- 更多网络例句与苞片相关的网络例句 [注:此内容来源于网络,仅供参考]
-
This species is one of perfect materials to examine the developmental mechanism of plant bract, to explore the developmental relationship between leaf and bract, as well as to study the role and essential function of bract on plant reproductive biology and ecology.
该物种是研究植物苞片发育的分子机理及探讨苞片与叶片发育的相互关系的理想材料,也是探讨苞片在植物生殖生物学及生殖生态学中作用和功能的理想材料。
-
Flowers in 2 rows per bract; flowers in proximal bracts female or bisexual; flowers in distal bracts male.
花生于2排在每苞片;花生于下部的苞片雌性或两性;花生于上部的苞片雄性。
-
Pedicel bearing a bract and bracteole toward either base or apex, pubescent, puberulent, or glabrous; bracteole similar to bract but smaller.
花梗向基部或先端生苞片和小苞片,短柔毛,被微柔毛,或无毛;小苞片类似苞片但是更小。
-
Flowers subsessile; pedicel absent to 1(--2) mm, pubescent; bract and bracteole borne on distal part of pedicel, linear-lanceolate, proximally pubescent; bract 4--8(--11) mm, shorter than or equaling flower (sometimes a few bracts at base of raceme to 2 × flower length), apex acute.
花近无柄;花梗无到1(-2)毫米,密被短短柔毛;苞片和小苞片生于花梗上部,线状披针形,下部的短柔毛;苞片4-8(-11)毫米,短于或等长花(有时苞片在基部的总状花序达2倍花长度,先端锐尖。
-
Flowers subsessile to distinctly pedicellate; pedicel 0.5--6(--10) mm, pubescent or puberulent; bract and bracteole usually borne at or near apex of pedicel; bract lanceolate to narrowly so, 3--12 mm, shorter than flower (sometimes a few bracts at base of raceme to 2 × flower length), glabrous, apex acute.
花有花梗近无柄的到明显;花梗0.5-6(-10)毫米,具短柔毛或微柔毛;苞片和小苞片通常着生在花梗的先端或近先端;苞片披针形到狭披针形,3-12毫米,短于花(有时几枚苞片在总状花序基部达2倍花长度),无毛,先端锐尖。
-
Secondly, according to the stem and leaf anatomy, leaf epidermis, pollen morphology and floral development, it is found that there are no close relations between Acorus and Typhales, especially in the aspect of floral development. In the course of floral development of A. calamus, neither bracteloe primordium nor common primordium occurs in the whole course. Early development of the flower is strongly unidirectional. Three shield carpels develop into a pistil. In Sparganium fallax, each female flower has a bracteole. The bracteole primordium and the floral primordium originate from a complex structure. A single saccate carpel develops into a pistil. In staminate flowers, petal and stamen primordia initiate spirally.
菖蒲属与香蒲目的茎叶解剖特征、叶表皮特征、花粉特征及花器官发生特点等亦存在着明显区别,特别是花器官发生特点差异尤为显著,如菖蒲属花器官发生过程中,没有苞片原基,也不存在任何形式的复合原基,花被与雄蕊原基均以单向性方式发生,雌蕊由3心皮发育而成,具有"盾状心皮"的特点等,黑三棱属则有苞片原基发生,且苞片原基与雌花原基起源于共同的复合结构,雄花的花被原基和雄蕊原基均以螺旋状方式发生,雌蕊由单心皮发育而成,未发现有2或3个心皮原基或其痕迹的现象,体现出"囊状心皮"的特点。
-
Inflorescences axillary; spikes terminal and axillary or only terminal, densely arranged into 4--11 spikelets; lateral spikes almost sessile; bracts longer than first bractlet, margin broadly membranous and wider than herbaceous part, apex rigidly and thickly cuspidate; each flower subtended by a bractlet; first bractlet similar to bracts but slightly shorter.
