单词 | midvein |
例句 | 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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