国产山小橘属(芸香科)植物花部解剖特征及其系统学意义

牟凤娟; 马士祝; 徐琼华; 张奠湘

doi:10.3724/SP.J.1142.2012.40327

国产山小橘属(芸香科)植物花部解剖特征及其系统学意义

1.
西南林业大学西南山地森林资源保育与利用省部共建教育部重点实验室, 昆明 650224
2. 云南省大理州林业科学研究所, 云南下关 671000
3. 云南省玉溪农业职业技术学院, 云南玉溪 653106
4. 中国科学院华南植物园, 广州 510650

基金项目: 国家自然科学基金面上项目"黄皮属及其近缘类群的系统学研究"(30970182)。

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通讯作者:
张奠湘, E-mail: dx-zhang@scbg.ac.cn

中图分类号: Q944; Q949.752.7
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- 收稿日期: 2012-02-06
- 修回日期: 2012-05-14
- 发布日期: 2012-08-29

Floral Morphology and Anatomy of Glycosmis (Rutaceae) in China and Their Systematic Implications

1.
Key Laboratory for Forest Resources Conservation and Use in the Southwest Mountains of China, Ministry of Education,Southwest Forestry University, Kunming 650224, China
2. Dali Institute of Forestry Science,Xiaguan, Yunnan 671000, China
3. Yuxi Agricultural Vocation-Technical College,Yuxi,Yunnan 653106, China
4. South China Botanical Garden,Chinese Academy of Sciences, Guangzhou 510650, China

摘要

摘要: 利用石蜡切片和显微解剖方法对芸香科山小橘属(Glycosmis)国产9个种类11份材料的花部特征进行解剖学研究。结果表明,国产山小橘属植物雄蕊花药顶端具有突尖附属体和油腺2种类型,大部分种类的花药背部具有1至数枚油腺,但山橘树(G.cochinchinensis)的花药具有稀疏长毛;雌蕊的子房柄按其增大程度分为近球形、增大垫状和伸长形3类,子房的形状有近球形和稍增大柱形,子房外壁有光滑、具圆形凸起腺点及具不规则瘤状凸起3种类型,子房室的数目有5室和4(或3)室2种类型,花柱形状分为圆柱状和渐狭柱状,柱头特征分为稍增粗和不明显两类;大部分种类花柱为宿存,仅锈毛山小橘(G.esquirolii)的花柱在果实发育时脱落。山小橘属的花部特征在种间具有较大的差异,可以作为属下类群划分的主要依据之一,具有重要的系统学意义。
- 山小橘属 /
- 花部解剖特征 /
- 芸香科 /
- 系统学意义
Abstract: The floral anatomical morphology of Glycosmis (Rutaceae) including nine species and eleven samples from China,was studied by using paraffin section and microdissection.Results showed that: the projected appendage and oil glands were found at the tip of the anther and there were one to a few oil glands on the back of the anther in many species,except one species (G.cochinchinensis) with sparse long hairs; the gynophore was divided into sub-sphaeroidal,cushion-like and elongated types based on the swollen degree;the shape of the ovary was sub-spheroidicity and slightly swollen cylindricity;the outer wall of the ovary was smooth,with salient oil glands or with irregular tubercles;the number of locule was four (three) or five;the shape of style was terete or attenuately columnar;characters of stigma were thicke-ned slightly or non-obvious;the style was persistent in most species,except G.esquirolii.It was concluded that the anatomical morphology of the flowers was characterized with high diversity between species in Glycosmis.Therefore,the floral morphology and anatomical features of Glycosmis could be used as evidence for inter- and intra-specific taxonomy and showed great systematic value.
- Glycosmis /
- Morphology of floral anatomy /
- Rutaceae /
- Systematical implication

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参考文献(48)

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国产山小橘属(芸香科)植物花部解剖特征及其系统学意义

通讯作者: 张奠湘, E-mail: dx-zhang@scbg.ac.cn

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Floral Morphology and Anatomy of Glycosmis (Rutaceae) in China and Their Systematic Implications

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通讯作者:
张奠湘, E-mail: dx-zhang@scbg.ac.cn