Media type: E-Article Title: Gnetales.H. H. W. Pearson Contributor: Chamberlain, C. J. imprint: University of Chicago Press, 1930 Published in: Botanical Gazette Language: English DOI: 10.1086/334047 ISSN: 0006-8071 Keywords: General Earth and Planetary Sciences ; General Environmental Science Origination: Footnote: