CHE REFERENCE LIBRARY - Pole Shift Survival Information

THE NlJRSERY-LIST 405
Pterostyrax. SQPncncflcr.
Prop:lg:1 ted 1)). seeds, layers, and greenwood cuttings under glass.
Ptychosperma : II -1 rchnn io&mi.r.
Pueraria. Legum 1 Il0.w.
Propagated by seeds when procurable, division of the roots, and
cuttings. The kudzu vine (P. hirsute, known in the trade a,s P.
Thurrbcrgiana and Dolichos jnpokw) grows readily from seed and
may be multiplied by division of the great root.
Pumpkin ((~“ucurbita, three species). Cucurb~itactlcr.
Propaga,ted by seeds, when the weather is settled; frost-tender.
Pwnica :
Pomegran-ntr.
Puschkinia, Xdamsia. Liliacccr.
Propagation by bulbels and seeds.
Puya. Bro 1)) eliacm.
Propagation as for billbergia, which see.
Pyracantha (often included in (-‘rataqus). Rosacece.
Propaga,ted by seed: ci, by cuttings of ripened wood in fall under
glass, kept in winter in a temperate greenhouse, by layers, and by
grafting on hawthorn or cotoneaster. Seeds should be treated as for
crataegus and may not, germinate the first year.
Pyrethrum. Coiupoaitrr.
The pyrethrums are chrysanthemums aud are propaga.ted as are
other cultivated members of that genus, by seeds and cuttings.
The common garden pyrethrums grow readily from seeds, blooming
the second year or sometimes the first year if started early under
ghass. Increased also by division.
PyroZa (Shin Leaf. Wintergreen). Pyrolace~.
Multiplied by division ; very rarely from seeds and with difficulty.
Pyrostegia (Bign.o~ein renusta) . Bignoniacele.
Propagation by seeds and cuttings as for bignonia, which see.
Pyrus (Apple. Pear). Rosacea?.
The ornamental species and varieties of apples and crabs are
budded or grafted on common apple seedling stocks. La.yers and
green cuttings are occasionally employed for various species and
varieties of Pyrus. See also Apply, Pca.r. It is a good plan to obtain