32 



mental plantyig. It proves hardy in the southern part of the state. 

 It is a fast growing tree, adapted to a wet soil, but will succeed in drier 

 situations. 



5. THUJA. ARBOR-VITAE. 



Thuja occidentalis Linnaeus. ARBOR-VITAE. Plate 8. Small 

 evergreen trees with a conical crown, bark on old trees reddish-brown 

 or dark gray, shreddy; branchlets compressed, reddish-brown; leaves 

 all closely appressed, in alternate pairs, scale-like, about"3 mm. long on 

 young branchlets, on old branches some\vhat longer together with a 

 spine 2-3 mm. long; flowers appear early in the spring from the ends of 

 the branches; cones mature the first season, about 1 cm. long and .5 

 cm. in diameter; wood soft, brittle, weak and durable. 



Distribution. New Brunswick to Manitoba, south to Minnesota 

 and New Jersey thence southward along the Alleghanies to North 

 Carolina and Tennessee. In Indiana it is found native 1 only in Lake and 

 Porter Counties. In Lake County a few isolated specimens have been 

 found in several places near Lake Michigan. In Porter County it is 

 known only in a large tamarack swamp north of the Mineral Springs 

 stop on the Traction line, and about a mile from Lake Michigan. 

 Here about 100 trees are found scattered over an area of less than two 

 acres. The largest specimen measures 70 cm. in circumference. This 

 species is doomed to early extinction in our area. No doubt it already 

 has vanished from Lake County, and it is probable that the colony 

 north of Mineral Springs is the last of the species in Indiana. 



Remarks. While only found in a swamp in Indiana, this species 

 adapts itself to all kinds of soils and exposures. It transplants readily 

 and is used for ornamental purposes, and for windbreaks. Dwarf forms 

 are frequently planted for hedges. The wood is used principally for 

 poles and posts, and is commercially known as white cedar. 



6. JUNIPERUS. THE JUNIPERS. 



Evergreen shrubs or trees, leaves opposite or whorled, sessile, scale- 

 like or short-linear; fruit berry-like; seeds 1-3. 



Juniperus virginiana Linnaeus. RED CEDAR. Plate 9. A 

 small tree, usually 1-2 dm. and rarely up to 5 dm. in diameter; bark 

 shreddy; branches usually more or less ascending which gives the tree 

 a narrow conic appearance; shoots green, soon turning light to reddish- 

 brown and on older branches gray or dark brown; leaves 4-ranked, scale- 

 like and 1.5-2 mm. long, or subulate, decurrent at base and 3-10 mm. 

 long on vigorous branches or very small trees; flowers terminal; fruit 



iHamilton County by Wilson, no doubt from a cultivated tree. 



