Robert T. Clausen

Books by Robert T. Clausen

Total count: 24

• Sagittaria Edwardsiana, a new species from the New Jersey pine barrens

  1937-01-01
• A new species of Najas from the Hudson River

  1937-01-01
• A monograph of the Ophioglossaceae

  G. Banta publishing company1938-01-01
• Ophioglossum petiolatum Hooker

  1938-01-01
• Contributions to the flora of New Jersey

  1939-01-01
• Variations of Ophioglossum vulgatum

  1939-01-01
• Plants of central Pennsylvania

  1939-01-01
• Studies in the Crassulaceae

  1940-01-01
• Studies in the GentianaceaeGentiana, section Pneumonanthe, subsection Angustifoliae

  1941-01-01
• Northeastern limits of the known range of Rhus toxicodendren

  1941-01-01
• Studies in the OphioglossaceaeBotrychium, subgenus Sceptridium

  1943-01-01
• Carex aestivalis and Carex lurida var. gracilis on the glaciated Allegheny plateau

  1943-01-01
• The section Sedastrum of Sedum

  1943-01-01
• On the status of Botrychium dissectum var. oneidense

  1944-01-01
• A botanical study of the yam beans (Pachyrrhizus)

  Cornell University1945-01-01
• Hybrids of the eastern North American subspecies of Lycopodium complanatum and L. tristachyum

  1945-01-01
• Selaginella, subgenus Euselaginella in the Southeastern United States

  1946-01-01
• Nomenclatural changes and innovations in the Crassulaceae

  1946-01-01
• Najas arguta in Central America and its Relationship to N. wrightiana

  1946-01-01
• Woodsia oregana on Sentinel Butte, North Dakota

  1953-01-01
and 4 more