裂瓜属的研究

中国科学院大学学报

裂瓜属的研究

路安民, 张志耘

（中国科学院植物研究所）

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1985-04-18 发布日期:1985-04-18
通讯作者: 路安民

Studies on the Genus Schizopepon Maxim. (Cucurbitaceae)

Lu An-Ming, Zhang Zhi-Yun

(Institute of Botany, Academia Sinica, Beijing)

Received:1900-01-01 Revised:1900-01-01 Online:1985-04-18 Published:1985-04-18
Contact: Lu An-Ming

摘要/Abstract

关键词: 裂瓜属, 系统, 分类, 花粉, 数量分类, 分布

Abstract:

The classical and numerical taxonomy, palynology and the geographical dis-

tribution of the Genus Schizopepon are dealt with in the present paper. Having comme-

nted on various opinions regarding the systematic position of the genus, the present au-

thors consider that C. Jeffrey’s treatment of Schizopepon as a new and monogeneric tri-

be, Schizopeponeae, should be supported.

The gross morphological characters in the genus are assessed from the taxonomic

point of view. Some characters, such as stamens with an elongated connective or not,

different insertions of ovules and various forms of ovaries and fruits, may be used for

distinguishing subgenera.

The pollen grains of all the species were observed under light microscope (LM) and

scanning electron microscope (SEM). The results show that a strong differentiation

has taken place in the pollen of the genus, and in consequence it may be regarded as an

important basis for dividing subgenera and species. Especially it should be pointed out

that degrees of development of colpi and positions of ora are positively correlated with

the external characters used for distinguishing subgenera.

According to the morphological and palynological characters, the genus Schizopepon

may be divided into three subgenera and eight species: 1. Subgenus Schizopepon: 5 spe-

cies, S. bryoniaefolius Maxim., S. monoicus A. M. Lu et Z. Y. Zhang, S. dioicus Cogn.,

S. longipes Gagnep. and S. macranthus Hand.-Mazz.; 2. Subgenus Rhynchocarpos A. M.

Lu et Z. Y. Zhang: 1 species, S. bomiensis A. M. Lu et Z. Y. Zhang; 3. Subgenus Neoschi-

zopepon A. M. Lu et Z. Y. Zhang: 2 species, S. bicirrhosus (C. B. Clarke) C. Jeffrey

and S. xizangensis A. M. Lu et Z. Y. Zhang.

The 8 OTU’s including all the species of this genus and 31 characters, of which 16 are morphological characters and 15 palynological characters, were used in the numerical taxonomic treatment. After standardization of characters, the correlation and distance matrices were computed. The correlation matrices are made to test the various clustering methods. At last, the UPGMA clustering method was selected and its result

is shown in the form of phenogram. The result of numerical analysis is similar to that of the classical classification.

Schizopepon Maxim. is a genus of East Asia-Himalayan distribution. China has all 8 species and 2 varieties, of which 6 species are endemic. Based on the statistics of spedies number, the distribution centre of the genus is considered to be in the Hengduan Mountains (Yangtze-Mekong-Salwin water divides) and the adjacent areas of the southwest China.

Key words: Schizopepon, System, Taxonomy, Pollen, Numerical taxonomy, Distribution.

路安民, 张志耘. 裂瓜属的研究[J]. 中国科学院大学学报.

Lu An-Ming, Zhang Zhi-Yun. Studies on the Genus Schizopepon Maxim. (Cucurbitaceae)[J]. .

[1]	王昕, 张娜, 乐荣武, 郑潇柔. 城市河岸带的斑块组成和空间分布对小气候的影响——以北京永定河河岸带为例[J]. 中国科学院大学学报, 2020, 37(5): 606-618.
[2]	冯齐心, 杨辽, 王伟胜, 陈桃, 黄双燕. 基于时序光谱重构的卷积神经网络遥感农作物分类[J]. 中国科学院大学学报, 2020, 37(5): 619-628.
[3]	唐思琦, 韩丛英, 郭田德. 基于机器学习的点集匹配算法[J]. 中国科学院大学学报, 2020, 37(4): 450-457.
[4]	石悦, 王宏琦, 郭新毅. 基于丰度分布约束的NMF端元生成方法[J]. 中国科学院大学学报, 2020, 37(4): 547-552.
[5]	赖训飞, 梁旭文, 谢卓辰, 李宗旺. 基于实体嵌入和长短时记忆网络的入侵检测方法[J]. 中国科学院大学学报, 2020, 37(4): 553-561.
[6]	赵择, 徐佑宇, 唐亮, 卜智勇. 基于改进一对一算法的网络流量分类[J]. 中国科学院大学学报, 2020, 37(4): 570-576.
[7]	李伯男, 赵彤, 吴敏. 基于胶囊网络的海量指纹纹型精准分类算法[J]. 中国科学院大学学报, 2020, 37(3): 387-397.
[8]	石耀霖, 程惠红, 黄禄渊, 任天翔. 用离散随机模型研究湖北新冠肺炎COVID-19流行病动力学特征[J]. 中国科学院大学学报, 2020, 37(2): 145-154.
[9]	宋晗, 杨炜暾, 耿修瑞, 赵永超. 基于卷积神经网络与主动学习的高光谱图像分类[J]. 中国科学院大学学报, 2020, 37(2): 169-176.
[10]	王东保, 王军锋, 霍元平, 刘海龙, 王晓英. 油相中荷电液滴变形和破碎特性的实验研究[J]. 中国科学院大学学报, 2020, 37(2): 274-280.
[11]	赵鹏, 陈桃, 王茜, 于瑞德. 气候变化和人类活动对新疆草地生态系统NPP影响的定量分析[J]. 中国科学院大学学报, 2020, 37(1): 51-62.
[12]	王帅, 覃驭楚, 杨富坤. 大面积建成区建筑密度遥感制图产品的精度验证[J]. 中国科学院大学学报, 2020, 37(1): 83-92.
[13]	王晨, 陈自强, 乔从丰. 高能电子-质子碰撞中重夸克偶素的遍举产生[J]. 中国科学院大学学报, 2019, 36(6): 729-735.
[14]	丁军锋, 王世民. 增强型地热系统的多区域多物理场耦合三维数值模拟[J]. 中国科学院大学学报, 2019, 36(5): 694-701.
[15]	康文佳, 林文辉, 张三国. 基于角度的变系数多分类支持向量机[J]. 中国科学院大学学报, 2019, 36(4): 449-460.