nervure

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  • noun

Synonyms for nervure

any of the vascular bundles or ribs that form the branching framework of conducting and supporting tissues in a leaf or other plant organ

one of the horny ribs that stiffen and support the wing of an insect

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Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Leaves 3-11.5 cm long; petiole 9-25 mm long; pulvinus 0.4-1.2 mm diam; rachis 0.2-1.1 mm long, extrafloral nectaries 1, ovoid, claviform and fusiform, sessile or shortly stipitate, located between the proximal pair of leaflets, 10-28 x 0.2-0.4 mm; leaflets 2 pairs, papyraceous, abaxial surface pubescent and adaxial surface puberulent, the distal 23-80 x 8-40 mm, the proximal 12-60 x 5-34 mm, elliptic-oblanceolate, lanceolate-elliptic, obovate, ovate, venation brochidodromous, nervures 7-13 pairs, apex emarginate, short mucronate and obtuse, base cuneate, oblique, obtuse, subcordate, margin revolute, ciliated.
Leaves 2.9-5.8 cm long; petiole 13-30 mm long; pulvinus 0.6-1.1 mm diam; rachis 1-2 cm long, interfoliolar segments 0.3-1.2 cm long; extrafloral nectaries 1, fusiform, stipitate, located between the proximal pair of leaflets, 1.3-2 x 0.3-0.6 mm; leaflets 3 pairs, papyraceous, abaxial face strigose and adaxial face glabrous, the distal 21-41 x 10-21 mm, the proximal 9-26 x 5-18 mm, obovate, venation brochidodromous, nervures 7-9 pairs, apex rounded and mucronate, base cuneate and oblique, margin plane.
Leaves 0.8-22 cm long; petiole 25-42 mm long; pulvinus 1.7-2.3 mm diam; rachis 4-10.7 cm long, interfoliolar segments 0.7-2.6 cm long; extrafloral nectaries 1, ovoid, ellipsoid, sessile or short stipitate, located on the pulvinus, 1.2-2 x 1.2 1.5 mm; leaflets (3-)4-5 pairs, papyraceous, pubescent, venation brochidodromous, nervures 5-9 pairs, the proximal 10-37 x 7-24 mm, oval-elliptic, apex acuminate, base oblique-obtuse, margin plane, ciliated, the distal 26-75 x 13-30 mm, elliptic, apex acuminate, base oblique-obtuse, margin plane, ciliated.
Leaves 4.5-9.3 cm long; petiole 12-27 mm long; pulvinus 0.8-1 mm diam; rachis 2-3.8 cm long, interfoliolar segments 0.3-1.1cm long; extrafloral nectaries 1, oblong, obovoid, globose or claviform, sessile or short stipitate, located between the proximal pair of leaflets, 1-1.6 x 0.4-1.1 mm; leaflets 5 pairs, papyraceous, abaxial face pubescent, adaxial face glabrous, the distal 15-32 x 7-16 mm, the proximal 10-19 x 6-13 mm, oblanceolate to obovate, venation brochidodromous, nervures 5-7 pairs, apex emarginated, base oblique-obtuse, margin plane, glabrous.
Leaves 5-20 cm long; petiole 13-52 mm long; pulvinus 1.5-2.7 mm diam; rachis 1.8-6.8 cm long, interfoliolar segments 0.9-3.6 cm cm long; extrafloral nectaries 3-4, ovoid, turbinate, sessile or short stipitate, located between all pairs of leaflets, 1-1.5 x 0.7-1.2 mm; leaflets 3-4 pairs, chartaceous, puberulent, the distal 33-112 x 15-48 mm, the proximal 20-84 x 12-37 mm, elliptic, lanceolate-elliptic and ovate, venation brochidodromous, nervures 9-10 pairs, apex acuminate and obtuse, base oblique, margin revolute, ciliated.
Leaves 2.7-6.5 cm long; petiole 11-18 mm long; pulvinus 1-1.3 mm diam; rachis 0.4-0.7 cm long; extrafloral nectaries 1, ellipsoid, fusiform to claviform, short stipitate or stipitate, located between the leaflets of the proximal pair, 1.2-1.5 x 0.2-0.4 mm; leaflets 2 pairs, papyraceous, abaxial face pubescent and adaxial face puberulent, the distal 22-50 x 9-22 mm, the proximal 17-33 x 9-23 mm, elliptic and ovate, venation brochidodromous, nervures 6-8 pairs, apex acute, rounded and obtuse, base rounded, obliquecuneate to subcordada, margin revolute, ciliated.
Leaves 33-12.2 cm long; subsessile or short petiolate, petiole 2.5-10 (-15) mm long; pulvinus 1.2-2 mm diam; rachis 0.6-1.8 cm long; extrafloral nectaries 2, ovoid, ovoid-ellipsoid, occasionally ellipsoid-fusiform or short stipitate, sessile, located between all pairs of leaflets, 9-20 x 8-13 mm; leaflets 2 pairs, coriaceous, rough, pubescent, the distal 21-94 x 6-29 mm, the proximal 17-70 x 8-28 mm, elliptic, ellipticoblanceolate and ovate, venation brochidodromous, nervures 8-14 pairs, apex acute, emarginate and obtuse, base subcordate-oblique, margin revolute, ciliated.
In this study, we have used the geometry of the Populus tremuloides leaf, which is a common North American species (Colorado Rocky Mountains, USA) [10] to design a new antenna and investigate the effect of the leaf contour and nervure network on the performances of the structure.
The effects of the contours and the nervure networks of these fractal antennas on their radiation characteristics were investigated and analyzed.