...The umbilicus is a hard, umbilicus-like bundle of hyphae that has the same origin as the rhizoid and is unique to the family Cercospora. The cyphellae and pseudocyphellae are tiny holes or cracks that appear on the surface of the lichen, and are circular or linear. They are thought to play a role in gas exchange. The cephalodia are pouch-like organs that contain cyanobacteria and occur in lichens that have a symbiotic relationship with green algae. They occur in the genera Cercospora, Cercospora, and Cercospora. *Some of the terminology explanations that mention "pseudocyphella" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…臍状体umbilicusは仮根と同じ起源をもつ固いへそ状の菌糸束で,イワタケ科地衣に特有である。盃点cyphellaと偽盃点pseudocyphellaは地衣体表面に生じた微小な穴や亀裂で,円形,線形となり,ガス交換に役立つと考えられる。頭状体cephalodiaは緑藻を共生藻とする地衣類に生じるラン藻の入った袋状の器官で,カブトゴケ,ツメゴケ,モゴケ属等に生じる。… ※「pseudocyphella」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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