Search results
Results from the WOW.Com Content Network
The accompanying page—Plant morphology—provides an overview of the science of the external form of plants. There is also an alphabetical list: Glossary of botanical terms. In contrast, this page deals with botanical terms in a systematic manner, with some illustrations, and organized by plant anatomy and function in plant physiology. [1]
The term was first proposed by Augustin Pyramus de Candolle in 1827 and was constructed by analogy with the terms "petal" and "sepal". [ 1 ] [ 2 ] (De Candolle used the term perigonium or perigone for the tepals collectively; today, this term is used as a synonym for perianth .) [ 3 ]
[1] abaxial Surface of an organ facing away from the organ's axis, e.g. the lower surface of a lateral organ such as a leaf or petal. [2] Contrast adaxial. abort To abandon development of a structure or organ. [3] abscission Natural shedding of an organ that is mature or aged, as of a ripe fruit or an old leaf. [4] abscission zone
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.
The leaves are green, hairless, oval and opposite, 6 to 25 mm (1 ⁄ 4 to 1 in) long by 3 to 10 mm (1 ⁄ 8 to 3 ⁄ 8 in) wide with a hydathode at the tip. [ 2 ] [ 3 ] The flowers are small, less than 1 cm in diameter, with 5 bifid white petals, 1–3 mm long, nestled inside the larger (3–5 mm long) sepals.
Here it is important to understand that it is common practice to give a name to a muscle group (e.g. elbow flexors) based on the joint action they produce during a shortening contraction. However, this naming convention does not mean they are only agonists during shortening. This term typically describes the function of skeletal muscles. [8]
[1] A corolla of separate petals, without fusion of individual segments, is apopetalous. If the petals are free from one another in the corolla, the plant is polypetalous or choripetalous; while if the petals are at least partially fused, it is gamopetalous or sympetalous. In the case of fused tepals, the term is syntepalous. The corolla in ...
The flowers are borne singly in leaf axils and lack a stalk. There are 5 linear sepals which are 10–15 mm (0.4–0.6 in) long, almost claw-like at the tip and covered with a thick layer of hairs similar to those on the leaves. The petals are 25–35 mm (0.98–1.4 in) long and are joined at their lower end to form a tube.