1264 ARBORETUM AND FRUTICETUM. PART Ill. 
CHAP. LXXX. 
OF THE HALF-HARDY LIGNEOUS OR SUFFRUTICOSE PLANTS 
BELONGING TO THE ORDER COBG:ACEZ. 
~ Cobee‘ascdndens Cav. Icon. Rar. 1. p. 11. t.16., N. Du Ham., 4. 
t.50., and our jig. 1098., is a tendriled climber, well known for 
the rapidity of its growth, the fine glaucous green of its smooth 
leaves and shoots, and the beauty of its large, solitary, axillary, 
nodding flowers, with bell-shaped violet or purple corollas, and 
its large, oval, pendent fruit. Plants should either be raised in 
autumn, and preserved in a pit, and turned out in spring (which 
is the general practice about London), or they may be sown in 
spring, and brought forward in a hot-bed. In mild winters, 
plants, in dry soil, against a conservative wall, may be preserved 
alive by covering them with mats, A plant of Cobce‘a scandens 
against the veranda at the Castle Inn at Slough, in 1806, is said 
to have extended its shoots upwards of 100 ft., on each side of 
the root, in one season. Astonishing effects might be produced 
by this plant in a single season, if it were thought desirable to 
incur a little extra expense. By preparing a large mass of turfy 
loam well enriched with leaf mould, or thoroughly decomposed 
manure, and by mixing this mass with a quantity of small sand- 
stones, asrecommended by Mr. M‘ Nab for theculture of the genus 
Erica, a large fund of nourishment would be produced, Now, 
in order that this nourishment might be rapidly imbibed by the 
roots, it would be necessary to supply it with bottom heat early 
in the season, and with liquid manure from a surrounding 
trench, three parts filled with that material, during the whole 
summer. A plant so treated would cover several thousand 
_ square feet of surface, either of wall, roof, or of the open ground, 
in one season. 
CHAP. LXXXI. 
OF THE HARDY AND HALF-HARDY SUFFRUTICOSE PLANTS BELONGING 
TO THE ORDER CONVOLVULA‘CER. 
THERE area few species of Convélvulus which are technically considered shrubby; and, though 
for all practical purposes they may be treated as herbaceous plants, we shall, for the sake of those 
who wish to gather every thing into an arboretum that can be included in it, here notice two or 
three species. 
 Conudluulus Dorgcnium L., Fl. Gree., t. 
200., and our fig. 1100., is a native of the Levant, 110¢ 
and is common on the road sides near Corinth, 
where it forms a little bush about the height of 
14 ft., producing its fine rose-coloured flowers in 
1099 
June and July. It was introduced in 1806, and 
is occasionally met with in collections. It is suit- 
able for rockwork. 
2 C. Cnedrum L., FI. Grec., t. 200., and our (is) 
z. 1099., is a native of Spain, Crete, &c., with a taal ’ 
shrubby-branched stem, and the whole plant covered with soft silvery down. It was introduced in 
1640.; grows to the height of 2ft. or 3 ft. ; and produces its white and pale red flowers from May to 
September” It is about as hardy as Cnedrum tricéecum (see p. 560.). 
