X.—On Some Undescribed Species from the Lower Carboniferous Flora of Berwickshire; together with a Note on the Genus Stenomyelon Kidston

Abstract

The publication by Kidston and Gwynne-Vaughan ïn 1912 of a memoir on Stenomyelon tuedianum Kidston marked the beginning of a proposed series, which was never continued by them, on the Carboniferous Flora of Berwickshire, based upon material collected during 1900 and 1901 from rocks of the Calciferous Sandstone Series (Cementstone Group) at various localities in Berwickshire while Kidston was working with Mr A. Macconochie of the Geological Survey. Brief notes on this material, with identifications of some of the plants found in compression form, were contributed by Kidston to the “Summary of the Progress of the Geological Survey” (Kidston, 1901, 1902 a), where he commented upon the interest and importance of the material; but beyond recording the occurrence of petrified specimens, no further description of these was given at the time. An incomplete list of anatomical species identified from this Berwickshire material was also given by Kidston at a later date (Kidston, 1923, p. 19). Some of the petrifactions, in addition to the Stenomyelon tuedianum already referred to (Kidston and Gwynne-Vaughan, loc. cit.), have been described by various writers, mostly from specimens in the Kidston Collection of Fossil Plant Slides in the Botany Department of Glasgow University, where the majority of the sections is to be found.