A major interest was the family
Proteaceae, The monograph was said by
J.P.Rourke of the
Compton Herbarium, himself a specialist in Proteaceae, to be a broad survey of the whole family on the basis of the anatomy and morphology of the leaves, stems, inflorescences, flowers, and fruits of representative species from most of the living genera. Embryological features are treated in detail and accounts of the cytology and fossil records are also provided....As the leading researcher on this family, Venkata Rao has, not unnaturally, drawn heavily on his own work but has nevertheless succeeded in dealing with the literature as a whole in a comprehensive manner. A second reviewer,
Ronald Melville (of
Kew Gardens), disagreed with Rao's phylogenetic and evolutionary conclusions but thought that many would be grateful to Venkata Rao "for bringing together in one volume such a detailed, comparative account of the vegetative and floral morphology and anatomy, the cytology and embryology, which will make it a valuable work of reference for a long time to come." Within the
Proteaceae, he authored the tribes, Macadamieae and Lambertieae (
basionym of Lambertiinae) (both now subsumed into the
Grevilleoideae). He also worked on other families, in particular, the
Sterculiaceae,
Malvaceae and
Bombacaceae (now subsumed in an enlarged
Malvaceae), and also
Euphorbiaceae,
Elaeocarpaceae and
Apocynaceae. His work centred on
plant anatomy,
morphology and embryology and also involved other families. ==References==