62 



FORESTRY INVESTIGATIONS U. 8. DEPARTMENT OF AGRICULTURE. 



List of one hundred specie* of trees of the United States most raluable for timber, with notes on thi'ir range of distribution, 

 cultural requirements, and the character and uses of their wood Continued. 



Name of species and limit of size. 



82. RED MAPLE. 



(Son' MAPLE. WATEII MAPLE. 

 SWAMP MAPLE.) 



(Acer rubruin Linn.) 



Height, 90 feet + ; diameter, 



3 feet +. 



83. OREGON MAPLE 



(CALIFORNIA MAPLE. BROAI>- 



LEAFED M \l-l.l i 



(Acer macrophyllum Pursh.) 



Height, 90 feet + ; diameter, 



4 feet + . 



84. BOX ELDER 



( Asn LEAVED MAPLE.) 

 (Acer negundo Liun.) 



Height, 50 foot + ; diameter, 

 2 feel + . 



85. WHITE EI,IW 



(AMERICAN ELM. WATER KLM.) 

 (Ulinuti americana Linn.) 



Height, 100 tent + i diameter, 



34+. 



Regions of abundant growth. 



86. OKI.. El. M. 



(HICKORY ELM. WHITE ELM. 

 CLIFF KLM.) 



( Ulnius racemosa Thomas.) 



Height, 90 feet -)- ; diameter, 

 2 ieet +. 



87. WING ELM 



(Vlmus alata Miclix.) 



Height, 80 fret + ; diameter, 

 2feet + . 



88. SLIPPERY ELM 



(RED ELM. MOOSK ELM.) 

 ( Vlmitt imbi-tcene Thomas.) 



Height, 60 feet -(- ; diameter, 



2 feet + . 



89. YELLOW BIRCH 



(GRAY BIRCH.) 

 (Hetula lutea, Michx. f.) 



Height, 80 feet + ; diameter, 



3 feet +. 



90. SWEET BIRCH.. 



(CHERRY BIRCH. 

 BIRCH.) 



(Itetvla lenta Linn.) 



MAHOtjANY 



Height, 60 feet I ; diameter, 

 3 feet + . 



91. KIVER BIRCH 



(Betula nitjra Linn.) 



Height, 80 feet + ; diameter, 

 3 feet. 



92. CAKOK l!Il;cll. 



Soil and climate, and characteristics of growth. 



Eastern United States and north- Best on low. wet soils, but will thrive in moderately dry 

 wardi wide range. situations. 



Greatest development in valleys of Rapid, but moderately persistent grower; endures more shade 

 lower Wabash and Yazoo rivers. than A. eaccharimtni L. ; sprouts vigorously from the stump. 



Usefulness in dry climates questionable. 



Pacific slope 



Best development on rich bottom 

 lauds of southern Oregon. 



East of Rocky Mountains, rather 

 Southern and Western. 



Best development in valleye of 

 Wabash and Cumberland rivers. 



Rich bottom lauds. 



Rapid grower in moist climate. 



Important on the Pacific slope. 



East of tho llocky Mountains 



Probably attains ita best develop- 

 ments near its northern limits. 



Northeastern United States 



Best development in southern On- 

 tario and Michigan. 



Southeastern United States 



Best development west of the 

 Mississippi River. 



Northern Atlantic and Gulf States. 



Best development in Western 

 States. 



Northeastern United States and 

 northward. 



Best development north of the 

 Great Lakes. 



Same range as Yellow Birch. 



(WHITE BIRCH. PAI-F.K I'.iucn.) 

 (Httula papyri/era Marshall.) 



Height, 60 (cut + ; diameter, 

 2 feet +. 



Eastern States 



Best development in the Smith 

 Atlantic and Lower Mississippi 

 Valley regions. 



Northwestern, Northern, and 

 Northeastern in United States. 



Reaches a higher latitude than any 

 other American deciduous tree. 



Best on low, rich ground, but will succeed on upland. 



Rapid hut not persistent grower; sprouts well from the stump; 

 hardy. Easily }-<>j>a<tati'tl. 



(I soil cover, 



For forestry purposes, imported only as nurse an 

 especially in Western planting. 



Adapted to a great variety of soils, but best on a rich, loose, 

 moist one; requires less moisture than the ashes; boars 

 occasional Hooding. 



Rapid and persistent grower; sprouts well; etiilurco moderate 

 shade. 



Important in forestry mainly as a nurse and for soil cover. 



Recommended for Western planting. 



Rich, moist, heavy, loamy soils. 



Probably to take the place of the White Elm in forestry. 



Most commonly on dry, gravelly uplands, but frequently in 

 moist bottoms and along -water courses. Very adaptive,' and 

 to be used in Southwestern planting in place of the White 

 Elm. 



Rich, moist, well-drained soil; much like that of the White 

 Elm, but will bear drier and more elevated situations. 



Rapid but not persistent grower. Easily propagated. 



Cool, moist atmosphere preferable. Capable of thriving on poor, 

 but best on a moderately drop, loose, moist sand: hardy and 

 very adaptive as to soils. 



Rapid and tolerably persistent grower; sprouting qualities 

 greatly dependent on site. Vigorously in moist soils. Light 

 needing. Easily propagated. 



Same as above species, but apparently not as rapid nor as per 

 sistent a grower. 



Almost exclusively on moist or inundated bottoms, along 

 streams, and noar ponds. Succeeds very well on moist, rich, 

 pm-oiis. upland soils. Important aa a substitute for Northern 

 birches in .Southwestern planting. 



Mostly on sandy soils in northern climates. 

 Not on clay lands whore the Yellow Birch thrive 



