Sentence examples for midrib from inspiring English sources

In pinnately lobed margins the leaf blade (lamina) is indented equally deep along each side of the midrib (as in the white oak, Quercus alba), and in palmately lobed margins the lamina is indented along several major veins (as in the red maple, Acer rubrum).

Soon after the cells of the marginal meristems begin to divide, procambial strands differentiate into the leaf from the stem bundles to form the midvein, or midrib.

The more numerous "leafy" liverworts superficially resemble mosses, but most notably differ in having lobed or divided leaves that are without a midrib and are positioned in three rows.

The leaf of the remarkable genus Cymophyllus from the eastern United States appears to be a broad, flat blade without a sheath, midrib, or ligule; however, the apparent blade is evidently an expanded and opened bladeless sheath.

The thallus, or flat, gametophyte, usually lacks a midrib.

The glossy, bright green leaves, about 23 cm (9 inches) long and narrow toward the base, are divided almost to the midrib into seven or nine lobes; they turn wine red in autumn.

Stangeria leaves and those of the recently described Chigua are unique in possessing pinnately veined leaflets with midribs and side veins.

They are usually made from palm-leaf midribs or from wood or bamboo splinters, and they may vary from 4 to 100 cm (1.5 to 40 inches) in length.

Chigua reveals features hitherto undescribed in any American genus or species, for the specimens, which in most respects resemble Zamia, are unique in having leaflets with midribs and lateral veins, a characteristic formerly known only in Stangeria.

Cycas pinnae also have midribs, but these lack side veins altogether.

In Paraguay and parts of Argentina the leaves, with midribs removed before roasting, are made into a mate called caaminí.