Difference between revisions of "Goniocyst"
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| − | '''goniocyst''' (''pl.'' goniocysts; '' | + | '''goniocyst''' ([[Category:Noun]][[:Category:Noun|noun]], ''pl.'' goniocysts; ''variant spelling:'' [[goniocystula]], ''pl.'' [[goniocystulae]]) – a small (''[[ca.]]'' 12-40 um diam.) aggregation of [[photobiont]] cells surrounded by short-celled hyphae without an [[amorphous layer]], forming a discrete, [[ecorticate]], ± globular structure which is not a [[soredium]] because the photobiont is completely enclosed; e. g., (1) [[granular]] [[thallus]] particles forming the ''Botrydina'' stage of ''Omphalina'' sp. (i. e., the [[anamorphic]], [[thalline]] part of a [[basidiomycetous]] lichen); (2) [[granular]], [[asexual]] reproductive particles produced within [[goniocystangia]] of some [[tropical]] [[foliicolous]] lichens; (3) granular [[thallus]] particles produced by ''Micarea'' spp. |
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Latest revision as of 02:00, 7 December 2005
goniocyst (noun, pl. goniocysts; variant spelling: goniocystula, pl. goniocystulae) – a small (ca. 12-40 um diam.) aggregation of photobiont cells surrounded by short-celled hyphae without an amorphous layer, forming a discrete, ecorticate, ± globular structure which is not a soredium because the photobiont is completely enclosed; e. g., (1) granular thallus particles forming the Botrydina stage of Omphalina sp. (i. e., the anamorphic, thalline part of a basidiomycetous lichen); (2) granular, asexual reproductive particles produced within goniocystangia of some tropical foliicolous lichens; (3) granular thallus particles produced by Micarea spp.
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