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Calyx (botany), the collective name for the sepals of a flower; Calyce, a genus of beetles; Calyx, a genus of sea sponges; Calyx of Held, a large synapse in the auditory brainstem structure; Eubela calyx, species of sea snail; Renal calyx, a chamber in the kidney that surrounds the apex of the renal pyramids
Calyx is a term used in animal anatomy for some cuplike areas or structures. Etymology. Latin, from calyx (from Ancient Greek κάλυξ, case of a bud, husk").
The large calyx of the medlar fruit is the source of its vulgar nicknames. The term sepalum was coined by Noël Martin Joseph de Necker in 1790, and derived from Ancient Greek σκέπη (sképē) 'covering'. [5] [6] Collectively, the sepals are called the calyx (plural: calyces), [7] the outermost whorl of parts that form a flower
calyx. pl. calyces. Collective term for the sepal s of one flower; the outer whorl of a flower, usually green. Compare corolla. calyx tube A tube formed by the fusion of the sepals (calyx), at least at the base. cambium Tissue layer that provides partially undifferentiated cells for plant growth. campanulate Bell-shaped. camptodromous
The sepals, collectively called the calyx, are modified leaves that occur on the outermost whorl of the flower. [2] They are leaf-like, in that they have a broad base, stomata and chlorophyll and may have stipules. Sepals are often waxy and tough, and grow quickly to protect the flower as it develops.
An epicalyx, which forms an additional whorl around the calyx of a single flower, is a modification of bracteoles [7] In other words, the epicalyx is a group of bracts resembling a calyx or bracteoles forming a whorl outer to the calyx. [8] It is a calyx-like extra whorl of floral appendages.
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Calyx of Held microstructure. The calyx of Held is a particularly large excitatory synapse in the mammalian auditory nervous system, so named after Hans Held who first described it in his 1893 article Die centrale Gehörleitung [1] [2] because of its resemblance to the calyx of a flower. [3]