42 
MOUNT ARBOR NURSERIES. SHENANDOAH, IOWA 
FIR. Abies 
Balsam Fir (A. Balsamea) — A very erect, 
regular pyramidal tree with dull, dark 
green foliage; rapid growth and very 
hardy. 
Concolor Fir (A. Concolor) — A very beau- 
tiful species with yellow bark on the 
young branches; leaves green, arranged 
in double rows; equal in color and 
beauty to the Colorado Blue Spruce. 
JUNIPER. Juniperus 
Irish Juniper (J. Communis, var. Hiber- 
nica) — A distinct and beautiful variety 
of erect, dense conical outline, resem- 
bling a pillar of green. 
Red Cedar (J. Virginia) — A well-known 
native tree; varies much in habit and 
color of foliage; very attractive in win- 
ter when the golden bronze of the young 
growth contrasts with the dark green 
of the older. 
Savin Juniper (J. Sabina) — A dwarf, 
spreading shrub with trailing branches; 
thrives in poor soils and is valuable for 
rock work. 
Sweedish Juniper (J. Communis, var. 
sueciea) — A small sized handsome pyra- 
midal tree with yellowish-green foliage; 
quite hardy. 
PINE. Pinus 
Austrian or Black Pine (P. Austriaca) — A 
native of Syria; tree robu.st. hardy and 
spreading; leaves long, stiff and dark 
green; rapid growth; very valuable for 
this country. 
Scotch Pine 
American Arbor Vitae (See page 41) 
Bull Pine (P. Ponderosa, var. Scopulor- 
ium) — Forms a ."tout, spreading tree; a 
rapid grower; branches heavy and rough 
coated with bark; foliage dark green, 
the needles growing out at right angles 
to the wing; very hardy. 
Jack Pine (P. Divaricata) — The most 
northern of all American pines; valued 
for its extreme hardiness and vigor; 
withstands long drouths and hot dry 
winds; of rather irregular and shrubby 
growth; foliage bright green, needles 
short and stiff. 
Red Cedar— See Juniper. 
Scotch Pine (P. Sylveslrus) — ^A native of 
Rurope; a fine robust, rapid-growing 
tree with stout, erect shoots and silvery- 
green foliage; very hardy. 
White Pine (P. Strobus)— The most orna- 
mental of all our native pines, foliage 
light, delicate silver.v green; will grow 
in the poorest of sandy soils; a long- 
lived tree and rapid grower. 
SPRUCE. Picea 
Black Hills Spruce (P. Nigra)— A beauti- 
ful tree with di ooping branches and fine 
yow-like foliagp; perfectly hardy. 
Colorado Blue Spruce (P. Pungens) — ^One 
of the most beautiful and' hardy of all 
the spruces; in form and habit similar 
to the White Spruce; foliage a rich light 
bluish-green. 
