T. Holm — Triadenum Yirginicum (Z.) Rafin. 371 



rhizome of more or less tuberous stolons with scale-like leaves, 

 which, to our knowledge, is not met with among the species of 



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Hypericum proper. If, for instance, we examine the perennial 

 Hypericum maculatum during the winter, we observe the 

 presence of numerous green shoots above ground at the base 

 of the withered flowering stem, and these shoots are also 



