amphithecium

Term Information

Accession
PO:0030084
Aspect
plant anatomy
Synonyms
exact: anfitecio (Spanish)
exact: アンフィテシウム細胞 (Japanese)
Definition
A portion of plant tissue that is the outer layer or layers of a sporangium early in sporangium development. [source: ISBN:0962073342]
Comment
Term used for bryophytes. May have one or more layers. An amphithecium may give rise to an exothecium and other layers of a sporangium wall (jacket layer or layers). In true mosses, the amphithecium gives rise to the sporangium wall and the peristome. In hornworts and peat mosses, it gives rise to the sporangium wall and sporogenous tissue.

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External References

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