The structure of a flower can also be expressed by the means of floral diagrams. The use of schematic diagrams can replace long descriptions or complicated drawings as a tool for understanding both floral structure and evolution. Such diagrams may show important features of flowers, including the relative positions of the various organs, including the presence of fusion and symmetry, as well as structural details.

The principal purpose of a flower is the reproduction of the individual and the species. All flowering plants are heterosporous, producing two types of spores. Microspores are produced by meiosis inside anthers while megaspores are produced inside ovules, inside an ovary. In fact, anthers typically consist of four microsporangia and an ovule is an integumented megasporangium. Both types of spores develop into gametophytes inside sporangia. As with all heterosporous plants, the gametophytes also develop inside the spores (are endosporic).

  • Priimula noortaimede ettetellimine 2019a sügiseks!

    Käimas on priimula noortaimede ettetellimine! Sortimendist leiate nii suureõielise priimula sordiseeria Herkules kui ka lainelise äärega sordiseeria Sacarina. Sortiment on...

  • Võõrasema seemned 2019/2020

    Alanud on võõrasema seemnete ettetellimine 2019a külviks. Lisaks Eesti turul populaarsetele sortidele pakume ka järgmist: amplisse sobivad sordiseeriad nagu Cool...

  • Tulpide jt. kevadiste sibullillede ettetellimine!

    Käimas on tulbi, nartsissi, hüatsindi jt. kevadel õitsevate lillesibulate ettetellimine. Sibullillede ajatamiseks pakume spetsiaalselt prepareeritud sibulaid. Vajadusel aitame sortimendi valikul...

  • Volmary noortaimede jäägileht nädalaks 30 ja 37

    Nädalaks 30 saame taimi lisada kuni 10.07.2019 Dümmen Orange suvelille noortaimede tellimine käesolevaks hooajaks on lõppenud. Volmary noortaimede saadavust saab...

Priimula noortaimede ettetellimine 2019a sügiseks!

Vaata pakkumist

Võõrasema seemned 2019/2020

Vaata pakkumist

Tulpide jt. kevadiste sibullillede ettetellimine!

Vaata pakkumist

Volmary noortaimede jäägileht nädalaks 30 ja 37

Vaata pakkumist