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Meeusella and the origin of stamens
Authors:V. A. KRASSILOV  E. V. BUGDAEVA
Affiliation:Institute of Biology and Pedology of the USSR Academy of Science, Vladivostok 22 USSR;3rd August, 1987
Abstract:Meeusella gen. nov. is a strobilate pollen organ from the Lower Cretaceous of Transbaikalie (east of the Lake Baikal); the branched lateral branches (paracladia), if fully developed, bear a subterminal pair of stalked synangial heads. In some cases the latter are reduced to a pair of sessile heads or the paracladia are sterile. It is suggested that the synangial heads might be further reduced to a pair of bisporangiate thecae, while the paracladium apex between them might form a prominent connective of a typical stamen. ▭ Androecium, androclade, angiosperms, proangiesperms, stamen, evolutionary morphology.
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