马来西亚半岛榕属（桑科）部分分类群的叶脉研究
Studies on Leaf Venation in Selected Taxa of the Genus Ficus L. (Moraceae) in Peninsular Malaysia.
作者信息
Badron Ummu Hani, Talip Noraini, Mohamad Abdul Latiff, Affenddi Affina Eliya Aznal, Juhari Amirul Aiman Ahmad
机构信息
School of Environmental and Natural Resource Science, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor.
出版信息
Trop Life Sci Res. 2014 Dec;25(2):111-25.
A study on the variation of leaf venation patterns was conducted on 21 taxa of the genus Ficus in Peninsular Malaysia. The results showed the existence of eight leaf venation patterns based on veinlets, the ultimate marginal and areolar venation. The majority of species, such as F. annulata, F. benghalensis, F. benjamina, F. deltoidea var. angustifolia, F. deltoidea var. kunstleri, F. depressa, F. elastica, F. hispida, F. microcarpa, F. religiosa, F. tinctoria, F. ucinata and F. vasculosa, show tri-veinlets. The others exhibit the following: bi-veinlets in F. aurata and F. heteropleura; uni-veinlets in F. lepicarpa, F. schwarzii and F. superba; and simple veinlets in F. aurantiacea and F. fulva. F. sagittata presents no veinlets for areolar venation. The presence of tracheid or swollen veins at the centre of the lamina and the presence of cystolith cells and trichomes are common anatomical characteristics that could assist in group classification of the studied species. Variations in leaf venation patterns are not only valuable in identifying a taxon group, but can also be used to differentiate between species in the genus Ficus.
对马来西亚半岛榕属的21个分类群进行了叶脉模式变异研究。结果表明，基于细脉、最终边缘脉和小区脉存在八种叶脉模式。大多数物种，如环纹榕、孟加拉榕、垂叶榕、狭叶三角榕、贡氏三角榕、斜叶榕、橡胶榕、对叶榕、小叶榕、菩提树、黄果榕、乌叶榕和脉叶榕，显示三细脉。其他物种表现如下：金叶榕和异叶榕为双细脉；瘦果榕、施氏榕和大果榕为单细脉；橙黄榕和黄褐榕为简单细脉。箭叶榕的小区脉无细脉。叶片中部存在管胞或肿胀的叶脉以及存在钟乳体细胞和毛状体是常见的解剖特征，有助于对研究物种进行类群分类。叶脉模式的变异不仅在识别分类群方面有价值，还可用于区分榕属中的物种。
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