| 释义 |
‖ nemathecium Bot.|nɛməˈθiːʃ(ɪ)əm|
Pl. -ia.
[mod.L. (Agardh), f. Gr. νῆµα thread + θήκη box, chest, sheath, etc.]
A warty protuberance developed in some of the florideous algæ, usually containing tetraspores.
1830Greville Algæ Brit. 131 Dark red masses..composed entirely of vertical moniliform filaments (nemathecia of Agardh). Ibid. 136 The nemathecia are very beautiful under the microscope. 1841Harvey Man. Brit. Algæ 78 Nemathecia also frequently occur on the frondlets. 1899Darbishire in Annals Bot. XIII. 262 The extramatrical filaments gradually form the nemathecium of the parasite.
Comb.1846–51Harvey Phycologia Brit. III. (Syn. 198), Mr. Dillwyn was..the first to notice the nemathecia⁓fructification. |