Whither Polyalthia (Annonaceae) in Peninsular Malaysia? Synopses of Huberantha, Maasia, Monoon and Polyalthia s. s. Author Turner, Ian M. Author Utteridge, Timothy M. A. text European Journal of Taxonomy 2016 2016-03-22 183 1 26 journal article 22045 10.5852/ejt.2016.183 29033971-cc71-44ce-9a46-9ab104d684ea 2118-9773 3833125 Key to genera 1. Lower surface of leaves densely covered with minute papillae giving a white or glaucous appearance .............................................................................................................................................. Maasia – Leaves not white or glaucous below .................................................................................................. 2 2. Leaf venation herringbone (eucamptodromous) with insertion of lateral veins to the midrib decurrent; intercostal venation scalariform to subscalariform ............................................................. Monoon – Leaf venation looping (brochidodromous) with insertion of the lateral veins to the midrib not decurrent; intercostal venation reticulate ........................................................................................... 3 3. Leaf base generally more or less symmetrical, not (sub)cordate. Ovules 1 per carpel. Seeds 1 per monocarp ...................................................................................................................... Huberantha – Leaf base generally more or less asymmetrical, often (sub)cordate. Ovules usually 2–6 per carpel. Seeds usually 2 or more per monocarp ............................................................................ Polyalthia