(i55) 



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 range I. 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 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, from northeastern 

 North America, is fully represented, not only by the 

 typical form, but by many horticultural varieties, some of 

 them very decorative; the wood of this tree is valued for 

 fence posts, railway ties, etc., and from its young branches 

 fluid extracts and tinctures are made which are used in 

 medicine. The Chinese arbor vitae, from China and 

 Japan, has a number of specimens representing it and some 

 of its horticultural forms; this as a decorative plant in this 

 vicinity is not satisfactory, as it is not quite hardy, the 

 branches often killing back in the winter and the foliage 

 burning badly. 



The maiden-hair tree family (Ginkgoaceae) is represented 

 by a single species, the maiden-hair tree, several specimens 



