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Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (/ ˌ æ n dʒ i ə ˈ s p ər m iː /). [ 5 ] [ 6 ] The term 'angiosperm' is derived from the Greek words ἀγγεῖον / angeion ('container, vessel') and σπέρμα / sperma ('seed'), meaning that the seeds are enclosed within a fruit.
Flower of Liriodendron tulipifera, a Mesangiosperm. Mesangiospermae is a clade that contains the majority of flowering plants (angiosperms). Mesangiosperms are therefore known as the core angiosperms, in contrast to the three orders of earlier-diverging species known as the basal angiosperms: Nymphaeales (including water lilies), Austrobaileyales (including star anise), and Amborellales.
The fossil history of flowering plants records the development of flowers and other distinctive structures of the angiosperms, now the dominant group of plants on land.The history is controversial as flowering plants appear in great diversity in the Cretaceous, with scanty and debatable records before that, creating a puzzle for evolutionary biologists that Charles Darwin named an "abominable ...
In a mature flower, the perianth consists of a calyx (sepals) and the corolla it supports. A sepal (/ ˈ s ɛ p əl, ˈ s iː p əl /) [1] [2] [3] is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom. [4]
Chloranthaceae (/ k l ɔːr æ n ˈ θ eɪ s iː. i / klor-ann-THAY-see-ee) [3] is a family of flowering plants (angiosperms), the only family in the order Chloranthales. [2] It is not closely related to any other family of flowering plants, and is among the early-diverging lineages in the angiosperms.
Conifer leaves are typically needle- or awl-shaped or scale-like; they are usually evergreen but can sometimes be deciduous. Usually, they have a single vein. The standard form of flowering plants (angiosperm) includes stipules, a petiole, and a lamina. Lycophytes have microphylls. Sheath leaves are the type found in most grasses and many other ...
Asterales belong to angiosperms or flowering plants, a clade that appeared about 140 million years ago. [ citation needed ] The Asterales order probably originated in the Cretaceous (145 – 66 Mya ) on the supercontinent Gondwana which broke up from 184 – 80 Mya, forming the area that is now Australia, South America, Africa, India and ...
Dicotyledon plantlet Young castor oil plant showing its prominent two embryonic leaves (), which differ from the adult leaves. The dicotyledons, also known as dicots (or, more rarely, dicotyls), [2] are one of the two groups into which all the flowering plants (angiosperms) were formerly divided.