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A cyclic flower is a flower type formed out of a series of whorls; [1] sets of identical organs attached around the axis at the same point. Most flowers consist of a single whorl of sepals termed a calyx; a single whorl of petals termed a corolla; one or more whorls of stamens (together termed the androecium); and a single whorl of carpels termed the gynoecium.
No plant family has such a diverse range of flowers. Flowers are highly specialized in relation to their pollinators . Flowers are hermaphrodite (rarely unisexual), generally zygomorphic (bilaterally symmetrical), usually resupinates (i.e., the floral parts rotate 180° during development), often conspicuous and epigynous (i.e., the perianth ...
Leaf whorls occur in some trees such as Brabejum stellatifolium and other species in the family Proteaceae (e.g., in the genus Banksia). In plants such as these, crowded internodes within the leaf whorls alternate with long internodes between the whorls. The morphology of most flowers (called cyclic flowers) is based on four types of whorls:
It is common in members of the family Crassulaceae [2] Decussate phyllotaxis also occurs in the Aizoaceae. In genera of the Aizoaceae, such as Lithops and Conophytum, many species have just two fully developed leaves at a time, the older pair folding back and dying off to make room for the decussately oriented new pair as the plant grows. [3]
The Polemoniaceae (Jacob's-ladder or phlox family) are a family of flowering plants consisting of about 27 genera [2] with 270–400 species of annuals and perennials native to the Northern Hemisphere and South America, with the center of diversity in western North America.
The plants are most often hermaphrodite but sometimes polygamomonoecious. The fruit can be a berry , drupe , capsule or samaras . The obvious feature that distinguishes Oleaceae and its sister family, Carlemanniaceae , from all others, is the fact that while the flowers are actinomorphic, the number of stamens is reduced to two.
Polygonatum / ˌ p ɒ l ɪ ˈ ɡ ɒ n ə t əm /, [2] also known as King Solomon's-seal or Solomon's seal, is a genus of flowering plants.In the APG III classification system, it is placed in the family Asparagaceae, subfamily Nolinoideae (formerly the family Ruscaceae). [3]
The cyclic model of succession was proposed in 1947 by British ecologist Alexander Watt.In a seminal paper on vegetation patterns in grass, heath, and bog communities, [4] Watt describes the plant community is a regenerating entity consisting of a "space-time mosaic" of species, whose cyclic behavior can be characterized by patch dynamics.