Verbatim text: Shaffer-Fehre, M. 1991b. The position of Najas within the subclass Alismatidae (Monocotyledones) in the light of new evidence from seed coat structures in the Hydrocharitoideae (Hydrocharitales). Bot. J. Linn. Soc. 107: 189--209.
Author: Shaffer-Fehre, M.
Year: 1991b
Title: The position of Najas within the subclass Alismatidae (Monocotyledones) in the light of new evidence from seed coat structures in the Hydrocharitoideae (Hydrocharitales)
Journal: Bot. J. Linn. Soc
Volume: 107
Pages: 189–209