%A Deroin, Thierry
%A Norman, Éliane M.
%D 2016
%T  Notes on the floral anatomy of Deeringothamnus Small (Annonaceae): cortical vascular systems in a chaotic pattern
%K 
%X  Floral anatomy of  Deeringothamnus  Small, an endemic and endangered annonaceous genus from Florida comprising 2 species, was studied. It is mainly distinguished by missing any sclerenchyma at anthesis – apart from anthers – and by a chaotic vasculature exhibiting a partial perianth-stamen cortical vascular system, appearing as an over-evolution of the pattern previously described in the neighbouring  Asimina  and other paracarpous and pseudosyncarpous genera. Such a pattern is amazingly similar to that previously recognized in the most basal annonaceaous genera, as e.g.  Ambavia , and might be considered as a reversion to an ancestral state. These alterations toward decrease are related to the receptacle flatness and lack of pollination chamber, and seem parallel with the dwarf habit of this genus. 
%U http://ojs.phytomorphology.org/index.php/MP/article/view/25
%J Modern Phytomorphology
%0 Journal Article
%R 10.5281/zenodo.159689
%P 3-12%V 9
%@ 2227-9555
%8 2016-06-01