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the immediate vicinity are located the retinisporas, which 
are so commonly cultivated as decorative plants. There 
are many horticultural forms here represented, but they 
are all variations of two Japanese trees: the Sawara cypress 
(Chamaecyparis pisifera); and the Hinoki cypress (Cham- 
aecyparis obtusa). The latter species is frequently used by 
the Japanese in their dwarfing process. The names borne 
by the various horticultural forms have been suggested by 
some peculiarity in coloring or in manner of growth. 
North American species of the genus Chamaecyparis will 
be found in the low ground along the south walk, not far 
from the south gate. 
On the easterly corner of the conservatory terrace, oppo- 
site the retinisporas, is a part of the juniper, or red cedar 
(Juniperus), collection. The remaining and larger portion 
of this collection will be found on the easterly end of the 
area lying between the driveway and the traffic-road south 
of the conservatories. In these two areas will be found 
many species and varieties of these plants. The common 
juniper, of north temperate regions, is one of these; also 
the Irish juniper, a form of this, of compact and strict habit. 
The red cedar, so common in a wild state in the grounds of 
the Garden, finds representatives in many horticultural 
forms. The savin juniper, of Europe and northern Asia, 
and its American representative, the prostrate or Waukegan 
juniper, of northern North America, are both neat low- 
growing sorts. The Chinese juniper, and its striking form, 
of columnar habit, known as variety pyramidalis, are each 
present in a number of specimens. There are still other 
varities of the Chinese juniper represented here, including 
Pfitzeriana, one of the best dwarf conifers. 
At the westerly end of this area is the arbor vitae group 
(Thuja). The species of this genus produce a durable wood 
which is of especial value where there is contact with the 
soil. The Japanese arbor-vitae is represented by several 
specimens. The common arbor-vitae, or white cedar, 
from northeastern North America, is fully represented, not 
