CHE REFERENCE LIBRARY - Pole Shift Survival Information

THE
NURSERY-MANUAL
peach, while on the plum they may persist twenty-five years or
more. See Almoll,d.
The ornamental cherries, peaches, and the like, are propagated
in essentially the same wa,y as the fruit-bearing varieties. P. Lauro-
W~CCSU.S and P. IvsitanGx, the cherry laurel and Portugal laurel,
may be propagated by short cuttings of ripened wood, in a cool
greenhouse in autumn. P. Pkardii propagates by cuttings of the
soft wood and, with more difficulty, from cuttings of dormant wood.
Soft cuttings succeed well with many of the double-flowering plums
and cherries, if the wood is grown under glass. See Apricot, Cherry,
Pench, Plum.
Pseuderanthemum. Acanthac~~.
Propagated by greenwood cuttings any time from March to
(J u nc . To this genus are now referred the plants commonly known
as Eranthemum.
Pseudolarix (Golden Larch). Enaceae.
Should be raised only from seeds ; if grafted on its own roots
or on common larch, it rarely grows into a symmetrical tree.
Pseudotsuga. Pimcm.
Propagated by seeds, as for abies and pinus ; varieties may be
grafted on the type.
Psidium : G’uaza.
Psoralea. Lqzl n&osce.
Propagated by seeds, divisions and cuttings of growing shoots
under glass. The tuberiferous species, as the “ pomme blanche ” or
Indian potato (63. escuknia), are increased by the tubers or divisions
of them.
Ptelea (Hop Tree). Rutace@.
Multiplied by setlds, sown in autumn or stratified, and also by
layers. The varieties may be grafted on the common forms in spring
under glass or budded in summer on seedlings of the type.
Pteris (Brake. Bracken). Polypod,iacet-e.
Easily grown from spores and by division of the rhizomes.
Ferns, page 312.
Pterocarya. Jugla~~.dace~.
Handled by seeds sown in autumn or stratified,
qnd layers.
See
and by suckers