1. Sphenocleaceae;AIRY SHAW;Flora Malesiana Bull.,1948
2. Note on the taxonomic position of Nyctanthes L. and Dimetra Kerr;AIRY SHAW;Kew Bull.,1952
3. The Cactaceae and the study of seedlings;ARBER;New Phytol.,1910
4. The development of the ovule and seed of jointed cactus (Opuntia aurantiaca Lindley);ARCHIBALD;S. Afr. J. Sci.,1939
5. BAILLON, H. (1867–1895) Histoire des Plantes, Paris.