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单词 midvein
例句 midvein
Towards the apex of the margins and midveins, the spines are short and close together like the teeth of a fine saw. Philippine Mats Philippine Craftsman Reprint Series No. 1
Sori linear, a row on either side of the midvein, and at right angles to it, the indusium appearing to be double. The Fern Lover's Companion A Guide for the Northeastern States and Canada
A variety is called interruptum and another appendiculatum, and these names both relate to the interruption of the leaves by a naked midvein. Species and Varieties, Their Origin by Mutation
Leaves: Narrow, grass-like with white midvein, fleshy, all from coated, egg-shaped bulb. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors
Fruit-dots large, round, half way between the midvein and the margin. The Fern Lover's Companion A Guide for the Northeastern States and Canada
Fruit-dots near the midvein, the sides of the sinus often overlapping. The Fern Lover's Companion A Guide for the Northeastern States and Canada
Sori in rows each side of the midvein, one to each tooth and often scattering on the lower pinules. The Fern Lover's Companion A Guide for the Northeastern States and Canada
Interrupted leaves, with an ascidium on a naked prolongation of the midvein, are by no means limited to the Croton varieties. Species and Varieties, Their Origin by Mutation
Sori numerous, rather near the midvein, stipe and rachis lustrous brown. The Fern Lover's Companion A Guide for the Northeastern States and Canada
The male fern resembles the marginal shield fern in outline, but the fronds are thinner, are not evergreen, and the sori are near the midvein. The Fern Lover's Companion A Guide for the Northeastern States and Canada
On the middle of the midvein these leaves are seen to bear small clusters of flowers; indeed this is the only place where flowers are produced. Species and Varieties, Their Origin by Mutation
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更新时间:2025/2/10 23:30:40