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簇生

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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.

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 tufted; stipes 3-10 cm long, glabrous, narrowly winged near apex; lamina oblong-ovate to triangular, generally 10-12 cm long, bi- or tripinnate; pinnae 3-5 pairs, oblong-ovate, sessile; rachis narrowly winged; pinnules pinnately dissected, segments linear.

簇生;叶柄长3-10毫米,无毛,近顶端有狭翅;叶片长卵圆形至三角形,通常长10-12厘米,二回或三回羽状分裂;羽片3-5对,互生或近对生,长卵圆形,无柄,羽轴有狭翅;小羽片羽状细裂;末回裂片细长,线形。

Leaves alternate, solitary or in fascicles, petiolate to subsessile; leaf blade flat, linear-lanceolate to ovate, base cuneate, rounded, or subcordate, margin entire, apex obtuse or acute.

叶互生,单生或簇生,具叶柄到近无柄;叶片平,线状披针形的到卵形,基部楔形,圆形,或近心形,边缘全缘,先端钝或锐尖。

Leaves alternate, sometimes subopposite or a few fascicled on short shoots; petiole 2-4 mm; leaf blade ovate, or elliptic to lanceolate, 3-5 × 1.5-2 cm, leathery, both surfaces glabrous, lateral veins 3 or 4 pairs, base cuneate, slightly decurrent, apex obtuse.

叶互生,有时近对生或一很少簇生在短茎上;叶柄2-4毫米;叶片卵形,或椭圆形到披针形, 3-5 * 1.5-2 厘米,革质,两面无毛,侧脉3或4 对,基部楔形,稍下延,先端钝。

Inflorescences terminal, umbellate or corymbose, rarely shortly paniculate, many flowered, sometimes flowers 2- or 3-clustered or solitary.

花序顶生,伞形或,很少短圆锥状,多花的,有时花2或3簇生或单生。

Stem leaves oblanceolate or linear-oblanceolate; inflorescence seemingly an axillary umbellate cluster; seeds smooth.

茎生叶倒披针形倒披针形或线形;花序好象的一腋生簇生伞形花序;种子平滑 4 M 。

Leaves opposite, rarely fascicled or alternate, simple or compound; leaf or leaflet blades palmately veined.

叶对生,很少簇生或互生,单的或复合;叶或小叶叶片掌状脉。

Male inflorescence pendulous, solitary in leaf axils toward base of branchlets or in paniculate clusters on lateral or subterminal shoots; flower solitary and scattered on rachis; perianth calyciform, 4-7-lobed or more lobed; stamens 4-7 or fewer, filaments slender; staminodes small.

托叶早落。雄花序下垂,叶腋单生向基部的小枝圆锥状簇生或在侧或上嫩枝;花单生和在轴上星散;花被calyciform,4-7 有叶或者更有叶;雄蕊4-7或者更少,花丝纤细;退化雄蕊小。

Leaves evergreen, deciduous or semideciduous, alternate, sometimes clustered at stem apex; margin entire, very rarely crenulate, abaxial indumentum sometimes with a pellicle (a thin skinlike layer on the surface).

灌木或乔木陆生的或附生,常绿的叶,落叶或半落叶,互生,有时在茎先端的簇生;边缘全缘,极少具细圆齿,背面毛被有时具一表膜。

Inflorescences axillary, small, pedunculate, densely capitate clusters of unisexual flowers; solitary glomerules or pairs of dichotomously branched cymes; bracts small.

花序腋生,小,有花序梗,密集头状簇生的单性花;单生团伞花序或对二歧分枝聚伞花序;苞片小。

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