Andorra 7Vurshrtes^ 
^Chestnut Hill, 'Philadelphia 
PICEA, continued 
P. nigra. Black Spruce. ( Lr) A native variety of pyramidal form, not 
unlike P. excelsa. Foliage 'light green. Suitable for light, dry soil, and does 
well in the northern states. 
P. orientalis. Eastern Spruce. ( Lv) Perfectly hardy; form pyramidal; 
foliage dark green, much richer than the Norway Spruce, though resembling it 
somewhat. One of the best evergreens; valuable for group or specimen 
planting. Should be in every collection. 
P. orientalis, var. gracilis. Graceful Eastern Spruce. {VD s) A variety 
dwarfer than Remonti. Form conical and compact; foliage dark green and 
very small. 
P. pinsapo. Spanish Fir. {Ms) One of the most interesting of rare 
conifers. A good grower; form pyramidal; foliage light green ; leaves sharp 
and stiff, being set entirely around the branches. 
P. pungens. Colorado Spruce. {Lr) A noble tree from the Rocky 
Mountains. Hardy in any exposure; a good grower; branches stiff and 
close; foliage light green. A valuable lawn tree. 
P. pungens, var. glauca. Blue Colorado Spruce. {Lr) A form of 
P. pungens with the same general character, but foliage of an exceedingly rich 
silvery blue. One of the most valuable trees for ornamental planting, giving 
a very distinct color note in any situation. (See plate on page 7.) 
P. pungens, var. Kosteriana. Koster’s Blue Spruce. {Lr) A form of 
P. pungens. Foliage steel-blue; color quite uniform, as they have been propa¬ 
gated by grafting. 
P. pungens, var. glauca pendula. Weeping Blue Spruce. (M v) A 
tree of great merit, combining with all the desirable features of the Blue 
Spruce a distinct weeping habit. Rare and interesting. 
PINUS. Pine 
Included under this genus are many of our noblest forest and ornamental 
trees, suitable for all soils and situations; they are, however, rather impatient of 
stagnant moisture, and generally succeed best on good, well-drained land. We 
have been careful to mention only those species and varieties which are known to 
ic perfectly hardy in this climate. As all our trees have been frequently transplanted 
and are well furnished with roots, satisfactory removal is assured. 
P. Austriaca. Austrian Pine. {Lr) Rounded form; vigorous growth; 
glossy dark green leaves. One of the most important for specimen or mass 
planting, and exceptionally good for windy exposures and as a shelter to pro¬ 
tect less hardy varieties. It is also a good tree near the seacoast. (See plate 
on page 17.) 
P. Cembra. Swiss Stone Pine. ( Ss) A perfectly erect form, regularly 
ranched from ground to top, forming a handsome conical tree. Long foliage 
of silvery green. (Sec plate on page 17.) 
P. excelsa. Bhotan Pine. {Lr) A noble’tree. In general it resembles 
ie lute line, but its longer, more silvery leaves are pendulous and grace- 
u . it is not particular as to soil or situation, but requires space for proper 
development. Makes a grand specimen. 
