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Contrastedpollen capture mechanisms in Phyllocladacae and certain Podocarpaceae (coniferales). Tomlinson P B,Braggins J E,Rattenbury J A. American Journal of Botany . 1997
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Functional morphology of saccate pollen in conifers with special references to Podocarpaceae. Tomlinson P B. International Journal of Plant Sciences . 1994
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Ovulate cone, pollination for, andpollen capture in Sequoiadendron (Taxodiaceae). Takaso T,Owens J N. American Journal of Botany . 1996
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Pollen scavenging and raom involvement in the pollination mechanism of interior spruce. Runions C J,Owens J N. Canadian Journal of Botany . 1996
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The pollination mechanism of Engelmann spruce (Picea engelmannii). Owens J N,Simpson S J,Garon G E. Canadian Journal of Botany . 1987