单词 |
monosiphonous |
释义 |
monosiphonous, a. Bot.|mɒnəʊˈsaɪfənəs| [f. Gr. µόνο-ς mono- + σίϕων tube, pipe (siphon) + -ous.] Having a single siphon; applied to certain Algæ (Florideæ) in which a transverse section of the frond shows only a single large, elongated central cell or siphon not surrounded by smaller similar cells. So monosiphonic |-saɪˈfɒnɪk| a.
1853Harvey Nereis Boreali-Amer. ii. 8, IX. Wrangeliaceæ. Frond filiform, monosiphonous. 1857Berkeley Cryptog. Bot. §133 Of those green Algae which are masked by calcareous matter, there are two series distinguished by their monosiphonous or polysiphonous stems. 1888Vines in Encycl. Brit. XXIV. 126/2 The filaments [of the Phæosporeæ] may consist of single rows of cells (monosiphonous), as in most Ectocarpeæ, or of several rows of cells (polysiphonous), as in the Mesoglæaceæ. 1900B. D. Jackson Gloss. Bot. Terms, Monosiphonic. |

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