, deltoid, quadripinnatifid ; 
pinnules deltoid-lanceolate, lin. to liin. long, about àin. broad: 
according to some, 
from Cythnus, one of the Cyclades, where some of the 
honeyed. Leaves one to three-foliolate, or absent; stipules 
minute. Two species (27. canariensis and C. racemosus) 
greenhouse decoration, in spring ; 
most of the others are either hardy trees, or shrubs, 
of the easiest possible culture. The latter are readily 
increased by seed, which are generally produced in 
abundance; or by layers. Some of the rarer kinds may 
be grafted on a commoner stock, or on seedling plants of 
the allied genus, Laburnum. 
Cultivation of Greenhouse Species. 
fected, in spring, by cuttings of the young wood, which, 
if taken when about 3in. long (with a heel preferred), 
and kept in a close temperature of about 55deg., in order 
should be seen to, and the plants returned to a similar 
place, and kept syringed. 
i be admitted, and a thin shading 
summer. The growing season will be com- 
pleted about August; the plants should then be placed 
outside until the appearance of frost. Keep quite cool 
all the winter, and gradually introduce a few specimens to 
a warmer house, in January, when the flowers will soon 
open. A succession may be kept up, if plants are avail- 
able, until June. Turfy loam, with a small proportion of 
lumpy peat, and some sharp sand added, forms a suitable 
compost; and the plants, when opening their flowers, are 
much benefited by doses of liquid manure. C. racemosus 
forms nice little specimens, in 5in. ог біп. pots, for room 
decoration, where they keep good a long time. They may 
be grown on to form plants 3ft. high and nearly 
as much through. С. canariensis requires similar treat- 
ment, but does not grow quite so freely. It is very 
useful for flowering later in the season than the other 
species noticed. 
С. Adami. Se Laburnum Adami 
ў xao a 
Cytisus —continued. 4 
C. albus (white) Л. whi in fascicles, disposed in 1 racemes, 
May. 1. — and oliate, sessile; leaflets 
silky. Branches terete, twiggy. А. 6ft. to lOft. ' 
Portugal, 1752. Hardy. | 
C. alpinus. See Laburnum alpinum. 
C. Ardoini (Ardoino's). Л. yellow, one to six in the axils of each 
leaf, usually secund ; calyx campanulate, scarious in upper half, 
hairy ; lips divergent; pedicels about twice the len of the 
calyx, without bracteolm, hairy. Spring. i trifoliolate ; leaflets 
obovate, hairy, small, silky when young. Stemsrod.like, generally 
decumbent, many springing from a knotted and twisted stock. 
А. 4in. Mountains of the Maritime Alps, 1857. An extremely 
pretty species, somewhat resembling Genista. (Fl. Ment. 58.) 
austriacus Арыш). Л. yellow, terminal, somewhat um- 
bellate. June. 1., leaflets lanceolate, attenuated at both ends. 
Branches twiggy, terete, and, as well as the leaves, clothed with 
adpressed strigose pubescence, 7. 2ft. to 4ft. East Europe, 1741, 
ardy. 
C. biflorus (two-flowered). Л. yellow, oblong, about 1{їп. long, 
„ 
lo: than the leaves, parallell ired ; ped very 
thick; calyx pale green, vane AE еч villous, twice 
than the деч Ma 
ressed, shallowly bilabiate; lips straight, contracted. . 
р ternate, about lin. long, silkily furred erneath ; leaflets 
elliptically-oblong, rather pointed, nearly of the same length as 
the petiole, with a small mucro ; petiole silkily furred. Branches 
smooth, silkily furred, loosely and sparsely-leaved, h. 3ft. 
Hardy deciduous. (B. К. 308.) 
