Brazil, Plant conservation, and Biodiversity
Brazil, Phytophysionomy, Cadeia do Espinhaço (Brazil), and Caatinga
Brazil, Geographical distribution, Cactaceae, Cadeia do Espinhaço (Brazil), Cacti, and Endemic plants
New species, Polyalthia saprosma, and Borneo
Systematics, Taxonomy, Malaysia, Malesia, Brunei, Darussalam (Indonesia), Indonesia, and Lianas
Austrobaileyales, Piperales, Laurales, Nymphaeales, Ridley, Henry Nicholas (1855-1956), Magnoliales, Canellales, and Chloranthales
Arecaceae, Madagascar, Palmae, Dypsis ambositrae, and Dypsis decipiens
New species, Africa, Apocynaceae, and Tropical Africa