| 单词 | antheridial |
| 例句 | Stems brownish-green, rigid, tenacious; leaves remote, scarcely decurrent, obliquely elliptic-ovate, opaque, the cells round and strongly chlorophyllose; diœcious; the antheridial spike lateral below the keel of a leaf, long, linear, somewhat obtuse. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z To study them in their natural position, thin longitudinal sections of the antheridial branch should be made. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses The sexual organs are developed in groups at the apices, the antheridial group usually terminating the main axis while the archegonia are borne on a lateral branch. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" Fructification: ovate spores and tufts of antheridial cells attached to the lateral ramuli, which consist of minute, radiating, dichotomous beaded filaments. Scientific American Supplement, No. 384, May 12, 1883 Fructification: zoospores produced from the cell contents of the filaments; resting spores formed from the contents of particular cells after impregnation by ciliated spermatozoids produced in distinct antheridial cells. Scientific American Supplement, No. 384, May 12, 1883 Reproduction by zoospores formed of the whole contents of a cell, with a crown of numerous cilia; resting spores formed in sporangial cells after fecundation by ciliated spermatozoids formed in antheridial cells. Scientific American Supplement, No. 384, May 12, 1883 The antheridial branches are often bright-colored, red or yellow, so as to be very conspicuous. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses |
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