1. An apparently heterosporous plant from the Middle Devonian of New Brunswick;Andrews H. N.;Palaeontology,1974
2. Rhacophyton from the Upper Devonian of West Virginia
3. Observations on fossil plants from the Devonian of Eastern North America. IV. Plant remains from the Catskill Delta deposits of Northern Pennsylvania and Southern New York;Arnold C. A.;Contr. Mus. Paleont. Univ. Mich.,1939