@book{bhlpg41740236, title = {Contributions from the United States National Herbarium }, volume = {v.10 (1906-1908)}, url = {https://www.biodiversitylibrary.org/page/41740236}, publisher = {Smithsonian Institution Press}, author = {United States. National Herbarium. }, year = {1907}, pages = {Page 258}, } @book{bhlpg369875, title = {Contributions from the United States National Herbarium }, volume = {v.10 (1906-1908)}, url = {https://www.biodiversitylibrary.org/page/369875}, publisher = {Smithsonian Institution Press}, author = {United States. National Herbarium. }, year = {1906-1908}, pages = {Page 258}, } @book{bhlpg421824, title = {Hedwigia }, volume = {v.6 (1867)}, url = {https://www.biodiversitylibrary.org/page/421824}, publisher = {Verlag und Druck von C. Heinrich}, author = {}, year = {1867}, pages = {Page 137}, } @book{bhlpg41740724, title = {Preussische Diatomeen }, url = {https://www.biodiversitylibrary.org/page/41740724}, publisher = {}, author = {Schumann, Julius, 1810 -1868}, year = {1862}, } @book{bhlpg48888986, title = {Proceedings of the Royal Society of Edinburgh }, volume = {v.16=no.129 (1888-1889)}, url = {https://www.biodiversitylibrary.org/page/48888986}, publisher = {Royal Society of Edinburgh}, author = {Royal Society of Edinburgh. }, year = {1888}, pages = {Page 515}, } @book{bhlpg14800831, title = {Schriften der Königlichen Physikalisch-Ökonomischen Gesellschaft zu Königsberg }, volume = {jahrg.7-9 (1866-1868)}, url = {https://www.biodiversitylibrary.org/page/14800831}, publisher = {In Commission bei Gräfe und Unzer}, author = {Königliche Physikalisch-Ökonomische Gesellschaft zu Königsberg. }, year = {1866}, pages = {Page 62}, }