midvein
美 
英
例句
Stomatal apparatuses are oval, and the long axes of stomata are mostly perpendicular or oblique to the midvein.
气孔器椭圆形，长轴与叶片长轴垂直或成一定的角度。
Petals broadly obovate, white, rarely pinkish or purplish, midvein yellow or yellow-green, base cuneate, with an inflexed apex.
花瓣宽倒卵形，白色，很少带粉红色或略带紫色的，黄或黄绿色，基部楔形，具内折先端。
Leaf blade sometimes folded, base slightly broadened, margin cartilaginous, apex acuminate, midvein scabrous.
叶片有时折叠，稍扩大的基部，边缘软骨质，先端渐尖，中脉粗糙。
leaf blade lanceolate or oblong, with several pairs of longitudinal veins parallel to a distinct midvein.
叶片披针形或者长圆形，有几对平行的纵裂或一个显著的中脉。
Leaf blade without an obvious midvein but with many, slender, longitudinal veins dichotomous in basal region and converging toward apex.
没有一明显的中脉的但是具很多的叶片，纤细，纵向脉在基部的地区和会聚的向先端二歧。
Inflorescences umbels, sessile, borne on midvein of leaf blade, rarely on petiole of leaves on upper part of young branches.
伞形花序，无柄，生于叶片的中脉上，少数生于幼枝的叶柄的上部。
Leaves basal, tufted, grasslike, lanceolate to linear, with a conspicuous midvein.
叶基生，丛生，草状，披针形到线形，有一明显中脉。
Leaves pectinate-pinnatifid, with up to 11 lobes on each side of midvein; stigma prominently 2-lobed, lobes subdecurrent.
羽状半裂叶栉状，具可达11裂片在中脉两边各；柱头显著2裂，裂片。
Petals yellow, outer reddish-tinged, ovate, midvein elevated on both surfaces, apex narrowly inflexed.
花瓣黄色，外部带红色微染，卵形，中脉两面突起，先端狭内折。
Leaf blade secondary veins 6-8 on each side of midvein, apex acute and with a retuse tip.
叶片次脉6-8在中脉两边各，先端锐尖并且具一微凹的端部。
A prominent, simple vein or rib of a leaf. See illustration for midvein.
叶的明显而简单脉或肋。
bracts lanceolate, margin and midvein sparsely hirtellous, apex long acuminate.
苞片披针形，边缘和中脉疏生，先端长渐尖。
inner ones with purple midvein, sometimes slightly longer than outer ones, apex acute, shortly pointed.
紫色中脉的内部的具，有时稍长于外部的，先端锐尖，短尖。
Corolla tubular-campanulate; leaf with fine veins inconspicuous on both surfaces; abaxially densely floccose towards base on midvein.
花冠管状钟状叶具细脉两面不明显；背面被丛卷毛向基部在中脉上的浓密。
41 (40) Leaflet blades abaxially pubescent at least on midvein toward base or secondary veins.
对于基部或次脉的小叶叶片背面具短柔毛至少在中脉上。
Leaf blade margin conspicuously serrate, crenate serrate, or sparsely serrate, midvein adaxially raised.
显著叶片边缘有锯齿，圆齿状锯齿，或疏生有锯齿，正面突起。
Sepals lanceolate to ovate-lanceolate, 3-veined, midvein raised, lateral veins not obvious, margin white membranous, apex acute.
萼片披针形到卵状披针形，3脉，中脉凸起，不明显的侧脉，边缘白色膜质，先端锐尖。
Leaves petiolate; leaf blade usually membranous, secondary veins 4 on each side of midvein, tertiary veins parallel, margin dentate.
叶具叶柄叶片通常膜质，次脉4在中脉两边各，平行的第三脉，边缘具牙齿。
Petiolule and midvein of blade densely yellow pubescent, without fine prickles.
小叶柄和叶片中脉密被黄色短柔毛，没有细皮刺。
Leaf blade with only midvein and lateral veins pubescent abaxially; male pedicels, sepals outside, and capsules glabrous.
