TABLE 1. — Forest tree seed crops in the Lake States, 1962 
Estimated percentage of a full crop! in — 
Species Northern Northeastern renal Power North-central 
: : ; pper Peninsula 
Minnesota Wisconsin Michigan Michigan North Dakota 
Red pine 7 a 50 7 2 
Eastern white pine 25 25 50 i - 
Jack pine 50 50 -- 50 - 
Ponderosa pine - -- -- -- 75 
White spruce 75 50 50 25 -- 
Black spruce 75 50 75 25 - 
Balsam fir 75 1 75 25 - 
Eastern hemlock - 75 7 50 -- 
Northern white-cedar 95 75 50 75 - 
Tamarack 50 -- -- 25 -- 
Sugar maple 50 50 7 a -- 
Red maple -- 75 75 25 -- 
Boxelder - - - -- 50 
American beech - - 75 if - 
Basswood 75 75 50 25 -- 
Yellow birch 25 75 it -- -- 
Paper birch 75 75 -- 25 -- 
Eastern hophornbeam -- - -- 25 -- 
Quaking aspen 95 75 -- 75 -- 
Bigtooth aspen 15 50 - MD -- 
Balsam poplar 75 ae = Re Z 
American elm - 75 143) 425-395 50 
Siberian elm -- -- -- -- 25 
Hackberry -- a = oe 7 
White ash - 7 = 7 = 
Green ash - oe - & 25 
Black ash - VE vi a a 
Bur oak 7 -- -- -- 7 
White oak - = = 350--475 “ 
Black oak - = = 495-375 Z 
Northern pin oak A -- be 25 = 
Northern red oak 50 50 75 450-875 - 
Shagbark hickory -- - -- 75 -- 
Black walnut ~ = =a 75 = 
Butternut = zs = 75 ed 
Black cherry - = fs 50 BE 
Chokecherry -- = ee = 75 
American plum -- es “ = 50 
Russian-olive - = = = 75 
Caragana - = a Be 50 
' Percentage of a full crop classified as 0-15, fail- 2 A dash (--) signifies no report on this species. 
ure; 16-35, poor; 36-60, fair; 61-90, good; and 3 Southern half of Lower Peninsula. 
91-100, bumper. 4 Northern half of Lower Peninsula. 
