An illustrated flora of the northern United States, Canada and the British possessions from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102d meridianNathaniel Britton · First published 1980Open the Tome
An illustrated flora of the northern United States and CanadaNathaniel Britton · First published 1970Open the Tome
The Cactaceae; descriptions and illustrations of plants of the cactus familyNathaniel Britton · First published 1963Open the Tome
An illustrated flora of the northern United States, Canada and the British possessions, Vol. IINathaniel Britton · First published 1913Open the Tome
An illustrated flora of the northern United States, Canada and the British possessions, Vol. IIINathaniel Britton · First published 1913Open the Tome
Manual of the flora of the northern states and CanadaNathaniel Britton · First published 1901Open the Tome
An illustrated flora of the northern United StatesNathaniel Britton · First published 1896Open the Tome
An illustrated flora of the northern United States, Canada and the British possessionsNathaniel Britton · First published 1896Open the Tome
An illustrated flora of the northern United States, Canada and the British possessions from Newfoundland to the parallel of the southern boundary of VirginiaNathaniel Britton · First published 1896Open the Tome
