Funding for this research was provided by:
Russian Science Foundation (14-50-00150, 17-14-01315)
Text and Data Mining valid from 2018-08-09
Received: 10 January 2018
Accepted: 30 July 2018
First Online: 9 August 2018
: E. aphyllum is a protected species in Russia; it was collected under permission from Kandalaksha State Reserve (agreement #2011_31). E. roseum was collected during the expedition approved by the Joint Russian–Vietnamese Tropical Scientific and Technological Center. H. monotropa is not rare and/or endangered plant in the area of its collection thus no permission is required.
: Not applicable.
: The authors declare that they have no competing interests.
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