There are between 6 and 16 microsporophylls present with each containing with 3 or 4 pollen sacs.
12.
A pollen cone consists of numerous spirally arranged microsporophylls around a 10-25 millimeter long rachis.
13.
If the plant is heterosporous, the sporangia-bearing leaves are distinguished as either microsporophylls or megasporophylls.
14.
Conifers, like " Ginkgo " and cycads, produce microsporophylls, aggregated into pollen strobili.
15.
The Androecium ( literally, men's house ) is a collective term for the male organs ( stamens or microsporophylls ).
16.
Microspores, which will divide to become pollen grains, are the " male " cells and are borne in the stamens ( or microsporophylls ).
17.
Conifers typically bear their microsporangia on microsporophylls aggregated into papery pollen strobili, and the ovules, are located on modified stem axes forming compound ovuliferous cone scales.
18.
Leaves are 3-10 per plant, up to 42 mm long, elliptical in cross-section . microsporophylls may be found on the same plant.
19.
However, fastidious studies in 2009 highlight ciliate lateral leaf margins on several specimens and bifid microsporophyll apices during the emergence of reproductive parts, which differentiate a new taxon.
