A bibliographic enumeration of Bornean plants - Merrill, Elmer D. (Elmer Drew), 1876 -1956 (Printed by Fraser & Neave, ltd, 1921)

A bibliographic enumeration of Bornean plants - Merrill, Elmer D. (Elmer Drew), 1876 -1956 (Printed by Fraser & Neave, ltd, 1921)

Botanical publications of E.D. Merrill - Merrill, Elmer D. (Elmer Drew), 1876 -1956 (1899)

Catalogue of the flowering plants and gymnosperms of Peru = Catálogo de las angiospermas y gimnospermas del Perú - Brako, Lois, 1950 - (Missouri Botanical Garden, 1993)

Checklist of CITES Species and Annotated CITES Appendices and Reservations - Inskipp, Tim (CITES Secretariat, UNEP-WCMC, 2005)

Checklist of CITES Species and Annotated CITES Appendices and Reservations - Inskipp, Tim (CITES Secretariat, UNEP-WCMC, 2005)

Checklist of CITES Species and Annotated CITES Appendices and Reservations - Inskipp, Tim (CITES Secretariat, UNEP-WCMC, 2005)

Fieldiana Botany - Field Museum of Natural History. (Chicago Natural History Museum, 1960)

Garden and forest; a journal of horticulture, landscape art and forestry - Sargent, Charles Sprague, 1841 -1927 (The Garden and forest publishing co, 1894)

The Gardens' bulletin, Singapore (Govt. Print. Off. [etc.], 1993)

The Gardens' bulletin, Singapore (Govt. Print. Off. [etc.], 1993)

The Gardens' bulletin, Singapore (Govt. Print. Off. [etc.], 1995)

The Gardens' bulletin; Straits Settlements (Botanic Gardens, Singapore, 1928)

Index Kewensis. names of seed-bearing plants at the rank of family and below published between January 1981 and the end of 1985 with some omissions from earlier years Supplement eighteen - Royal Botanic Gardens, Kew. (Clarendon Press, 1987)

Journal d'horticulture pratique de la Belgique : ou guide des amateurs et jardiniers (F. Parent, 1859)

Journal of the Straits Branch of the Royal Asiatic Society - Royal Asiatic Society of Great Britain; Ireland. Malaysian Branch. (1894)

Malaya botanical exploration - Botanic Gardens (Singapore) (1930)

Orchis :Monatsschrift der Deutschen Gesellschaft für Orchideenkunde - Dammer, Udo. (1910)

Das Pflanzenreich :regni vegetablilis conspectus - Engler, Adolf, 1844 -1930 (W. Engelmann, 1900)

Richardiana (Tropicalia, 2014)