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无脉叶片

与 无脉叶片 相关的网络例句 [注:此内容来源于网络,仅供参考]

Leaf blade oblong lanceolate to ovate, abaxially glabrous or puberulent on midrib only; petiole and calyx glabrous

长圆状披针形的叶片到卵形,背面无毛或在中脉上唯一;叶柄和花萼无毛 20 Tylophora arenicola 老虎须

Leaves crowded near apex of the trunk, spirally arranged; stipes dark brown, with sharp spines; lamina large, oblong, tripinnate; pinnae 17-20 pairs, alternate, longest one to 60 cm long, the basal one reduced; rachis short-spiny; pinnules 18-20 pairs, sessile or nearly so, lanceolate, to 10 cm long and 2.5 cm wide, divided almost to the costa; segments more or less falcate, toothed.

叶螺旋状排列,聚生於茎端;叶柄棕色,具锐刺;叶片大,长矩圆形,三回羽状深裂;羽片17-20对,互生,最大的长达60厘米,基部一对缩短,羽轴有短刺;小羽片18-20对,无柄或近於无柄,披针形,长达10厘米,宽2.5厘米,深裂几达中脉;末回裂片多少镰状,有齿。

Leaf blade obtuse to subcordate at base, abaxially glabrous, secondary veins 3 or 4 pairs; twigs terete; rachis and pedicels glabrous.

叶片钝的到近心形在基部,背面无毛,次脉3或4 对;小枝圆柱状轴和花梗无毛。 21 Gaultheria leucocarpa 白果白珠

Leaves basal and cauline; leaf sheaths glabrous or pilose; leaf blades linear, flat, 18–75 × 0.3–2(–4) cm, glabrous, glaucous or pilose, midrib prominent, margins scabrid or smooth, base tapering or broad and rounded, apex acuminate; ligule 0.5–4 mm, ciliolate.

叶基生和茎生叶鞘无毛或具柔毛;叶片线形,平, 18-75 * 0.3-2(-4)厘米,无毛,有白霜或具柔毛,突出的中脉,边缘粗糙或平滑,宽和圆形的基部渐狭或,先端渐尖;叶舌0.5-4毫米,具短缘毛。

Basal leaves numerous, fasciculate, rosulate; stipules free, brown, linear-lanceolate, margin fimbriate-serrate; petiole 1.5-4 cm, very narrowly winged in upper part; blade ovate or triangular-ovate, 1.3-3.5 × 1-3 cm, both surfaces glabrous to subglabrous or appressed puberulous, with dense brown glandular dots, veins conspicuously raised abaxially, base shallowly cordate or cuneate, margin serrulate, apex ± acute.

基生叶多数,束状,莲座状;托叶离生,棕色,线状披针形,边缘流苏状使成锯齿波;叶柄1.5-4厘米,具狭翅在上半部分;叶片卵形的或三角状心形, 1.3-3.5 * 1-3 厘米,两面无毛到近无毛的或者贴伏被微柔毛,具密的棕色腺点,脉明显在背面突起,基部浅心形或楔形,边缘细锯齿,先端多少锐尖。

Leaves alternate; petiole 1.5-2.5 mm, densely white tomentose; leaf blade adaxially light green, elliptic, lanceolate, or ovate-oblong, small, narrow, 1-2 cm × 5-8 mm, stiffly papery, abaxially densely and persistently gray-white tomentose, adaxially glabrous or sparsely white pubescent, lateral veins 4-6 pairs, midvein prominent abaxially, inconspicuous adaxially, base obtuse, margin serrulate, apex obtuse or acute, rarely rounded, often long mucronulate. Flowers yellow-green, sessile, gray-white pubescent, usually in terminal and axillary spicate panicles; rachis 1-2 cm, densely gray-white pubescent.

叶互生 叶柄1.5-2.5毫米,密被白色;叶片正面淡绿,椭圆形,披针形,或卵状长圆形的,小,狭窄,1-2厘米*5-8毫米,硬纸质,浓密背面和持续灰白色被绒毛,正面无毛或者稀少白色短柔毛,侧脉4-6对,花黄色绿色,无梗,灰白色短柔毛,通常在顶生和腋生穗状圆锥花序里;轴1-2厘米,浓密灰白色短柔毛。

Basal leaves 2-6, long petiolate; stipules over 1/2 adnate to petioles, broadly lanceolate, membranous, margin sparsely denticulate and ciliate or entire, apex acuminate; petioles 3-9 cm at anthesis, usually green, sometimes purplish, glabrous, nitid, elongated at fruiting to more than 20 cm; leaf blade glabrous on both surfaces or pubescent along veins, 3-sect, segments shortly stipitate, lateral segments deeply 2-fid, central segment deeply 2- or 3-fid, terminal lobes highly variable in shape and size, ovate-lanceolate, lanceolate, oblong, or linear-lanceolate, margin irregularly dentate or shallowly divided, sometimes triparted to pinnatiparted or 3-lobed, apex obtuse or acute.

基生叶2-6,具长叶柄;托叶超过1/2的贴生至叶柄,宽披针形,膜,边缘疏生细齿和具缘毛或全缘,先端渐尖;叶柄3-9厘米在花期,通常绿色,有时略带紫色,无毛,有光泽的,在果期拉长到超过20厘米;叶片两面无毛沿脉具短柔毛,3全裂,裂片具短柄,侧裂片2深裂,中裂片2或3深裂,顶裂片形状和大小极易变,卵状披针形,披针形,长圆形,或线状披针形,边缘不规则牙齿或浅裂,有时3深裂到羽状深裂或3浅裂,先端钝或锐尖。

Petiole 3-5 cm, glabrous; leaf blade obovate-oblong, oblanceolate, or oblong, 9-15 × 3-8 cm, papery, green adaxially, yellowish green abaxially, glabrous on both surfaces, base cuneate, margin entire or shallowly repand, apex shortly acuminate to acute; lateral veins 5-7 pairs, flattened above, elevated below.

叶柄3-5厘米,无毛;叶片倒卵状长圆形,倒披针形,或者长圆形, 9-15 * 3-8 厘米,纸质,正面绿色,背面淡黄绿色,两面无毛,基部楔形,边缘全缘或浅波状,先端短渐尖到锐尖;侧脉5-7 对,上面扁平,在下面突起。

Petiole erect, 2.5-5 cm, glabrous; leaf blade abaxially pale green, with resinlike gland dots, adaxially deep green, cordate-ovate or triangular-ovate,(5-)10-25 ×(3.3-)5-13(-16.5) cm, palmately 5-veined, glabrous, base rounded or subtruncate, sometimes slightly cordate, margin entire, apex acuminate.

叶柄直立,2.5-5厘米,无毛;叶片背面浅的绿色,具腺体小圆点,正面深绿色,心形卵形或三角状心形的,( 5-)10-25 *(3.3-)5-13(-16.5)厘米,掌状5脉,无毛,基部圆形或近截形的,有时的稍心形的,边缘全缘,先端渐尖的。

Different from other two plants, there are red materials in upper epidermis of leaves of the A. mono living in Baicheng and Changchun. The red materials may relate to the secretion of salt. In A. mono living in Baicheng ,there exist palisade parenchyma with 2 layers cells.

白城地区的色木槭叶片主脉无花环状的韧皮纤维,白城和长春色木槭均有红色物质从叶片上表皮溢出,与另两种植物不同,这种物质可能与盐分的分泌有关,白城地区的色木槭叶的栅栏组织由两层细胞构成,而长春的色木槭则为一层栅栏组织。

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