Dehiscent

dehiscent (adjective) – rupturing, splitting open, breaking apart; referring to asci that release their spores when breaking apart, a process that often occurs at the ascus apex and is then frequently accompanied by a forcible, "explosive" ejection of the ascospores (ascospore discharge; e. g., bitunicate, or lecanoralean asci), less frequently the ascus wall disintegrates without force (e. g., prototunicate asci).

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Other Resources: Flora Australia Fungi, Lichens  •  Glossary at Mushroom  •  Cornell Pl. Path.  •  APS Pl. Path.: A-D E-H I-M N-R S-V W-Z.
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