Mikhail S Romanov, Alexey V F Ch Bobrov, Peter S Iovlev, Maxim S Roslov, Nikita S Zdravchev, Alexey N Sorokin, Ekaterina S Romanova, Maxim V Kandidov
PREMISE: The representatives of the ANA-grade of angiosperms demonstrate a diverse pattern of morphological characters, but their apocarpous gynoecium (except in Nymphaeaceae), composed of at least partly ascidiate carpels, the four-nucleate and four-celled female gametophyte, and the diploid endosperm (except in Amborella) are inferred to be plesiomorphies. Since the structure of fruits in Austrobaileyales is under-investigated, this research aims to fill this gap in these data, describing the carpological characters of ANA-grade taxa, and potentially illuminating the ancestral fruit and seed types of angiosperms...
November 29, 2023: American Journal of Botany