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similar to the prostrate plants of the Maine coast which possibly are 
still without a name. In this country the prostrate Juniperu^ virgin- 
iana is not known in cultivation, and in this Arboretum there are only 
a few small grafted plants of the tall-stem.med specimen at Kenne- 
bunkport. This Juniper well deserves the attention of the lovers of 
hardy conifers. 
Juniperus communis, var. depressa. This is a dwarf form of the 
common Juniper and forms broad masses of stems ascending from a 
prostrate base and covered with linear, sharp-pointed, dark blue-green 
leaves marked on the upper surface by broad white bands. This dwarf 
Juniper is very common in the northeastern states on dry gravelly 
hills and in old pastures, sometimes almost entirely occupying the 
ground to the exclusion of other plants. In nurseries this plant is 
sometimes called Juniperus canadensis or J. nano canadensis. The 
erect-growing form, which is more common in Europe than in the 
United States, very rarely occurs in New England and sometimes 
grows on the lower slopes of the Appalachian Mountains as far south 
as North Carolina. On the hills in the neighborhood of the Delaware 
Water Gap in Pennsylvania this upright form seems more abundant 
than in other parts of the country and to be the prevailing Juniper. 
Erect forms of J. communis, known in gardens as the Swedish or 
Irish Junipers, are often planted in the m.iddle states but are not very 
satisfactory in Massachusetts. There is a form of the variety depressa 
(var. aurea) with yellow-tipped branches which has been a popular 
garden plant in the United States for several years. The variety mon- 
tana is the dwarfest of the prostrate forms of J. communis, rarely 
growing more than two feet high and forming dense mats of prostrate 
stems. From variety depressa it may also be distinguished by its 
shorter and broader incurved leaves. This little plant grows on the 
Atlantic coast from Maine to Newfoundland, on the Rocky Mountains, 
in Alaska, and through northern Asia and Europe. It is sometimes 
called Juniperus nana, J. alpina and J. sibirica. On the high moun- 
tains of Japan there is a form of J. communis (var. nipponica) with 
wide-spreading and ascending or often prostrate stems which is similar 
to the variety montana. Nothing is known of the value of this Jap- 
anese variety in gardens here as it does not appear to have been in- 
troduced until Wilson sent seeds to the Arboretum two years ago from 
which only a single plant has yet appeared. 
Juniperus horizontalis. This is one of the handsomest of the pros- 
trate Junipers and an excellent garden plant. It has procumbent and 
prostrate stems which often develop roots and sometimes extend over 
broad areas. The leaves are scale-like, acute, blue-green or steel-blue, 
and the fruits are bright blue and ripen at the end of the second 
season. This is a widely distributed plant from the coast of Maine to 
British Columbia, ranging south to Massachusetts, western New York, 
Illinois and Montana. It grows on sea cliffs, gravelly slopes, or in 
western New York in deep, often inundated swamps. For many 
years, until it was found to be distinct from the European Juniper, 
this plant was known as Juniperus Sabina var. procumbens. It has also 
been called J. prostrata and J. repens. There is a form of this Juni- 
per (var. Douglasii) with steel blue foliage, turning purple in the 
