Proccedino-s of the Ohio State Academy of Science 121 



Taxodiaceae. Bald-cypress Family. 



7. Taxodium Rich. Bald-cypress. 



Tall trees with horizontal or drooping branches, ours with 

 feather-like, annually self-pruned, dwarf branches. Carpellate 

 cones, globose. 



I. Taxodium distichum (L.) Rich. Bald-cypress. A 

 large tree, the old bark flaky in thin strips. The roots develop 

 upright conic "knees." Wood light, soft and durable. In 

 swamps and along rivers. Del. to Fla., west to Tex., north to 

 Mo. and Ind. 



Jimiperaceae. Juniper Family. 



8. Thuja L. Ari3orvitae. 



Evergreen trees or shrubs with flattened fan-like twigs. Car- 

 pellate cones ovoid or oblong with dry coriaceous scales, not pel- 

 tate. 



I. Thuja occidentalis L. Arborvitae. Usually a small 

 conical tree with fan-like branches. Self-prunes twigs. Wood 

 light and durable ; used for posts, railroad ties, etc. Usually in 

 wet soil and along the banks of streams. N. B. to Man., south to 

 Ohio and N. J., along the Alleghanies to N. C, and to 111. and 

 Minn. 



9. Chamaecyparis Spach. White-cedar. 



Evergreen trees, similar to the Thujas. Carpellate cones 

 globose, with thick, peltate scales. 



I. Chamaecyparis thyoides (L.) B. S. P. White-cedar. 

 A tree with soft, light, and durable wood ; used for boat-build- 

 ing, woodenware, shingles, etc. In swamps. N. H. to N. J., 

 Fla., and Miss. 



10. Juniperus L. Juniper. 



Evergreen trees or shrubs with small globose, berry-like 

 bluish or blackish cones. 



1. Leaves all subulate, prickly pointed, verticillate, slender, mostly 



straight; cones axillary. /. communis. 

 1. Leave? of 2 kinds, scale-like and subulate, opposite or v;rticilate; 



cones terminal. /. virginiana. 



