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The flower of Nyctanthes arbor-tristis is the official state flower of West Bengal and is called shiuli or shephali in Bengali. [13] The "shiuli" flowers bloom during the autumn season in Bengal and are offered to goddess Durga on the festival of Durga Puja. The flowers are associated with the autumn season and Durga Puja in Bengal. Many Durga ...
Plant reproduction is the production of new offspring in plants, which can be accomplished by sexual or asexual reproduction. Sexual reproduction produces offspring by the fusion of gametes , resulting in offspring genetically different from either parent.
Anisogamy is the form of sexual reproduction that involves the union or fusion of two gametes which differ in size and/or form. [12] The smaller gamete is considered to be male (a sperm cell), whereas the larger gamete is regarded as female (typically an egg cell, if non-motile).
The evolutionary shift from outcrossing to self-fertilization is one of the most frequent evolutionary transitions in plants. Since autogamy in flowering plants and autogamy in unicellular species is fundamentally different, and plants and protists are not related, it is likely that both instances evolved separately.
Plant reproductive morphology is the study of the physical form and structure (the morphology) of those parts of plants directly or indirectly concerned with sexual reproduction. Among all living organisms, flowers , which are the reproductive structures of angiosperms , are the most varied physically and show a correspondingly great diversity ...
In plants, vivipary occurs when seeds or embryos begin to develop before they detach from the parent. Plants such as some Iridaceae and Agavoideae grow cormlets in the axils of their inflorescences. These fall and in favourable circumstances they have effectively a whole season's start over fallen seeds.
Vegetative reproduction (also known as vegetative propagation, vegetative multiplication or cloning) is a form of asexual reproduction occurring in plants in which a new plant grows from a fragment or cutting of the parent plant or specialized reproductive structures, which are sometimes called vegetative propagules. [1] [2] [3]
Alstonia scholaris, commonly called blackboard tree, scholar tree, milkwood or devil's tree in English, [3] is an evergreen tropical tree in the dogbane family (Apocynaceae).It is native to southern China, tropical Asia (mainly the Indian subcontinent and Southeast Asia) and Australasia, where it is a common ornamental plant.