R

Robert T. Clausen

1911

25 books found

Books by Robert T. Clausen
Variation of species of Sedum of the Mexican Cordilleran PlateauRobert T. Clausen
⏱ 27m

Variation of species of Sedum of the Mexican Cordilleran Plateau

Robert T. Clausen

198127 pp.
Biennial species of Sedum of the Sierra Madre Occidental and Mexican PlateauRobert T. Clausen
⏱ 3h 37m

Biennial species of Sedum of the Sierra Madre Occidental and Mexican Plateau

Robert T. Clausen

1977217 pp.
On the status of Botrychium dissectum var. oneidenseRobert T. Clausen
⏱ 1h 0m

On the status of Botrychium dissectum var. oneidense

Robert T. Clausen

194460 pp.
Najas arguta in Central America and its Relationship to N. wrightianaRobert T. Clausen

Najas arguta in Central America and its Relationship to N. wrightiana

Robert T. Clausen

1946No page data
Northeastern limits of the known range of Rhus toxicodendrenRobert T. Clausen
⏱ 59m

Northeastern limits of the known range of Rhus toxicodendren

Robert T. Clausen

194159 pp.
Hybrids of the eastern North American subspecies of Lycopodium complanatum and L. tristachyumRobert T. Clausen

Hybrids of the eastern North American subspecies of Lycopodium complanatum and L. tristachyum

Robert T. Clausen

1945No page data
A botanical study of the yam beans (Pachyrrhizus)Robert T. Clausen
⏱ 38m

A botanical study of the yam beans (Pachyrrhizus)

Robert T. Clausen

194538 pp.
Studies in the GentianaceaeRobert T. Clausen
⏱ 11h 3m

Studies in the Gentianaceae

Robert T. Clausen

1941663 pp.
A new species of Najas from the Hudson RiverRobert T. Clausen

A new species of Najas from the Hudson River

Robert T. Clausen

1937No page data
Studies in the CrassulaceaeRobert T. Clausen

Studies in the Crassulaceae

Robert T. Clausen

1940No page data
Contributions to the flora of New JerseyRobert T. Clausen

Contributions to the flora of New Jersey

Robert T. Clausen

1939No page data
A monograph of the OphioglossaceaeRobert T. Clausen
⏱ 2h 57m

A monograph of the Ophioglossaceae

Robert T. Clausen

1938177 pp.
Variations of Ophioglossum vulgatumRobert T. Clausen

Variations of Ophioglossum vulgatum

Robert T. Clausen

1939No page data
Ophioglossum petiolatum HookerRobert T. Clausen
⏱ 11m

Ophioglossum petiolatum Hooker

Robert T. Clausen

193811 pp.
Carex aestivalis and Carex lurida var. gracilis on the glaciated Allegheny plateauRobert T. Clausen
⏱ 2h 56m

Carex aestivalis and Carex lurida var. gracilis on the glaciated Allegheny plateau

Robert T. Clausen

1943176 pp.
SedumRobert T. Clausen
⏱ 3h 43m

Sedum

Robert T. Clausen

1978223 pp.
The section Sedastrum of SedumRobert T. Clausen
⏱ 4h 56m

The section Sedastrum of Sedum

Robert T. Clausen

1943296 pp.
Sagittaria Edwardsiana, a new species from the New Jersey pine barrensRobert T. Clausen
⏱ 31m

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

Robert T. Clausen

193731 pp.
Nomenclatural changes and innovations in the CrassulaceaeRobert T. Clausen

Nomenclatural changes and innovations in the Crassulaceae

Robert T. Clausen

1946No page data
Studies in the OphioglossaceaeRobert T. Clausen
⏱ 27m

Studies in the Ophioglossaceae

Robert T. Clausen

194327 pp.