Category: S
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Synstapetalum
The length of corolla tube with fused or adnate stamens [unusual term].
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Synsepalum
Structure formed by two or more joined sepals.
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Syntepalum
A tube formed by the coherence of some sepals and petals and split along one side (e.g. in Musaceae). A tubular structure formed by the fusion of sepals and petals (and split along one side like in Musaceae).
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Synonym
(In nomenclature) a surplus scientific name, belonging to a taxon which already has a valid name; where two or more names are applied to the same taxon they are called synonyms but only one of these can be correct — usually this is the oldest (principle of priority) but the correct name may be a…
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Synoecious
With female and male flowers or organs in the same inflorescence.
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Syngenesious
With anthers fused but filaments free [unusual term]. Said of stamens when united by their anthers.
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Syngameon
Group of individuals able to interbreed and produce viable offspring.
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Synflorescence polytele
The inflorescence system in which the inflorescence axes fail to terminate in flowers [obscure term].
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Synflorescence
(In general) a compound inflorescence, composed of a terminal inflorescence and one or more lateral ones, or a group of inflorescences in a globose or subumbellate arrangement; (In Compositae/Asteraceae) a compact arrangement of capitula within a common (secondary) involucre.
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Synema
Staminal tube [unusual term, not recommended].