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. 2005 Sep 12;96(6):1047–1060. doi: 10.1093/aob/mci256

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© The Author 2005. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

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Fig. 2. — Equatorial views of Marcgraviaceae pollen grains (SEM) showing an oblate spheroidal to prolate spheroidal shape, and a psilate to reticulate sexine pattern on the mesocolpium. (A, C–F) treated with acetolysis; (B) critical point dried. (A) Souroubea sympetala (Gentle 9254), prolate spheroidal shape, psilate mesocolpium. (B) Schwartzia adamantium (Irwin et al. 9718), oblate spheroidal shape, perforate mesocolpium. (C) Ruyschia tremadena (Diederichs 13), detail of psilate mesocolpium. (D) Marcgravia sintenisii (Webster and Miller 8710), detail of fossulate mesocolpium. (E) Marcgraviastrum cuneifolium (Glaziou 2937), prolate spheroidal shape, microreticulate mesocolpium. (F) Marcgravia coriacea (Veth and Manou 241), suboblate spheroidal shape, reticulate heterobrochate mesocolpium, granules on foot layer.