8-贝里克郡下石炭世岩石中Mazocarpon、Achlamydocarpon和Cystosporites的一些标本

J. G. Long
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引用次数: 17

摘要

摘要报道了一种离体孢子体和大孢子囊。它形成了12个大孢子。从离体孢子囊和大孢子囊两方面描述了该菌。后者通过在远端区域的三个狭缝打开,从而使授粉成为可能。在水泥石群底部的灰床上记录了一个泥盆孢体Chaloner和Pettitt的标本。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
VIII.—Some specimens of Mazocarpon, Achlamydocarpon and Cystosporites from the Lower Carboniferous Rocks of Berwickshire
Synopsis A detached sporophyl and megasporangium of Mazocarpon pettycurense Benson is described. It formed twelve megaspores. Achlamydocarpon scoticum sp. nov. is described from detached sporophylls and megasporangia. The latter opened by means of three slits in the distal region so making pollination possible. A specimen of Cystosporites devonicus Chaloner and Pettitt is recorded from ash beds at the base of the Cementstone Group.
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