单词 | epithecium |
释义 | epithecium Bot.|ɛpɪˈθiːʃɪəm| [mod.L., f. epi- 1 + thecium.] The surface layer of the fruiting body in certain lichens and fungi. So epiˈthecial a.
1879W. A. Leighton Lichen-flora Gt. Brit. (ed. 3) p. ix, The paraphyses are slender filaments..which, by their close proximity, constitute the disk or epithecium. 1921A. L. Smith Lichens iv. 158 In some genera [of lichens] there is a profuse branching of the paraphyses to form a dense protective epithecium. 1952C. J. Alexopoulos Introd. Mycology xii. 290 In some apothecia, the paraphyses..have their tips united above the asci, forming a layer we call the epithecium. 1967V. Ahmadjian Lichen Symbiosis ii. 17 Some lichens have algal cells within their fruiting tissues..either hymenial or epithecial algae, depending on their location within the fruiting body. |

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