@article{article, title = {{Tetrads in sporangia and spore masses from the Upper Silurian and Lower Devonian of the Welsh Borderland}}, publisher = {{Oxford University Press (OUP)}}, url = {{}}, year = {{1999}}, month = {{6}}, author = {{EDWARDS D}}, doi = {{10.1006/bojl.1998.0243}}, volume = {{130}}, journal = {{Botanical Journal of the Linnean Society}}, issue = {{2}}, pages = {{111-156}}, note = {{Accessed on 2024/12/22}}}