雄蕊状的

Leaf blade elliptic, ovate-elliptic, or elliptic-lanceolate, base rounded or obtuse, rarely subcordate; capsule with yellow to brown stellate hairs; androgynophore 1-2 cm

叶片椭圆形，卵状椭圆形，或椭圆形披针形，基部圆形或钝，很少近心形；蒴果具黄的到棕色星状毛；雌雄蕊柄1-2厘米 15

Stamens erect, inserted at base of perianth segments; filaments free or basally ± connate; anthers basifixed, apex often adaxially appendaged; connective extended into a perianthlike, linear-lanceolate, long appendage.

雄蕊直立，着生的在花被片基部；花丝离生或基部多少合生；花药基着，先端通常附属物；药隔延长至花被状，线状披针形，长附属物。

The reproductive development process of birch was described as follows: Male inflorescences extended from apical bud in early June. In later June, stamen primodium was differentiated in the bract of male inflorescence and the differentiation of bract was generated in female inflorescence. During July, anther layers and archesporial cell were differentiated in anther, then archesporial cell developed into mother microspore cell. Pistil primodium came into being at the same time. In early part of August the meiosis of mother microspore cell started. In later August, mono-nucleus microspore was formed. After September, both male inflorescence and female inflorescence were dormant.

白桦的生殖生长发育过程如下：6月初，雄花序从顶芽中生长出来。6月中下旬，雄花序苞片上分化出雄蕊原基，雌花序分化出苞片。7月，雄花花药分化出花药壁和孢原细胞，孢原细胞演化为小孢子母细胞，雌花序苞腋处分化出雌蕊原基；8月中上旬，小孢子母细胞减数分裂，8月下旬形成单核小孢子；9月后雄花序以单核小孢子状念越冬，雌花序以雌蕊原基状念越冬。

Female flowers: perianth lobes (3 or)4(or 5), often unequal, often corniculate below apex; staminodes small, scale-like, inflexed.

雌花： 花被裂片(3或者)4(或者5)，在顶下面经常不相等，经常具小角状突起；小的退化雄蕊，鳞片状，内折。

Pedicels scaly; calyx large,(2–)3–8 mm, deeply 5-lobed, scaly, margin sometimes ciliate; corolla tubular-campanulate to funnel-campanulate, pink, white, or yellow; outer surface usually scaly, sometimes glabrous; stamens 10, declinate; ovary 5-locular; style straight, glabrous or scaly at base.

花梗有鳞；大的花萼，(2-)3-8毫米，深深5浅裂，有鳞，有时具缘毛的边缘；花冠管状钟状到漏斗状钟状，粉红色，白色，或黄色；外表面通常有鳞，有时无毛；雄蕊10，下倾；子房5室；花柱直，无毛的或有鳞的在基部。

Fertile stamens 3, in a few flowers only anterior 2 fertile, posterior 1 depauperate or absent, often anterior 2 also depauperate; filaments densely white lanate; staminodes 3; antherodes 3-sect. Capsule ovoid, 1.5--1.7 cm, acute at apex.

能育雄蕊3，在数花内只前面的2枚能育，后面1发育不全或无，通常前面2也发育不全；花丝浓密的白色绵状毛；退化雄蕊3；退化花药 3全裂；蒴果卵球形，1.5-1.7厘米，锐尖的在先端。

Flowers in cymules, pedicellate; perianth campanulate, cupular, or saucer-shaped, lobes connate at base; stamens 6, inserted at base of perianth lobes or in throat of tube, anthers dorsifixed, introrse.

花生于小聚伞花序，有花梗；花被钟状，杯状或者茶托状，裂片在基部合生；雄蕊6，着生的在花被基部裂片或在筒部的喉，花药背着，内向。

Flowers yellowish to greenish, rarely brightly colored, small, bisexual or unisexual, rarely polygamous,(4 or)5-merous, hypogynous to epigynous, in mostly axillary, sessile or pedunculate cymes, or reduced to few in fascicles. Calyx tube patelliform or hemispherical to tubular, sometimes absent, at rim with calyx, corolla, and stamens; sepals 4 or 5, valvate in bud, triangular, erect or ± recurved during anthesis, adaxially often distinctly keeled, alternate with petals.

对带绿色淡黄的花，很少明亮染色，单性，很少杂性的小，两性或，(4或)5瓣，萼筒小盘状或者半球形到管状，有时无，在凸缘有花萼，花冠和雄蕊；萼片4或5，芽期镊合状，三角形，直立或者在花期弯曲，正面通常显著凸起，与花瓣互生。

A columnlike structure, especially one formed by the union of a stamen and the style in an orchid flower, or one formed by the united staminal filaments in flowers such as those of the hibiscus or mallow.

蕊柱一种柱形结构，尤指由兰花中雄蕊和雌蕊组成的结构，或指由木楼或欧锦葵属雄蕊联合构成的柱状结构

Botany A columnlike structure, especially one formed by the union of a stamen and the style in an orchid flower, or one formed by the united staminal filaments in flowers such as those of the hibiscus or mallow.

蕊柱：一种柱形结构，尤指由兰花中雄蕊和雌蕊组成的结构，或指由木楼或欧锦葵属雄蕊联合构成的柱状结构

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。