Table 40.--Net volume of sawtimber trees on timberland by species, size class, and tree grade, Maryland, 1999 
  
                                                           (In millions of board feet) 
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                                         >15" Diameter at breast height                        All size classes                                 
         Species        ______________________________________________________________________________________________________________________ 
                                                                         All                                                    All       SE    
                          Grade 1  Grade 2  Grade 3  Grade 4  Grade 5  grades   Grade 1  Grade 2  Grade 3  Grade 4  Grade 5   grades            
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   White/red pine             7.5     40.9      2.7       .0       .0     51.1     10.7     61.8    103.3      1.3       .0    177.1     34.1  
   Loblolly pine            484.5     91.0     62.9       .0      8.5    646.9    958.9    267.0    393.7       .0     16.4  1,636.0     12.7  
   Virginia pine             17.1     13.1     75.8       .0      6.9    113.0     46.7     43.4    323.2       .0     10.0    423.3     18.5  
   Other yellow pines          .0       .0       .0       .0       .0       .0       .0      3.8      4.5       .0      1.7     10.0     58.4  
   Other softwoods           69.2       .0       .0       .0      1.2     70.4    113.6       .0       .0       .0      3.7    117.3     32.1  
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     Total softwoods        578.3    145.0    141.4       .0     16.6    881.4  1,130.0    376.0    824.7      1.3     31.8  2,363.7     10.0  
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   Red maple                233.3    263.1    235.0    293.1    222.3  1,246.8    233.3    353.9    593.1    404.8    261.3  1,846.3     13.7  
   Sugar maple                 .0      6.4     19.4       .0     86.3    112.1       .0      6.4     91.3      1.3     88.1    187.2     36.9  
   Hickory                   77.8    102.7     60.0     14.3     21.3    276.2     77.8    136.2    214.0     23.1     21.3    472.4     15.5  
   Beech                       .0     12.9     33.4    129.1     25.5    200.9       .0     12.9     45.4    209.6     34.9    302.8     18.4  
   Sweetgum                 351.5    198.1     81.1     14.8     32.5    677.9    351.5    380.2    401.5     55.4     35.8  1,224.5     13.2  
   Yellow-poplar          1,511.5    678.7    310.9     73.2    144.4  2,718.7  1,511.5    836.6    510.6    146.8    158.6  3,164.1     11.6  
   Blackgum                  55.5     44.7     32.8     20.7     33.3    186.9     55.5     78.7    106.2     26.1     40.0    306.4     19.7  
   Ash-walnut-cherry        143.4     44.4     58.4       .0    116.9    363.1    143.4     72.6    211.4      6.3    130.8    564.5     16.7  
   Select white oaks        432.7    369.4    137.6     47.4    192.5  1,179.6    432.7    494.6    439.1     95.4    197.7  1,659.5     11.0  
   Select red oaks          171.4    186.1     99.7       .0     32.8    490.1    171.4    237.9    234.5      8.7     35.3    687.7     17.7  
   Other white oaks          37.8    104.7     90.2     21.3     47.1    301.1     37.8    151.4    267.8     29.2     55.2    541.5     20.2  
   Other red oaks           722.7    441.9    303.4    115.8      7.0  1,590.8    722.7    598.4    596.4    208.5      9.8  2,135.9     10.4  
   Black locust                .0      9.4     30.9       .0     14.5     54.8       .0     26.6     44.2      3.4     42.1    116.2     38.0  
   Other hardwoods           87.0    134.0    113.2     60.8      5.3    400.3     87.0    163.8    236.4     78.1     23.6    588.8     18.0  
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     Total hardwoods      3,824.5  2,596.3  1,606.2    790.4    981.6  9,799.1  3,824.5  3,550.3  3,991.7  1,296.8  1,134.5 13,797.8      4.8  
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   All species            4,402.8  2,741.3  1,747.7    790.4    998.2 10,680.4  4,954.5  3,926.2  4,816.4  1,298.1  1,166.2 16,161.5      4.2  
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   SE                         9.1      7.9      9.3     14.6     12.5      5.6      8.5      6.3      4.8     10.2     11.1      4.2 
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