1910} HOWE—REFORESTATION OF SAND PLAINS 143 
at a distance from the seed trees are eventually covered with unevén- 
aged stands, as described for old fields in the preceding section. 
Sample plot no. 25 (jig. 8) shows the character of a pasture in the: 
first stages of possession by pitch pine. 
8 | [ [8 
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8 
Fic. 11.—Sample plot 2. White birch 6 years old, pasture, Colchester plain, 
5 meters square; a carpet of Polytrichum commune beneath; B, Betula populijolia 
105; S, Spiraea tomentosa 64; O, Osmunda cinnamomea 8; M, Myrica asplenifolia 4; 
ON, Onoclea sensibilis 2; MU, Monotropa uniflora 2; R, Rubus allegheniensis 1; 
PS, Pinus Strobus i: 
Ten stands 5 to 15 years old averaged 34 trees on 25°*™, while ten 
Stands 25 to 30 years old averaged 7 trees. The older stands of pitch 
pine show regeneration of white pine beneath them, and ‘plots like no. 
10 (jig. 7) may be commonly found in the old pastures as well as in 
the abandoned fields. In one case white pine seedlings and saplings 
