Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1984)

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

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

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

Index Kewensis plantarum phanerogamarum. nomina et synonyma omnium familiarum et graduum infrafamiliarum ab initio anni MDCCCCLXXI usque ad finem anni MDCCCCLXXV nonnulla etiam antea edita complectens Supplementum sextum decimum - Royal Botanic Gardens, Kew. (e prelo Clarendoniano)

Index Kewensis plantarum phanerogamarum. nomina et synonyma omnium familiarum et graduum infrafamiliarum ab initio anni MDCCCCLXXI usque ad finem anni MDCCCCLXXV nonnulla etiam antea edita complectens Supplementum sextum decimum - Royal Botanic Gardens, Kew. (e prelo Clarendoniano)

Phytoneuron (Guy L. Nesom, 2015)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1983)

The World List of Threatened Trees (1998)