138 BOTANICAL GAZETTE [FEBRUARY 
jolia, 8 Aster linariifolius, 6 Danthonia spicata, 2 Ambrosia artemi- 
stifolia, 1 Viola arenaria, 1 group of Andropogon scoparius. 
When the abandoned field happens to be near a mature stand of 
pitch pine, the reforestation is much more rapid. For example, an 
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Fic. 6.—Sample plot 11. Pitch pine 25 years old in an old field, Colchester plain, 
5 meters square; PR, Pinus rigida 12; QV, Q. velutina 7; QA, Q. alba 2; S, Spiraea 
tomentosa 12; A, Acer rubrum 2; B, Betula populifolia 1; M, Myrica — 93 
PS, Pinus Strobus. 
old field on the Colchester plain has at 270™ from the seed trees 
I pitch pine and 6.3 white birch saplings on 2581"; at 170™ from the 
mother stand 3 pitch pine and 1.3 white birch; at 75™, 7 pitch pine 
and no white birch on 25°1™. In the second case the forest covet is 
complete and in the third case the stand is dense. At the greatest 
distance from the seed trees, the area between the birch and pine is 
