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叶状

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Leaves needlelike, scalelike, or both, base of needlelike leaves not jointed, decurrent; cones terminal; seed cones with 3-8 decussate or whorled cone scales.

针状的叶,鳞片状,都或,基部的针状叶不具关节,;孢子叶球顶生;球果具3-8交互对生的或轮生珠鳞。

The results indicate that all of the peltate glandular hairs and head glandular hairs are from an origin—protoderm on the leaf primordium and young leaf, which outgrows on leaf surface and increase radial broad and form the initial cells of the glandular hairs.

研究结果表明,唇形科的腺毛不论是盾状腺毛类还是头状腺毛类,在发育上都是单起源的,即所有的腺毛均起源于叶原基或幼叶上的原表皮细胞。该细胞在叶表面向外突出生长,径向加宽,形成腺毛原始细胞。

Leaves spirally arranged, spreading radially, or directed forward on upper side of branchlets and spreading on lower side, each inserted on a petiolelike pulvinus, linear, straight or curved, quadrangular, broadly rhombic, or flattened in cross section, stomatal lines adaxial or on each surface, vascular bundle 1, resin canals 2, sometimes small and discontinuous. Pollen cones solitary in leaf axils, rarely terminal, ellipsoid or cylindric; pollen 2-saccate.

螺旋状排列,平展的叶光线,或在小枝和平展在下部边的上面边上向前指导,每着生于一叶柄状叶枕,线形,直或弯曲,四棱,宽棱形,或扁平的在横断面上,在叶腋,很少顶生,椭圆形的或圆筒状里的雄球花单生;花粉2囊。

Basal and cauline leaves 2 or 3; leaf sheath auricles well developed; leaf blade terete, 2--27 cm, on cauline leaves tubular and distinctly septate.

基生和茎生叶2或3;叶鞘的叶耳发育良好;圆柱状的叶片,2-27厘米,茎生叶上管状和清楚具隔的。

Leaves tufted; stipes 15-30 cm long, densely scaly at base, glabrous above; sterile lamina about 60 cm long and 20 cm wide, simply pinnate; pinnae numerous, alternate or subopposite, linear-lanceolate, the largest about 12 cm long and 1 cm wide, base cordate, apex acuminate, margin finely toothed; veins close, forking once or twice and forming areoles near the midrib; fertile lamina similar to sterile ones, but somewhat reduced, about 8 cm long and 0.4 cm wide, lower surface almost entirely covered with sporangia.

叶簇生;叶柄长15-30厘米,基部密被鳞片,向上近光滑;不育叶片长约60厘米,宽20厘米,一回羽状;羽片多数,互生或近对生,线状披针形,最长者长达12厘米,宽约1厘米,顶端长渐尖,基部心形,边缘有细密锯齿;叶脉1-2次分叉,近中脉形成网眼;能育叶与不育叶相似,但较小,长约8厘米,宽约0.4厘米,下部满布孢子囊。

Leaves spirally arranged or distichous; leaf blade simple to pinnatifid, rarely pinnate, leathery, margin entire.

叶螺旋状排列的或2列;单叶到羽状半裂,很少羽状,革质,边缘全缘。

Leaves apparently alternate, distichous; nanophylls present or absent, opposite to normal leaves; stipules 2; leaf blade 3-veined, one major lateral vein sometimes inserted above the base, or pinnately veined, base asymmetric, margin entire or serrate; cystoliths mostly present, linear or fusiform.

叶表面上互生,2列;微形叶宿存或无,对生于正常的叶;托叶2;叶片3脉,主要的一侧脉高于那些基部,或成羽状脉,基部不对称,边缘全缘或有锯齿;乳状体多数宿存,线或者纺锤形。

Leaves opposite or rarely alternate, whorled or basal, rosette forming; exstipulate; usually simple, rarely shallowly to deeply lobed, pinnately or rarely palmately veined.

叶对生和很少互生,轮生或莲座状基生;无托叶;通常单叶,很少浅裂到深裂,羽状脉,很少掌状脉。

Stems angular, glabrous. Radical leaves: stipules brown, membranous, abaxially glabrous; petiole glabrous; leaf blade with 7–9 pairs of leaflets; leaflets petiolulate, green on both surfaces, fasciated or fasciated lanceolate, 5–7 × 1.5–1.7 cm, both surfaces glabrous, base subcordate to obliquely truncate or rounded, margin acutely incised serrate, apex rounded to acute; cauline leaves: stipules green, falcate, herbaceous, margin incised serrate; leaf blade resembling that of radical leaves but leaflets fewer and narrower higher up stem.

茎具角,无毛;胚根叶:托叶使成褐色,膜,背面无毛;叶柄无毛;叶片具7-9对小叶;具小叶柄的小叶,绿色在两面,扁化或者扁化, 5-7 * 1.5-1.7 厘米,两面无毛,基部近心形在斜截形或圆形,边缘尖锐锐裂状锯齿,先端圆形的到锐尖;茎生叶托叶绿色,镰刀形,草本,给锐裂状锯齿镶边;叶片象胚根叶的那但是高的更少和狭窄的小叶向上茎。

Pinnately compound with a single terminal leaflet, as in the leaves of the rose plant.

奇数羽状叶的与顶端羽状单叶接合的,如蔷薇科植物的叶

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