雌蕊叶
- 与 雌蕊叶 相关的网络例句 [注:此内容来源于网络,仅供参考]
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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。
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A simple pistil formed from one modified leaf, or that part of a compound pitil formed from one modified leaf; megasporophyll.
心皮 Carpel 组成单雌蕊或复合雌蕊的变态叶;大孢子叶。
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Pistillate or bisexual flower 1, inserted at top of head; perianth segments small, unequal in size; ovary inferior, connected to receptacle, 6-10-loculed, ovule 1 per locule; style short, stout, 6-10-lobed; stigmas inflated.
雌蕊的或两性的花1,头状花序的着生的在顶端;小的花被片,大小不等;子房下位,连接花托,室,胚珠1每室;花柱短,坚固,有叶6-10;柱头膨大。
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With American botanist cypress apply reach Halier, the really beautiful doctrine that British botanist breaths out Qin Song to be a delegate thinks the flower of angiosperm is come by evolution of ball of leaf of primitive gymnospermous bisexual spore, consequently tentative idea angiosperm is the Benneisu that in coming from gymnosperm, eradicates already iron eye, draft Su Tie especially , the bud on ball of its spore leaf piece evolve for perianth, sporule leaf evolves for stamen, big spore leaf evolves for pistil , axis of ball of its spore leaf shortens for rachis.
以美国植物学家柏施及哈利尔,英国植物学家哈钦松为代表的真花学说认为被子植物的花是由原始裸子植物两性孢子叶球演化而来,因而设想被子植物是来自裸子植物中早已灭绝的本内苏铁目,非凡是拟苏铁,其孢子叶球上的苞片演变为花被,小孢子叶演变为雄蕊,大孢子叶演变为雌蕊,其孢子叶球轴则缩短为花轴。
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Ovaries 2, distinct; ovules 2 per locule. Style filiform; pistil head thickened, with a short basal collar and apiculate apex.
子房2,离生;每室2胚株花柱丝状雌蕊头状花序加厚,具一短基部叶颈和具细尖先端。
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Sepal apex not aristate; pistil 2-carpeled; style apex 2-fid; leaves oblong, elliptic, or subcordate; herbs perennial
萼片先端不具芒;雌蕊2心皮;花柱先端2裂;叶长圆形,椭圆形,或近心形;多年生草本 2 Herniaria 治疝草属
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Male flowers: pedicels long and slender; sepals 4-7, imbricate, margins entire or serrulate; petals absent; disk of 4-7 segments, these sometimes connivent or fused; stamens 4-7, inserted at base of disk, longer than sepals; filaments free; anthers 2-locular, erect, extrorse, longitudinally dehiscent; pistillode small, 2- or 3-lobed.
雄花:花梗长和纤细;萼片4-7,覆瓦状,边缘全缘或有细锯齿;花瓣无;花盘4-7裂,有时靠合或愈合;雄蕊4-7,着生于花盘基部,长于萼片;花丝离生花药2室,直立,外向,纵向开裂;退化雌蕊小,有叶2或3。
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Leaves digitately 3-foliolate (occasional leaves 1- or 2-foliolate); functional gynoecium 4-7-loculed, syncarpous; fruit a 4-7-loculed drupaceous berry.
掌状的叶具3小叶(偶然的叶具小叶1或2);功能的雌蕊群4-7室,合心皮;果一4-7室核果状浆果。 9 Toddalia 飞龙掌血属
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Umbrella form inflorescence normally 2~4 bunch gives birth to short branch of Yu Xie armpit, short branch grows 1~2 millimeter; Inflorescence total stalk grows 5~10 millimeter, by short fluff; Bud piece 4, wide egg form, have 5~6 arteries and veins, outside a few without wool, inside face by white short fluff; Inflorescence of each umbrella form has beautiful 4~6, the leaf is opened or open at the same time with the leaf first; Peduncular grow about 1.5 millimeter, close by white fluff; Perianth piece 6, elliptic, two sides by short fluff; In male flower can Yo is staminal 9, filament has grey yellow fluff, form of heart of shape of aegis of body of gland of ministry of the 3rd round of stamen radical, do not have a handle nearly, degrade pistil is not had; Stamen degrades in female flower 9, staff state, by grey yellow fluff, ovarian crock form, style is dumpy, post head shape, shallow crack.
伞形花序通常2~4个簇生于叶腋短枝上,短枝长1~2毫米;花序总梗长5~10毫米,被短柔毛;苞片4,宽卵形,有5~6条脉,外面几无毛,内面被白色短柔毛;每一伞形花序有花4~6朵,先叶开放或与叶同时开放;花梗长约1.5毫米,密被白色柔毛;花被片6,椭圆形,两面被短柔毛;雄花中能育雄蕊9,花丝有灰黄色柔毛,第三轮雄蕊基部腺体盾状心形,近无柄,退化雌蕊无;雌花中退化雄蕊9,棍棒状,被灰黄色柔毛,子房壶形,花柱粗短,柱头头状,具浅裂。
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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。
- 推荐网络例句
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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.
Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。
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I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.
我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。
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The shamrock is the symbol of Ireland and of St.
三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。