花序腋生只顶生的穗状花序顶生和腋生或,浓密排列为4-11小穗;侧的穗状花序几无梗;苞片长于第一个小苞片,边缘宽膜质和宽比草质深裂,刚硬和厚骤尖的先端;每花以一小苞片被包着;首先除了稍短小苞片类似苞片。
-
Bract and bracteoles or bract at calyx base forming epicalyx, persistent.
在花萼基部的苞片和小苞片或苞片形成副萼,宿存。
-
The artificial flower doctrine that with German botanist Engele is a delegate thinks the flower of angiosperm and gymnospermous ball flower agree completely, every stamen and carpel, be equivalent to a male flower that degrades extremely and female flower respectively, consequently tentative idea angiosperm is to come from child plant hemp is yellow kind yellow Ephedra Campylopoda of curved handle hemp, following plan institute are shown, in this tentative idea, the bud of male flower piece turn into perianth, the bud of female flower piece turn into carpel, the small bud of every male flower piece after disappearing, remain a stamen only, female flower small bud piece ovule is remained only after disappearing, ministry of foundations of move unripe Yu Zi.
以德国植物学家恩格勒为代表的假花学说认为被子植物的花和裸子植物的球花完全一致,每个雄蕊和心皮,分别相当于1个极端退化的雄花和雌花,因而设想被子植物是来自棵子植物麻黄类的弯柄麻黄Ephedra campylopoda,如下图所示,在这个设想里,雄花的苞片变为花被,雌花的苞片变为心皮,每个雄花的小苞片消失后,只剩下一个雄蕊,雌花小苞片消失后只剩下胚珠,着生于子房基部。
-
Inflorescence a terminal panicle, raceme, or spike, dense or lax, covered by 1--3 spatulate involucral bracts when immature; bracts open to base, rarely hooded, each subtending 1 flower or a cincinnus of 2 to many flowers; bracteoles open to base or tubular, rarely hooded, sometimes absent.
花序一顶生圆锥花序,总状花序,疏松的或穗状花序,紧密或疏松,未发育完全时被1-3匙形总苞片覆盖;苞片打开至基部,很少盔状,每苞片着生1花或蝎尾状聚伞花序的2到多数花;小苞片打开至基部或管状,很少盔状,有时无。
- 更多网络解释与苞片相关的网络解释 [注:此内容来源于网络,仅供参考]
-
bract:苞片 苞(葉)
brackish water swamp 半咸水沼泽,微咸水沼泽 微鹹水沼澤 Y | bract 苞片 苞(葉) Y | bract leaf 苞叶 苞葉 Y
-
bract leaf:苞片(苞叶)
brackish plankton 咸水浮游生物 | bract leaf 苞片(苞叶) | bractlet 小苞片
-
bracteole:小苞片
bracteal leaf 苞 | bracteole 小苞片 | bractlet 小苞片
-
bracteole:苞片 小苞片
bracteody /苞片化/ | bracteole /苞片/小苞片/ | bracteomania /苞窝/
-
bractlet, bracteole:小苞片
02.294 苞片 bract | 02.295 小苞片 bractlet, bracteole | 02.296 佛焰苞 spathe
-
bractlet, bracteole:小苞;小苞片
小苞;小苞片 bracteole; bractlet | 小苞;小苞片 bractlet; bracteole | 小苞片(菊科);穎狀苞(禾本科) chaff
-
bracteole; bractlet:小苞;小苞片
消失係數 elimination coefficient | 小苞;小苞片 bracteole; bractlet | 小苞;小苞片 bractlet; bracteole
-
bractlet:小苞片
bracteole 小苞片 | bractlet 小苞片 | bradycardia 心搏徐缓
-
bracteate:具苞(片)的
bracteal 苞片状 | bracteate 具苞(片)的 | bracteolate 具小苞片的
-
bracteolate:具小苞片的
bracteoid | 苞状的 | bracteolate | 具小苞片的 | bracteole | 小苞片