midrib

Abaxial leaf surface pubescent, at least along midrib; style glabrous.

Cut or lobed to, essentially to the base or to the midrib.

Branches usually flattened, leaflike, with a stout midrib, soft, spineless.

adaxial surface sparsely or densely scaly, scales unequal, often absent by maturity, hairs usually absent, rarely pubescent along midrib.

midrib conspicuously raised, lateral veins inconspicuous, concave or obscure.

endocarp globose, slightly oblique, convex, with conspicuous, scattered netlike strips, midrib projecting.

Leaf blade with both surfaces glabrous except for glandular-setose base of midrib, abaxial surface smooth to rugose.

Leaf bud scales persistent; ovary, calyx, corolla tube, capsule, and midrib on abaxial leaf surface setose.

branches usually flattened and leaflike, or 3-winged, with stout midrib, margins crenate, coarsely serrate, or lacerate, sometimes horny.

base cuneate, truncate, or subcordate, margin irregularly serrate and sometimes double serrate, apex acute, midrib concave.

Branchlets and leaf midrib glabrous; abaxial leaf surface glabrous, sparsely and inconspicuously black punctate.

midrib inconspicuous, lateral veins invisible.

midrib prominent on both surfaces, lateral veins slender, branching well before margin.

adaxial surface usually scaly, otherwise glabrous or pubescent along midrib.

rachis winged, midrib triquetrous, margins scabrous.

endocarp with inconspicuous midrib, with faveolate cavities. Fl.

midrib prominent on both surfaces, lateral veins obscure on both surfaces or visible on upper surface.

Pedicels, ovary, and lower part of style with dense hairs; leaf blade obovate, abaxial surface of midrib with dense brown hairs.

Leaf blade oblique at base, lateral veins obliquely ascending, midrib with pale zone on both sides.

Leaf blade tessellations abaxially visible, rectangular; midrib not waxy pubescent.

Leaf blade broadly elliptic, densely pubescent abaxially, especially along midrib and veins; inflorescence glabrous or subglabrous.

adaxial surface glabrous, sometimes with vestiges of hairs in grooved midrib.

adaxial surface green, shiny, glabrous except for tomentose groove of midrib.

adaxial surface shiny, glabrous, midrib and lateral veins strongly prominent abaxially.

Young branches glabrous. Leaf blade glabrous or only puberulent along basal part of midrib adaxially.

midrib elevated abaxially, lateral veins 7-9 pairs, ascending steeply and running close to margin for some distance before terminating.

Sepals deltoid, often with midrib and median basal callus, persistent in fruit.

midrib elevated on both surfaces, lateral veins and veinlets visible on both surfaces or adaxially more distinct.

Young branches and leaf blade glabrous or leaf blade only puberulent along basal part of midrib adaxially.

Sepals 5, free, leathery, with conspicuous midrib, margin membranous, apex long acuminate.

adaxial surface deep green, sparsely scaly, densely white-pubescent and thinly hispid, midrib raised abaxially, concave adaxially.

Corolla with brown spots inside; scales on abaxial leaf surface uniform; leaf midrib adaxially glabrous.

midrib elevated on both surfaces, lateral veins dense and visible on surface.

Leaf blade tessellations abaxially visible, square; midrib waxy pubescent along one side.

The scientists marked a lily bud with dots along each petal's edge and "midrib" or central vein.

midrib prominent abaxially, grooved adaxially, lateral veins inconspicuous or invisible.

Leaf blade abaxially pubescent along one side of midrib; veins forming square tessellations.

adaxial surface glabrous; midrib and lateral veins prominent abaxially.

Branchlets, leaf rachis, leaf petiole, and lower side of leaflet midrib minutely pubescent.

Fruit lens-shaped, attached to midrib of accrescent, membranous, reticulately veined floral subtending bract.

