Hibernation and rejuvenation, exemplified by North American herbsHerman Theodor Holm · First published 1925Open the Tome
The check-list and the new illustrated flora of North AmericaHerman Theodor Holm · First published 1896Open the Tome
A study of some anatomical characters of North American GramineaeHerman Theodor Holm · First published 1891Open the Tome
Contributions to the knowledge of the germination of some North American plantsHerman Theodor Holm · First published 1891Open the Tome
Novaia-Zemlia's vegetation, særligt dens phanerogamerHerman Theodor Holm · First published 1885Open the Tome
