仓田重夫
"Nepenthes campanulata" was described by Shigeo Kurata in 1973 based on a single specimen, "Kostermans 13764", deposited at the herbarium of the Singapore Botanic Gardens. An isotype labelled "spec. nov.!" is held at the Museum National d'Histoire Naturelle in Paris. Two more isotypes are deposited at the New York Botanical Garden. According to Kurata, the collector stated that the species was endemic to this single location "presumably owing to its habitat which is noted as sand and limestone walls at an altitude of 300 m".