Branchlets, leaf rachis, leaf petiole, and lower side of leaflet midrib densely pubescent.

adaxial surface glabrous except in grooved midrib.

midrib raised abaxially, often grooved adaxially, lateral veins inconspicuous, much varied.

Costa: a rib or a riblike part, such as the midrib of a leaf or a thickened anterior vein or margin of an insect's wing.

midrib elevated on both surfaces, lateral veins 6-10 pairs, delicate, obliquely ascendant, anastomosing near margin.

Culm sheaths auricles long, falcate; leaf blade abaxially hairy along both sides of midrib.

midrib impressed or plane adaxially, elevated abaxially, lateral veins pinnate, obscure on both surfaces.

adaxial surface deep green, sparsely scaly, midrib and lateral veins raised abaxially, concave adaxially.

Culm sheaths auricles shorter, subfalcate; leaf blade abaxially hairy along only one side of midrib.

lateral veins ca. 15 on each side of midrib, ending in marginal glands, marginal vein present.

Leaves and stipules abaxially glabrous; midrib and lateral veins adaxially flattened.

lateral veins ca. 15 on each side of midrib, inconspicuous, marginal vein absent.

rachis winged, ca. 1 mm broad, midrib triquetrous, margins scabrous.

lateral veins at narrow angle to midrib, obscure abaxially, conspicuous adaxially.

Through seven rounds of midrib Fleming Mar.

midrib and lateral veins in 10-14 pairs, slightly elevated on both surfaces, subparallel, ascending to margins, curved anastomosing.

The midrib and larger veins in a leaf.

midrib, lateral and net veins impressed adaxially.

lateral veins 5 or 6 pairs, conspicuous, slender, obliquely spreading from midrib.

Leaflets pubescent abaxially along midrib, margin glabrous, petiolule 4-7 mm; drupe unsymmetrical.

midrib raised on both surfaces.

lateral veins ca. 12 on each side of midrib, marginal vein absent.

lateral veins 15-20 on each side of midrib, prominent, raised, marginal vein absent.

midrib raised, pubescent adaxially, especially near petiole, primary veins 4 or 5 on each side of midrib, obscure.

Changes the nature ensiform leaf blade to be tall and slender. It has the obvious midrib.

8 (7) Lateral veins 10-12 pairs, base of midrib on both surfaces and of leaf blade margin equally densely stiffly papillate.

midrib elevated on both surfaces, lateral veins pinnate, basal a subtriplinerved pair, distance 6-8 mm from base.

3 (2) Abaxial leaf surface gray with clearly distinct reddish brown midrib.

midrib elevated on both surfaces, basal lateral veins a pair, distance 2-5 mm from base, to distinctly triplinerved.

Leaf blade papery, apex retuse, sometimes midrib forked at apex, style 0. 7-1 mm, densely yellowish brown sericeous.

midrib abaxially prominent, adaxially slightly impressed, lateral veins 14-18 pairs, arching and distinctly looped.

basal veins 3-5, glanduliferous along midrib on abaxial surface.

venation pinnate, midrib elevated on both surfaces, lateral veins 6 or 7 pairs, flattened adaxially, elevated abaxially.

lateral veins 10 or 11 per side of midrib, slender, at narrow angle to midrib.

midrib flattened adaxially, lateral veins 8-10 on each side of midrib, marginal vein absent.

midrib raised; primary veins 6 or 7 on each side of midrib, obscure.

Petiolules 0-5 mm, pubescent; leaflets with 7-10 primary veins on each side of midrib, margin entire or serrulate in upper part.

