Stamens 5, usually inserted at base of corolla tube and adhering to stigma head to form gynostegium; filaments usually connate to form a tube enclosing ovaries; anthers 4-celled (Periplocoideae and Secamonoideae) or 2-celled, often with a membranous apical appendage; pollen tetrads contained loosely on a spatulate translator with a basal corpusculum, or pollen united into waxy pollinia, each attached through a caudicle to the retinaculum between adjacent anthers to form a pollinarium, pollinia 2 or 4 per pollinarium.

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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.

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Ovary 1-loculed; ovules numerous. Gynophore long.

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Homogamous spikelets arising at slightly different levels, one pair subsessile, barren, the other pair staminate, 12–15 mm, narrowly lanceolate, minutely puberulous.

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Its main features were: the flowering branch 70~170 cm; the inflorescence is racemes or simple panicle; the axis of inflorescence is thick, and the node is distict; there are 4~5 florets in a spikelet, and the spikelet is non-stem; small rachis internodes glabrous, and the pikelet like a stick; there are 2 membrane glume; the lemma is longer or equal to the palea; there are 2 squamas, and 6 stamens; its ovarium like ovatum; there are 3 brushy tigmas; did not see the caryopsis; flowering February-March.

摘要《中國(guó)植物志》第九卷第一分冊(cè)及其它的相關(guān)文獻(xiàn)均無(wú)關(guān)于竹亞科簕竹屬吊羅坭竹花的描述或記錄，本文作者采集制作了該竹子繁殖器官標(biāo)本国内精品午夜理论，并分別用中文和拉丁文對(duì)其進(jìn)行了描述九九国产精品色婷婷，其主要特征：花枝長(zhǎng)70~170 cm；花序?yàn)榭偁罨ㄐ蚧蚝?jiǎn)單的圓錐花序毛片激情片免费看；花序軸粗好深好爽一区二区，節(jié)明顯；小穗含4~5朵小花欧美午夜艳；小穗無(wú)柄五月丁香综合在线视频；小穗軸節(jié)間無(wú)毛国产午夜福利在线播放92，呈棒狀亚洲三级片视频；穎2，膜質(zhì)无码一级毛片免费；外稃長(zhǎng)或等于內(nèi)稃一区二区强奸；鱗被2；雄蕊697干视频；子房卵形欧美一级俄罗斯a片；柱頭3，呈毛刷狀欧美色图亚洲；穎果未見(jiàn)综合sese。

Plant monoecious. Male flowers sometimes solitary, sometimes in a thyrse 5-7 cm, 2-3 cm in diam.; pedicels 0.8-1.5 cm; sepals 2 large, 2 small; petals orange, obovate, 1-5 × as long as sepals; stamen fascicles stalk 2-3 mm, each fascicle with 50 anthers; anthers aggregated into a head, 2-celled, cells longitudinally dehiscent; pistillode columnar; stigma distinctly peltate, 4-lobed.

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The floral morphogenesis of Coptis was observed under scanning electron microscopy. The initiation of all floral organs of the genus is spiral, the petal primordia are slightly retarded, the developmental sequence of the stamens is centripetal,the carpel primordia are conduplicate (i.e., horse-shoe shaped), the ovaries are half closed and the ovary stalk is formed in the developmental process.

本文運(yùn)用掃錨電子顯微鏡觀(guān)察了黃連屬植物花的形態(tài)發(fā)生和發(fā)育過(guò)程免费视频在线观看4444，結(jié)果表明，該屬植物所有的花部器官均為螺旋狀發(fā)生狠狠看香港澳门黄色片视频，雄蕊為向心式發(fā)育日韩精品人妻系列视频在线，花瓣原基有微弱的延遲發(fā)育，心皮原基為對(duì)折型A级免费黄片，子房為半封閉類(lèi)型亚洲日韩精品久久久久，子房柄是在發(fā)育過(guò)程中形成的。

Female flowers subsessile, ca. 0.5 mm; perianth lobes connate at base, subequal, abaxial lobe larger, subapically corniculate; staminodes 3, conspicuous, scale-like, rhombic-oblong.

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Stamens 5-10 or numerous; filaments generally free and persistent, or anthers sessile; anthers basifixed, longitudinally dehiscent or poricidal; staminodes present or not, sometimes persistent, awl-shaped, spatulate, or petaloid, sometimes connected into a tube.

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Stamen fascicles ca. 1 cm, with 20-30 stamens; filament ca. as long as stalk; connectives with glands or not.

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