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What is the floral formula of family Fabaceae?
In Fabaceae, the floral characters show the corolla with five petals, polypetalous, papilionaceous and vexillary aestivation. The flower is complete, bisexual, zygomorphic, hypogynous and bracteate types. Sepals are five which are gamosepalous, with valvate or imbricate aestivation.
Are dandelions and sunflowers related?
The largest family of flowering plants is the ubiquitous sunflower family (Asteraceae or Compositae). ... Familiar common names, such as daisies, marigolds, zinnias, gazanias, chrysanthemums, dandelions, thistles, ragweeds, sagebrush, cosmos and dahlias all belong to this family.
What is Cyathium inflorescence?
Cyathium is a type of inflorescence in which a cup-like cluster of modified leaves encloses a female flower and several male flowers. It resembles a single flower. For example, Poinsettia.
What is special type of inflorescence?
Some inflorescences undergo modifications. It results in peculiar arrangement of flowers and opening of flowers. Such inflorescences are called special types. Verticillaster, cyathium and hypanthodium are the special types.
What is acropetal and Basipetal?
Acropetal order(modified form of racemose inflorescence)refers to the arrangement of flowers on the pedicel that the new flowers and buds are at the apex and the older flowers are at the base whereas vice-versa is for basipetal order which is a modified form of cymose inflorescence (i.e new flowers are at the bottom ...
What is Dichasial cyme?
Definition. A determinate inflorescence in which growth of the central axis is terminated by a flower that opens first and each pair of branches subtending this flower then is terminated by a single flower.
What is simple cyme?
- Dichasium (or simple cyme) - a determinate inflorescence with a terminal flower that opens first, and two opposite flowers below it (three flowers in all).
What is Spike inflorescence?
Spike. A spike is an unbranched, indeterminate inflorescence, similar to a raceme, but bearing sessile flowers (sessile flowers are attached directly, without stalks). Examples occur on Malabar nut (Justicia adhatoda) and chaff flowers (genus Achyranthes).
Why do small flowers grow inflorescence?
Inflorescences are complex structures with many functions. At anthesis they present the flowers in ways that allow for the transfer of pollen and optimization of the plant's reproductive success. During flower and fruit development they provide nutrients to the developing flowers and fruits.
What are terminal flowers?
In plants two types of flower are classified based on the position of the flower. The flower which grows at the tip of the plant is called as Terminal flower, whereas the flower which grows in stem regions other than tip of the plant is called as axial flower.
What is a cluster of flowers called?
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. ... The stalk of each flower in the inflorescence is called a pedicel.
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