From: (Andreas Carlson) Date: Fri, 6 Oct 2017 16:42:22 +0000 Subject: [Mastwatch] Help with characterisation of wing morphology of "helicopter" seeds/ Status: O Dear all, We are looking for images and/or data of the wing shape/morphology of helicopter seeds/fruits near the time they are released from the tree. We would be very thankful for any help with images, references or where we could access this type of information. In addition, we are looking for data about the rotational frequency of this class of seeds if anyone knows if this data can be accessed. Some types we are looking for, but not limited to; Astronium graveolens (Anacardiaceae) Cordia alliodora (Boraginaceae) Triplaris cumingiana (Polygonaceae) Dipterocarpus grandiflorus Dryobalanops lanceolata Hopea ferruginea Hopea nervosa Hopea sp. Parashorea malaanonan Parashorea tomentella Shorea argentifolia Shorea beccariana Shorea johorensis Shorea leprosula Shorea macrophylla Shorea mexistopteryx Shorea parvifolia Shorea seminis Shorea smithiana Dipterocarpus humeratus Dipterocarpus kerrii Hopea beccariana Shorea acuminatissima Shorea falciferoides Shorea gibbosa Shorea macroptera Shorea xanthophylla Yours sincerely, Andreas. ????????????? Andreas Carlson Associate Professor Department of Mathematics University of Oslo E-mail: < Phone: (+47) 228-57223 Web: folk.uio.no/acarlson Skype: carlsona -------------- next part -------------- An HTML attachment was scrubbed... URL: