Anna Ponikierska, Wanda Gugnacka-Fiedor, Marcin Piwczyński
Morphological characteristics of Vaccinium ×intermedium RutheDendrobiology 2004, vol. 51: 59-65 Full text (pdf)
Abstract: Vaccinium ×intermedium Ruthe, the hybrid of V. myrtillus and V. vitis-idaea, by contrast with the parental species is very rare plant and has a discontinuous geographical range in north-western Europe. This paper describes the morphology of V. ×intermedium from Polish populations occurring in part of Pomeranian Lakeland in comparison with both parent species. The results presented here confirm the suggestions of earlier research that V. ×intermedium displays intermediate characteristics of leaf and floral morphology concordant with hybrid status. Also, is discussed the problem of the isolating mechanisms between parent species and hybrid's ecology.
Additional key words: hybrid bilberry, hybridisation, morphology of leaves and flowers, taxonomical status, Poland