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Pistillode 1.5-2 mm in male flowers. Fruit globose, 8-10 mm wide; stipes 5-9 mm.

在雄花内退化雌蕊1.5-2毫米;果球状,8-10毫米宽;柄5-9毫米。

7 Mm. Pistillodes small, subulate.

退化雌蕊小,钻形。

SRK gene and SP 11/SCR gene are thought to be two key molecules in SI The protein of SP 11/SCR encoding specifically expressed in the anther tapetum and in pollen.

SRK基因是雌蕊柱头中自交不亲和反应的专一决定因子,编码SP11/SCR基因的蛋白在花药壁和花粉中特异表达。

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.

雌雄同株;雄花有时单生,有时在一聚伞圆锥花序内5-7厘米,直径2-3厘米;花梗0.8-1.5厘米;大的萼片2,小的2;花瓣橙,倒卵形,长为萼片的1-5 倍;雄蕊束簇柄2-3毫米,每束簇具50花药;花药聚生为头状花序,2室,室纵向开裂;退化雌蕊柱状;柱头清楚的盾形,4裂。

Scape usually unbranched; involucral bracts 3 or more; pistils and achenes glabrous or pubescent.

花葶通常不分枝;总苞片3或更多;雌蕊和瘦果无毛或短柔毛。

Flowers small, unisexual. Male flowers: tepals 4; stamens 4; central pistillode present.

花小,单性。雄花花被片4;雄蕊4;中心的退化雌蕊宿存。

Pistil ca. 1.5-2 cm; corolla white with purple spots, tube 3-3.8 cm, abaxial lip ca. 7 mm; petiole 2-6 cm; leaf blade margin weakly serrate to nearly entire, with vermiform sclereids surrounding vascular bundles; involucre 2-2.5 cm in diam.

约的雌蕊1.5-2厘米;花冠白色具紫色斑点,筒部厘米,背面唇约7毫米;叶柄2-6厘米;叶片边缘身体虚弱的有锯齿到近全缘,具蠕虫状的sclereids 围绕维管束;总苞2-2.5厘米直径 3 Hemiboea bicornuta 台湾半蒴苣苔

Petals [3 or]4 or 5[-8], fascicles each with many to few stamens with filaments almost free to completely united, or ± completely connate , with anthers 1, 2, 4 or many-celled, basifixed or variously united; fasciclodes 4 or 5, antisepalous and free or ± united or absent; pistillode present or absent.

花瓣 [3或者 ]4或5 [-8],每束簇具很多到少数花丝几乎离生到完全合生的雄蕊,或花丝多少完全合生的,具花药1,2,4或很多,基着或各种地合生;下位腺体4或者5,对萼和离生或者多少合生或无;退化雌蕊宿存或无。

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。

Microscopic observation on anther development process of cytoplasmic male sterile line"1815A"showed that its anther development was inhibited at the stage of archesporial cell differentiation.

以1815A不育系对应的保持系1815B作对照,对不育系进行细胞学观察,结果表明:随着花蕾的发育,败育的雄蕊一直处于孢原细胞时期,不能形成花粉囊并产生花粉母细胞,但雌蕊和维管束组织发育正常。

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