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perianth

美 ['perɪˌænθ]英 ['perɪænθ]

n.【植】花被；蒴苞；总苞
网络花被片；花被位置；肛门周围的

复数：perianths

perianth

perianth

英-汉英-英网络释义

perianth

n.

1.【植】花被;蒴苞;总苞

1

Morphology of the androecium , perianth (tepals), and the inflorescence has traditionally been used to circumscribe genera and tribes .

雄蕊群的形态学，花被（花被片），和花序通常用来划分属和族。

2

perianth lobes of female flowers usually connate into a tube , rarely strongly reduced , or absent, staminodes absent .

通常的雌花的花被裂片合生成筒，很少强烈降低，或无，退化雄蕊缺席。

3

Fruit a drupaceous capsule , ellipsoid-ovoid, puberulent, 1-seeded, perianth persistent, style persistent and developing into a beak .

果具核果蒴果，椭圆形卵球形，被微柔毛，1 种子，宿存的花被，花柱宿存的和发展成为一喙。

4

This species is variable in the shape , size, and indumentum of the leaves and in the length of the neck of the female perianth tube .

本种在叶的形状，尺寸和毛被以及在雌花花被筒部的颈的长度方面是易变的。

6

Perianth with a more developed transverse wing ; seed obscurely pitted .

花被有一个更发育的的横向的翅；种子不明显具洼点。

7

Utricles ovoid, compressed , membranous, indehiscent or irregularly dehiscent (bursting ), falling off with perianth .

胞果卵球形，压扁的，膜质，不裂或不规则开裂（爆裂），与花被一同脱落。

8

Stigmas capitate . Achenes exceeding persistent perianth , brown , shiny, broadly ellipsoid, trigonous.

柱头头状瘦果超过宿存花被，棕色，发亮，宽椭圆形，三棱。

10

perianth segments free nearly to base , spreading during anthesis and afterward spirally contorted, inner segments wider than outer .

花被片近基部离生，在花期平展和后来螺旋旋转状，内部的裂片比外部的宽。

11

Flowers solitary in axils of upper leaves , sessile , minute, bisexual or unisexual, Perianth reduced to an entire rim on top of ovary .

花单生在上面叶的腋，无柄，细小，两性或者单性，花被在子房之上退化成全缘的环。

13

Achene drupaceous , straight , adnate to thinly fleshy perianth, enclosed as base or almost wholly by discoid or cup like fleshy receptacle .

瘦果具核果，直的，贴生于薄肉质花被，内藏于基部或几乎完全藏于盘状或杯状肉质花托。

17

Filaments subequal, slightly shorter than perianth segments, connate at base and adnate to perianth segments.

花丝近等长，稍短于花被片，在基部合生和贴生于花被片。

18

Filaments subulate, slightly shorter than perianth segments , connate at base and adnate to perianth segments.

花丝钻形，稍短于花被片，在基部合生和贴生于花被片。

19

Perianth segments usually oblique , 3-winged, abaxially with a longitudinal keel throughout length , apex cucullate.

花被片通常斜的，具 3 翅，背面具一纵向的脊在整个长度，先端兜状。

21

Plants with sessile (rarely subsessile) glands ; perianth segments not abaxially keeled or with a weak keel , erect in fruit (N Xinjiang ).

植株具无梗（很少近无柄）腺体；花被片背面不龙骨状或具弱的龙骨，直立在果期（新疆北部）

22

Achene light brownish , broadly ovoid , slightly compressed, ca . 1 mm, conspicuously verrucose, invested by persistent perianth lobes.

瘦果浅带褐色的，宽卵形，稍压扁，约 1 毫米，显著多疣，被宿存花被裂片包围。

23

Stem , branches , and petiole pubescent, rarely glabrescent; male perianth oblong, teeth acute at apex .

茎，分枝和叶柄短柔毛，很少脱落无毛；雄花花被长圆形，齿锐尖的在先端。

25

Capsule chestnut brown , shiny , trigonous ovoid, longer than perianth, apex mucronate.

蒴果栗棕色，发亮，三棱卵球形，长于花被，先端短尖。

26

Fruit usually a dry achene, sometimes a fleshy drupe , often enclosed by the persistent perianth .

果通常为干燥瘦果，有时肉质核果，通常被宿存花被包围。

27

Achene lustrous , easily detached from perianth ; stigma usually deciduous .

瘦果有光泽，容易从花被分开；柱头通常落叶。

28

Capsule dark brown to blackish brown, broadly ellipsoid to ovoid ; inner perianth segments ovate to elliptic .

蒴果暗褐色的到微黑棕色，宽椭圆形到卵球形；内轮花被片卵形的到椭圆形。

29

Bracts and bracteoles membranous , persistent or bracteoles falling off with perianth in fruit .

苞片和小苞片膜质，宿存或者小苞片与花被脱落在果期。

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