雌蕊的

Nutlets 4, horizontally rotate spreading from gynobase, dorsiventrally compressed, ovoid, marginal rib with triangular glochids, margin with smaller glochids; large prickles confluent into a broad wing; attachment scar apical.

小坚果4，水平旋转从雌蕊基传播，背面压缩，卵圆形，边缘的肋骨用三角形的钩毛，边用更小的钩毛；大的皮刺汇合的成为一宽的翅；附件痕顶端。

The results indicated that along with the increase of chilling requirement of varieties, each differentiation stage for different varieties was delayed, the sepal differentiation stage was extended, the pistil differentiation stage was shorten. The time difference of petal and stamen differentiation stages was little among different varieties.

结果表明：随着品种需冷量的增加，不同品种花芽分化的各个阶段开始的时间有所推迟，萼片分化期所用的时间逐渐延长，雌蕊分化期所用的时间逐渐缩短，而花瓣和雄蕊分化期所用的时间差异不大。

Stamens inserted at distal narrow portion of corolla tube; filaments arcuate, long, thickened distally; anthers sagittate, usually exserted, connivent, adherent to pistil head, cells spurred at base; disc ringlike, shallowly 5-lobed.

在上部着生的雄蕊花冠筒的狭窄的部分；花丝弧曲，长，上部加厚；通常，箭头形的花药，对雌蕊头状花序，室来说靠合，附着基部具距；环形的花盘，浅5浅裂。

Rhizome long and thin or shortly nodulose; leaf blade ternate, petiole narrow; involucral bracts petiolate; pistils and achenes with distinct style and small, usually linear stigma.

短的根状茎长和薄的或具小节；三出的叶片，狭窄的叶柄；总苞片具叶柄；雌蕊和瘦果具离生的花柱和小，通常线形柱头。

Inflorescence spikelike, cylindrical, composed of spiny or bristly deciduous burrs arranged along an angular, often sinuous rachis; burrs sessile or with an obconical basal stipe, each composed of 1 or more sessile spikelets surrounded by an involucre of spines and bristles; bristles flexuous or more often spinous,± flattened, grooved on the outer face, united below, the degree of union varying from a small basal disk to a deep cupule, inner spines or bristles often ciliate around spikelets. Spikelets lanceolate, acute; glumes unequal, shorter than spikelet, lower sometimes suppressed; lower floret membranous, staminate or neuter; upper floret firmer, protogynous.

花序穗状，圆筒状，由落叶的毛刺沿着一具角安排的具刺的或具刚毛，通常波状的轴组成；毛刺无梗或具基部的倒锥状柄，每一个由1无梗或更多组成以总苞的刺和刚毛包围；或更多的刚毛曲折通常spinous，多少扁平，在外面上具凹槽，下面的合生，协会的度从一小的基部的花盘变化到一深的壳斗，小穗披针形，锐尖；不等长的颖片，短于小穗，降低有时压抑；更低的小花膜质，雄蕊花的或中性；坚定的上面小花，雌蕊先熟。

Spikelets protogynous, strongly laterally compressed, floret 1, falling entire from pedicel; rachilla extension absent; glumes equal,± equaling and enclosing floret, broadly lanceolate to oblong, membranous to thinly leathery, prominently 3-veined, strongly keeled, keel usually ciliate, infrequently winged, lower margins almost free or connate for up to half their length, apex obtuse, acute or shortly awned; lemma broadly lanceolate to ovate, usually thinly membranous, keeled, obscurely 5-veined, smooth, glabrous, lower margins often connate, awned from lower back, apex truncate to acute; awn straight when short or geniculate when longer, column smooth, usually twisted at maturity, bristle scabrid; palea absent or very small.

雌蕊先熟的小穗，强烈侧面压扁，小花1，从花梗那里变为全缘；小穗轴扩展缺席；颖片等长，多少等长和包围小花，宽披针形的到长圆形，膜质到薄革质，显著3脉，强烈龙骨状，外稃宽披针形的到卵形，直的芒什么时候短或者膝曲长时间，顺利的柱子，通常成熟时扭曲，粗糙的硬毛；内稃缺席或者很小。

With the aid of aniline blue staining, pollen tube growth in pistil tissue was observed in Arabidopsis thaliana, and the growth speed of pollen tubes in style and ovary were calculated, the results showed that the pollen tube grew faster as time goes on.

以模式植物拟南芥为供试材料，利用脱色苯胺蓝染色的方法观察了拟南芥花粉管在雌蕊组织中的生长情况，获得了花粉管从萌发到进入花柱和子房不同时期的生长速率，结果表明，花粉管在不同时期的生长速率呈现出逐步加快的趋势。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。