Flora of the Rocky Mountains and adjacent plains, Colorado, Utah, Wyoming, Idaho, Montana, Saskatchewan, Alberta, and neighboring parts of Nebraska, South Dakota, North Dakota, and British Columbia Q Science
Flora of the southern United States: containing an abridged description of the flowering plants and ferns of Tennessee, North and South Carolina, Georgia, Alabama, Mississippi, and Florida: arranged according to the natural system Q Science
Flora regni Borussici : flora des Königreichs Preussen oder Abbildung und Beschreibung der in Preussen wildwachsenden Pflanzen Q Science