article

Washington: G.P.O., 1898.

scientific article published in 1917

article

article

article by Frank Hall Knowlton published 1890 in Proceedings of the United States National Museum

scholarly article published in The Auk, October 1894

New York, Holt, 1909.

scientific article published in 1917

Washington,Govt. Print. Off.,1902. | New York Botanical Garden, LuEsther T. Mertz Library

Washington,Govt. Print Off.,1899. | New York Botanical Garden, LuEsther T. Mertz Library

1921 publication

scientific article published in 1923

scholarly article by W.T. Lee published in January 1917

scientific article published in 1926

Washington :Govt. Print. Off.,1899. | University of Connecticut Libraries (archive.org

scholarly article by Arnold Hague published in January 1899

scientific article

article

article

article

article

written work by Frank Hall Knowlton

Baltimore, Md.: Williams & Wilkins company, [1911]

article

article published July 1915

scientific article published in 1926

article published in May 1887

article

scholarly article

Washington :Govt. Print. Off.,1914. | New York Botanical Garden, LuEsther T. Mertz Library

Washington: Govt. Print. Off., 1893.

article

Washington, Govt. print. off., 1922.

Washington,Govt. print. off.,1922. | New York Botanical Garden, LuEsther T. Mertz Library

scientific article published in 1930

scientific article published in 1917

Washington: Govt. print. off., 1898.

scientific article published in 1924