The descendants of Thomas Lawton of Portsmouth, Rhode IslandElva Lawton · First published 1949Open the Tome
A new Orthotrichum from Northern CaliforniaLawton, Elva 1896-1993 · First published 1973Open the Tome
Barbula rufofusca, a new species of moss from northwestern North AmericaElva Lawton, Frederick J. Hermann · First published 1972Open the Tome
Keys for the identification of the mosses of the Pacific NorthwestElva Lawton · First published 1971Open the Tome
Notes on Scleropodium, with the description of a new speciesElva Lawton · First published 1967Open the Tome
A revision of the genus Lescuraea in Europe and North AmericaElva Lawton · First published 1957Open the Tome
Regeneration and induced polyploidy in Osmunda regalis and Cystopteris fragilisElva Lawton · First published 1936Open the Tome
Keys for the identification of the mosses of Washington and OregonElva Lawton · First published 1900Open the Tome
