XVIII. On Psygmophyllum majus, sp. nov., from the Lower Carboniferous Rocks of Newfoundland, together with a Revision of the Genus and Remarks on its Affinities
Published in Transactions of the Linnean Society of London. 2nd Series: Botany, in 1912, in volume 7, issue 18, pages 391-407
Date published:1912-07