23 



twigs. Scales reddish brown, lower ones with long points 

 at the tip, upper ones with thin margins; general shape 

 ovate. Bark of older branches commonly blackish, giving a 

 generally dark appearance to the tree, which gi-ows especially 

 in peat bogs from the far north sovithward to Michigan and 

 ISTew Jersey- Cone 9 inches to 1^/4 feet long, oval in outline, 

 each scale having along the outer margin numerous irregu- 

 lar teeth; remaining on the twigs for several seasons. 



The ^lack spruce grows abundantly in the so-called spruce 

 bogs of the northern States. It is not a very good tree for 

 ornamental purposes, as even in its favorite localities it is 

 commonly unsymmetrical. It is often brought into the mar- 

 ket as a Christmas tree. 



American Larch (Lurix laricina). — In early winter the 

 twigs are commonly bare, having dropped the leaves late in 

 autumn. Bark of season's shoots light reddish brown, with 

 more or less of a glaucous bloom. Buds on these shoots 

 globose, dark reddish brown, shining, the imbricated scales 

 having thin margins. On older twigs the bark is darker, 

 commonly being slaty gray in color, and the buds are on the 

 tips of very short branches. 



The American larch or tamarack is one of the most abun- 

 dant cone-bearing trees to be found in the swamps of the 

 northern States. It is a distinctive tree that seems to require 

 an abundance of moisture. In the summer its numerous fine 

 leaves give it an attractive appearance, which is largely lost 

 when the leaves drop off late in autumn. 



Third Year List. 



Common Juniper (JunijJerus communis)- — Distinguished 

 from the low juniper by its tree-like form, with slender and 

 rather straight leaves. It is a northern species, which extends 

 southward to Michigan and ISTew Jersey. By many botanists 

 it is considered the same as the low juniper. 



White Cedar {ChanKEcyparis thyoides). — Bark of smaller 

 twigs reddish brown, somewhat shining, with the ends more 

 or less greenish. Leaf buds rather small, without scales. 

 Leaves minute, scale-like, opposite and four ranked, covering 

 the twig; tips sharj^ly pointed. Most of the leaves have a 



