Colin Ridsdale

• Trees
• Trees
• A revision of Badusa (Rubiaceae, Condamineae, Portlandiinae)
• A revision of Mitragyna and Uncaria (Rubiaceae)
• A revision of the tribe Cephalantheae (Rubiaceae)
• A revision of the tribe Naucleeae s.s. (Rubiaceae)
• A synopsis of the African and Madagascan Rubiaceae - Naucleeae
• Identification lists of Malesian specimens
• Jackiopsis, a new name for Jackia Wall. (Rubiaceae-Jackieae)
• Leea asiatica (L.) Ridsd., a new name for Nalugu Rheede
• Leeaceae
• Notes on New Guinea Rubiaceae