microsporophyll


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to microsporophyll: microsporangium, microsporangia

microsporophyll

the structure bearing the microsporangia - a leaf or modified leaf, and in flowering plants, the STAMEN.
References in periodicals archive ?
4 cm, yellow-beige tomentose with green undertones; microsporophylls arranged in 14-16 orthostichies of 16-25 fertile sporophylls each, obtrullate, 10-11 x 89 mm at pollen shedding, bullae encompassing 1/4 to 1/3 of total length of sporophyll, beige-yellow tomentose, face hexagonal, 5-5.
muricata has subterranean stems, dark brown to black ovulate strobili with long peduncles (16-28 cm long), and grey pollen strobili with microsporophylls bearing 12-16 microsporangia segregated into two separate groups along margins.
In other forms the terminal telomes may have undergone the same processes as in the carpel, and a broad expanded microsporophyll resulted, as in the Magnoliaceae (Can, right, 1952).
For example, Canright (1952) states that he regards the broad expanded types of microsporophylls found in certain Ranalian families as relatively unmodified fertile phyllomes--that is, presumably, fertile leaves or leaf-like organs.
Microsporophyll lamina firm, not dorsiventrally thickened, 43-60
The microsporophylls within this compact structure are peltate or apically thickened, a distinctive feature of the Taxaceae and the Cephalotaxaceae but also present in the Araucariaceae.