叶片具只中脉和侧脉短柔毛背面；雄花花梗，萼片外面和蒴果无毛。
Style deeply lobed, ca. as long as ovary; young leaf blade obovate to obovate-oblong, rarely oblanceolate, abaxially comose along midvein.
深裂的花柱，约与子房等长；年轻的叶片倒卵形的到倒卵状长圆形，很少倒披针形，背面的具丛毛的沿中脉。
Inflorescences axillary, sometimes borne on petiole or leaf midvein.
花序腋生，有时生叶柄或叶中脉。
upper lemma lanceolate, midvein produced into mucro or poorly developed short awn.
披针形，中脉的上面外稃进短尖头或生产发育不良短。
Leaf blade abaxially pubescent along midvein. Bracts ovate-oblong or ovate, both surfaces pilose or glabrous distally.
叶片背面短柔毛沿中脉。苞片卵形长圆形或卵形，两面具柔毛或无毛上部。
Leaf blade oblong-elliptic, adaxially pubescent along midvein, apex abruptly acute to shortly acuminate.
叶片长圆状椭圆形，正面青春期的沿中脉，先端突然锐尖的到短渐尖。
Branchlets nearly glabrous; adaxial surface of leaf blade glabrous except on midvein; inflorescences minutely puberulent.
小枝近无毛；叶片除了中脉外无毛的正面；花序稍被微柔毛。
Fruit with prominent midvein and two lateral veins, widest at middle, light brown.
突出中脉的果具和二侧脉，宽在中部，浅褐色。
leaf blade pubescent, secondary veins 2 on each side of midvein, tertiary veins numerous and parallel, margin entire.
叶具叶柄叶片短柔毛，次脉在中脉两边各2，第三脉多数和平行，边缘全缘。
floral bracts obovate, occasionally crested along midvein, glabrous or abaxially with some short hairs.
花的苞片倒卵形，偶有具脊的沿中脉，无毛的或背面具一些短毛。
Stellate hairs of leaf blade abaxial midvein without long central rays.
没有长的中心的射线背轴中脉的叶片的星状毛。
Buds, petioles, young leaves, midvein adaxially and mature leaves puberulent.
芽，叶柄，幼叶，中脉正面和成熟叶子被微柔毛。
Leaves abaxially rusty tomentose on midvein and lateral veins to throughout entire surface.
叶背面锈色绒毛在中脉和侧脉上到在整个全缘的表面。
lateral veins ca. 30 pairs, nearly at a right angle to midvein, flattened on both surfaces.
约的侧脉30对，近在一个直角对中脉，扁平的在两面。
lobes linear-lanceolate, 8-10 mm, margin ciliolate, apex acuminate, midvein outside strongly keeled and decurrent into wings of calyx tube.
裂片线形披针形，8-10毫米，边缘具短缘毛，先端渐尖，进萼筒的翅中脉在外面强烈龙骨状和下延。
lateral veins numerous, subparallel, almost at a right angle to midvein.
侧脉多数，近平行，几乎在一直角对。
Leaflet blades abaxially densely tomentose, adaxially hairy only on midvein and lateral veins, base broadly cuneate to rounded.
小叶叶片背面的密被绒毛，正面有毛的只在中脉和侧脉上，基部宽楔形到圆形。
midvein prominent abaxially, concave adaxially, without evident lateral veins.
中脉背面突出，正面凹，没有明显的侧脉。
Leaves petiolate; leaf blade stiffly papery to sometimes membranous, secondary veins 2 or 3 on each side of midvein, margin denticulate.
叶具叶柄叶片硬纸质到有时膜质，次脉在中脉两边各2或3的，边缘具小齿。
Leaves petiolate; leaf blade ovate to oblong, secondary veins 1 on each side of midvein, margin entire.
叶具叶柄卵形到长圆形的叶片，次脉在中脉两边各1，边缘全缘。
Perianth white; segments with pale red midvein.
花被白色花被片具浅红色中脉。
