WOOD EQUISETUM. 
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WOOD EQUISETUM [natural size.) 
Equisetum sylvaticum, Linneus. 
This plant, although local, is very widely distributed, occur- 
ring in moist shady woods throughout the kingdom. It grows 
in woods in the Hampstead and Highgate district : I am indebted 
to Mr. Pamplin for specimens gathered at the latter place, and 
