Cycly
It explains the number of whorls of floral parts. Perianth cycly is the number of whorls of perianth (sepals, petals) parts.
1. Uniseriate: It is a single whorl of accessory(non-essential) floral part. It is less common.Example: Sterculia.
2.
Biseriate (dicyclic): It is with two
whorls of accessory floral parts. (outer=lower,inner=upper)It is the most
common type of perianth cycly. Example: Hibiscus.
3. Multiseriate: (triseriate,tetraseriate) More than two whorls of non–essential floral parts.Example: Chrysanthemum.
4. Dichlamydeous:
A flower is composed of distinct
outer calyx and inner corolla.
5.
Homochlamydeous: Perianth is un-differentiated into calyx and
corolla and com-posed of similar parts called tepals. Most monocots have a homochlamydeous perianth.
6.
Achlamydeous: Perianth is absent altogether.Flowers without petals are called apetalous and flowers without sepals are called asepalous.
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