<Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (June 2009) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (June 2009) (Learn how and when to remove this template message) </Td> </Tr> <P> A cone (in formal botanical usage: strobilus, plural strobili) is an organ on plants in the division Pinophyta (conifers) that contains the reproductive structures . The familiar woody cone is the female cone, which produces seeds . The male cones, which produce pollen, are usually herbaceous and much less conspicuous even at full maturity . The name "cone" derives from the fact that the shape in some species resembles a geometric cone . The individual plates of a cone are known as scales . </P> <P> The male cone (microstrobilus or pollen cone) is structurally similar across all conifers, differing only in small ways (mostly in scale arrangement) from species to species . Extending out from a central axis are microsporophylls (modified leaves). Under each microsporophyll is one or several microsporangia (pollen sacs). </P>

Where are pollen grains produced in a pine trees