Abstract The adpression fossil record from the Westphalian of the Intrasudetic Basin (Czech Republic) contains diversified medullosan prepollen organs. Langsettian bell-shaped prepollen organs were found in the Lampertice Member in the Žacleř area: Whittleseya elegans Newberry, W. delphinae Stockmans et Williere, W. silesiaca Pacyna et Zdebska and Givesia media (Stockmans) Stockmans et Williere. These fructifications may have been produced by plants with fronds of the fossil-genera Neuralethopteris Cremer and Alethopteris Sternberg. Parent plants of small Langsettian Aulacotheca sp. are uncertain. Duckmantian medullosan male fructifications from the Male Svatoňovice area are elongated capsules described as Aulacotheca idae Simůnek sp. nov. and were produced by plants with Alethopteris idae Simůnek fronds. The prepollen grains and cuticles were isolated from Whittleseya elegans, W. delphinae, Givesia media and Aulacotheca idae. All prepollen grains are oval with two longitudinal grooves and a monolete suture, and are classified as Monoletes ovatus Schopf. There is great overlap in the dimensions of the prepollen of Whittleseya elegans, W. delphinae and Givesia media – 155–230 μm long and 100–180 μm wide. Prepollen of Aulacotheca idae are much bigger – 330–375 μm long and 190–245 μm wide. The inner cuticular layer is gently cutinised with polygonal cells. Cuticles from the prepollen organ surface has elongated cells in Whittleseya elegans (with stomata) and Givesia media (with trichome bases), and has polygonal cells in Whittleseya delphinae (with periclinal cell wall thickenings) and Aulacotheca idae (with hollow papillae on periclinal cell walls). The question, as to whether Whittleseya elegans and W. delphinae are conspecific is discussed.

中文翻译：

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对产生髓质前花粉的器官、它们的前花粉和角质层的抑制（威斯特伐利亚，Intrasudetic 盆地，捷克共和国）

摘要 来自 Intrasudetic 盆地（捷克共和国）威斯特伐利亚的压覆化石记录包含多样化的髓质前花粉器官。在 Žacleř 地区的 Lampertice Member 中发现了 Langsettian 钟形预花粉器官：Whittleseya elegans Newberry、W. delphinae Stockmans et Williere、W. silesiaca Pacyna et Zdebska 和 Givesia media (Stockmans) Stockmans et Williere。这些果实可能是由具有化石属 Neuralethopteris Cremer 和 Alethopteris Sternberg 的叶子的植物产生的。小型 Langsettian Aulacotheca sp. 的亲本植物。不确定。来自 Male Svatoňovice 地区的 Duckmantian medullosan 雄性果实是细长的胶囊，被描述为 Aulacotheca idae Simůnek sp。十一月 并且由具有 Alethopteris idae Simůnek 叶子的植物生产。前花粉粒和角质层分离自 Whittlesaya elegans、W. delphinae、Givesia media 和 Aulacotheca idae。所有的前花粉粒都是椭圆形的，有两条纵向凹槽和一条单线缝合线，被归类为卵形单线纹 Schopf。Whittlesaya elegans、W. delphinae 和 Givesia media 的前花粉尺寸有很大的重叠——长 155-230 μm，宽 100-180 μm。Aulacotheca idae 的预花粉要大得多——长 330-375 微米，宽 190-245 微米。内部角质层被多边形细胞轻轻角质化。来自前花粉器官表面的角质层在 Whittleseya elegans（有气孔）和 Givesia media（有毛状体基部）中具有细长的细胞，并且在 Whittleseya delphinae（具有周缘细胞壁增厚）和 Aulacotheca idae（在周缘细胞壁上具有空心乳头）中具有多边形细胞）。