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Longitudinal section of a male cone of Pinus
	- Large (275 Kb) - Scroll down to information With labels Legend: 1 microsporophyll 2 microsporangium containing pollen grains
English name: Pine Scientific name: Pinus sp. Familia: Pinaceae Classis: Coniferopsida Phylum: Gymnospermae Regnum: Plantae
In the microsporangium microsporocytes undergo meiosis, giving rise to microspore that divide mitotically and form pollen grains

last modified: 5 Jun 2014