CHE REFERENCE LIBRARY - ZetaTalk

THE NlJRSERY-LIST 405Pterostyrax. 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, andcuttings. The kudzu vine (P. hirsute, known in the trade a,s P.Thurrbcrgiana and Dolichos jnpokw) grows readily from seed andmay 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 underglass, kept in winter in a temperate greenhouse, by layers, and bygrafting on hawthorn or cotoneaster. Seeds should be treated as forcrataegus and may not, germinate the first year.Pyrethrum. Coiupoaitrr.The pyrethrums are chrysanthemums aud are propaga.ted as areother cultivated members of that genus, by seeds and cuttings.The common garden pyrethrums grow readily from seeds, bloomingthe second year or sometimes the first year if started early underghass. 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 arebudded or grafted on common apple seedling stocks. La.yers andgreen cuttings are occasionally employed for various species andvarieties of Pyrus. See also Apply, Pca.r. It is a good plan to obtain