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首页> 外文期刊>Bothalia: African Biodiversity & Conservation >Leaf anatomy of the South African Danthonieae (Poaceae). V. Merxmuellera macowanii , M. davyi and M. aureocephala
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Leaf anatomy of the South African Danthonieae (Poaceae). V. Merxmuellera macowanii , M. davyi and M. aureocephala

机译:南非丹tho科(禾本科)的叶片解剖。 V. Merxmuellera macowanii,M。davyi和M. aureocephala

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Transverse sections and abaxial epidermal scrapes, of herbarium and freshly fixed leaf blade material, of Merxmuellera macowanii (Stapf) Conert, M. davyi (C. E. Hubb.) Conert and M. aureocephala (J. G. Anders.) Conert, were examined using light microscopy. The leaf anatomy o f these three species is very similar in all respects with the exception o f certain? M. aureocephala specimens. In addition, the anatomy indicates a relationship between these three species and M. disticha (Nees) Conert. This group of species differs anatomically from M. stricta (Schrad.) Nees, and related species such as? M. drakensbergensis (Schweick.) Conert and? M. stereophylla (J. G. Anders.) Conert, in the sequence of vascular bundles along the width of the leaf blade and associated characters. However, the M. aureocephala specimens, not having the? M. disticha type of vascular bundle arrangement, anatomically resemble the M. stricta group of species, and M. aureocephala appears to be intermediate between these two species groups.resemble the M. stricta group of species, and M. aureocephala appears to be intermediate between these two species groups.
机译:使用光学显微镜检查了Merxmuellera macowanii(Stapf)Conert,M。davyi(C.E. Hubb。)Conert和M. aureocephala(J.G. Anders。)Conert的标本和新鲜固定的叶片材料的横切面和背面表皮擦伤。这三种物种的叶片解剖在所有方面都非常相似,除了某些方面? M. aureocephala标本。此外,解剖结构表明这三个物种与M. disticha(Nees)Conert之间存在关系。这一组物种在解剖学上不同于M.stricta(Schrad。)Nees,以及其他相关物种,例如? M. drakensbergensis(Schweick。)Conert和? M.stereophylla(J. G. Anders。)Conert,沿叶片宽度的维管束序列和相关特征。但是,金黄色葡萄球菌标本,没有?在解剖学上类似于M.stricta组物种,M.disticha类型的血管束排列,并且M.aureocephala似乎介于这两个物种组之间。类似于M.stricta组物种,而A.oureocephala似乎处于中间物种在这两个物种之间。

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