404 THE CULTIVATED EVERGREENS 



2BT Plumbago capensis var. alba. S. Afr. Cult, in Fla. and Calif, as shrubby vine 



to 4 ft. 

 2 Podocarpus alpina. Shrub or small tree to 15 ft. Australia. Rare in cult. 



Hardy to Phila. 

 Podocarpus koraiana. See Cephalotaxus drupacea var. fastigiata. 

 2 Podocarpus Totarra. Tree to 90 ft. New Zeal. Rare in cult. 



2B Polygala Dalmaisiana (P. myrtifolia var. Dalmaisiana, Hort. Also P dal- 



macina). A free blooming shrub 3-5 ft., of garden origin. Cult. Calif. 

 Popinac. See Acacia Farnesiana. 

 IBR Potentilla tridentata. Three-toothed Cinquefoil. Ground-cover. N. E. N. 

 Amer. Excellent but little-known plant for the rock-garden. 

 Princes Pine. See Chimaphila umbellata. 

 Privet, Amur River. See Ligustrum amurense. 

 Privet, California. See Ligustrum ovalifolium. 

 Privet, English, European or Common. See Ligustrum vulgare. 

 2B Prunus caroliniana (P. sempervirens. Cerasus caroliniana). Wild Mock-Orange 



of the South. Tree 20-40 ft. S. C. to Fla. and Tex. Cult. South and Calif. 

 2B Prunus ilicifolia (Cerasus ilicifolia). Wild or Evergreen Cherry. Mt. Holly. 



Bush or small tree to 30 ft. San Francisco to Low. Calif, and cult. South. 

 Prunus ilicifolia var. integrifolia. See P. Lyonii. 

 Prunus integrifolia. See P. Lyonii. 

 2B Prunus Laurocerasus (P. officinalis) in var. also (Cerasus Laurocerasus) . 



Cherry or English Laurel. Bush or small tree to 20 ft. S. E. Eu., N. Persia. 

 Cult. South and N. W. coast. 

 IBPR Prunus Laurocerasus var. schipkaensis (Cerasus Laiu-ocerasus var. schipkaen- 

 sis). This is the lowest and hardiest form of the Cherry or English laurel. 

 The type is a bush or small tree in S. E. Eu. to N. Persia. 

 2B Prunus lusitanica (Padus lusitanica). Portugal Laurel. Shrub from Spain. 



Cult. South and West Coast to 20 ft. 

 2B Prunus Lyonii (P. integrifolia. P. ihcifolia var. integrifolia). Islands Cherry. 



Bush or small tree. Islands off S. Calif. Cult. Calif. 

 Prunus officinalis. See P. Laiu-ocerasus. 

 1 Pseudotsuga taxifolia (P. mucronata. P. Douglasii). Douglas Spruce. Red 



Fir. Pyramidal tree to 200 ft. Brit. Col. to Mex. west to Mont, and Colo. 

 Still new in the N. E. but very promising. 

 2BT Psidium Cattleianum. Strawberry Guava. Large Brazilian shrub. Cult, in 



Fla. and Calif, to 6 ft. 

 2BT Psidium Guajava. Guava. Arborescent shrub or small tree to 30 ft. Mex., 

 Cent. Amer. 

 Ptychosperma Alexandrse. See Archontophcenix Alexandrae. 

 Pummelo. See Citrus grandis. 

 2B Pyracantha angustifolia (Cotoneaster angustifolia). Shrub to 6 ft. S. W. 



China. Cult, in Calif. 

 2B Pyracantha coccinea (Cotoneaster Pyracantha. Crataegus Pyracantha. Mes- 



pilus Pyracantha). Fire Thorn. Fiery Thorn. Everlasting Thorn. Shrub 

 to 20 ft. Italy, W. Asia. Cult. South and N. W. coast. 

 IBPR Pyracantha coccinea var. Lalandii (Cotoneaster cremdata). More vigorous 



and hardier than the type. Cult. South and N. W. coast. 

 2B Pyracantha crenulata (Cotoneaster crenulata. Crataegus crenulata). Hima- 



layas. Shrub to 6 ft., more tender than P. coccinea. Cult. W. coast. 

 2BT Pyrostegia venusta (Bignonia venusta). Flame-Flower. Tendril-climbing 

 vine. Brazil. Cult. Calif, and South. 



