| 单词 | perigone |
| 例句 | Sometimes, as usually in monocotyledons, the calyx and corolla are similar; in such cases the term perianth, or perigone, is applied. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5 "Fleury, Claude" to "Foraker" 2011-04-03T02:00:20.883Z To these leaves surrounding the sporophylls, the general name of “perianth” or “perigone” is given. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses These six leaves constitute the perigone of the flower; the three outer are called sepals, the inner ones petals. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses The structure of the leaves of the perigone is much like that of the green leaves, but the tissues are somewhat reduced. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses In all of these, except Trillium, the perigone leaves are colored alike, and the leaves parallel-veined; but in the latter the sepals are green and the leaves broad and netted-veined. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses There are three circles of leaves forming the perigone, the two outer being more or less membranaceous, and only the three inner petal-like in texture. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses The flowers are inconspicuous, borne usually in close spikes, and destitute of a perigone or having this reduced to small scales or hairs. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses |
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