LEPTORCHIS 129 



the dotted and mottled marking of the Hp is a distinctive 

 feature of this species. 



It has a more northern habitat than the preceding Tway- 

 blade. It loves wet vs^oodlands or banks where springs 

 abound and thus deserves its name Fen Twayblade. It 

 grows in Nova Scotia and across the continent to the North- 

 west Territory. Its furthest southern limit is Maryland and 

 Missouri. It blooms from May to July. 



