London, Methuen & Co., 1892.

London, Duckworth and Co.;1899.

London: Duckworth and co.;1903.

digital scan copy provided by Biblioteca Digital del Real Jardin Botanico de Madrid

1911 book by George Edward Massee

London,L. Reeve and Co.,1891. | New York Botanical Garden, LuEsther T. Mertz Library

London: G. Bell & sons, 1892-95.

New York: Macmillan, [1910?]

London: Duckworth, 1902.

London, Methuen, 1892.

London,Whittaker,1891.

London, Whittaker, 1891.

London, Longmans, Green & co.; [etc., etc.]1913.

London: Duckworth, 1910.

[Croydon, England]: The Society, 1908.

London, Methuen & Co., 1891.

London,A. Brown,1905. | New York Botanical Garden, LuEsther T. Mertz Library