Leaf blade papery, apex retuse; midrib sometimes forked into 2 at apex. Style 0. 7-1 mm, densely yellowish brown sericeous.

midrib slightly raised abaxially, lateral veins 4-6 pairs, conspicuous abaxially as are reticulate veins, obscure adaxially.

primary veins 11 or 12 on each side of midrib, adaxially slightly impressed, abaxially raised.

leaf blade linear or linear-oblanceolate, 1. 5-2. 5 mm wide, glabrous except for midrib abaxially.

abaxial surface purple or green, whitish tomentose and with a few glandular hairs, especially on the midrib;

abaxial surface setose and sparsely tomentose, tomentum quickly lost at least towards apex, or persistent, midrib densely glandular-setose;

abaxial surface floccose or not on midrib, rarely with a sparse white stellate indumentum (R. asterochnoum);

abaxial surface greenish, sparsely glandular-hairy when young, glabrescent, midrib densely glandular-setose;

abaxial surface persistently tomentose towards base, especially near prominent midrib, hairs stellate;

abaxial surface scales dense, yellow to brown, large, unequal or all similar, often without hairs, sometimes pubescent along midrib;

abaxial surface persistently pale white-brown to rufous tomentose, sometimes only on the midrib, hairs branched;

Changes in Nicotine Conversion Rate in Lamina and Midrib of Burley Tobacco and between from Different Stalk Positions

sepals 4, biseriate, unequal, often outer ones narrower, membranous or papery, entire or denticulate, with midrib and branching veinlets;

abaxial surface pale green, scales sparse, unequal, brown, midrib sparsely setose;

both surfaces glabrous except for glandular-setose midrib and main veins, setae towards base;

abaxial surface glabrous except sometimes for densely woolly midrib;

Leaf blades cauline, narrowly to broadly linear, midrib usually broad, white;

adaxial surface green, smooth, glabrous or with vestiges of juvenile hairs on the midrib;

adaxial surface green, slightly rugose, glabrous, midrib grooved adaxially;

adaxial surface deep green, slightly floccose when young, glabrous when mature, midrib prominent abaxially, grooved adaxially;

adaxial surface glaucous, glabrous when mature, midrib grooved adaxially;

Leaf venation palmate, midrib indistinct;

abaxial surface pale, only lower half of midrib densely fine branched-hairy;

adaxial surface glabrous except for groove of midrib towards base;

abaxial surface pale green, midrib with verrucose spots;

adaxial surface green, glabrous, midrib plane or slightly grooved adaxially;

apex acute; abaxial surface at first sparsely strigose, later sometimes coarsely strigose on midrib only;

adaxial surface deep green; midrib slightly raised abaxially, slightly grooved adaxially;

adaxial surface green, glabrous when mature, midrib raised abaxially, grooved adaxially;

abaxial surface with hairs only on the midrib and lateral veins;

adaxial surface glabrous; midrib raised abaxially, concave adaxially;

adaxial surface green, glabrous, midrib and lateral veins raised abaxially, flat adaxially;

central segment obovate, base cuneate, midrib elongate to tip, apex acute to sub truncate, usually shallowly 3-lobed;

Leaves ovate to lanceolate, primary veins 1-3 on each side of midrib, obscure, sometimes only basal pair slightly obvious;

midrib distinct and prominent abaxially, deeply grooved adaxially;

adaxial surface green; midrib raised abaxially, grooved adaxially;

rachis broadly winged, ca. 1 mm broad, midrib low, margins scabrous;

Application for Brown Midrib Mutant on Silage Corn

midrib and lateral vein raised;

Leaflets 9-19, without stipels, rachis and midrib sparsely pubescent;

sepals 6, oblong, ca. 1 mm, margin entire, membranous, midrib thicker abaxially, persistent in fruit;

Female flowers: sepals 6, lanceolate, ca. 5 mm, midrib elevated abaxially, persistent in fruit;

sepals 5, red, lanceolate, ca. 2. 5 mm, nearly equal, midrib slightly thicker abaxially, margin membranous, deeply lacerate;

Male flowers: sepals (4 or)5 or 6, free, in 2 series, imbricate, oblong-elliptic, midrib elevated abaxially, apex caudate-acuminate;

Petiole 2-4 cm, apex or base of midrib with 2 stalked and cupular glands;