Shigeo Kurata
The first known collection of "N. vogelii" was made in 1961 on Mount Api in Gunung Mulu National Park by forest botanist J. A. R. Anderson. The material, labelled as "N. fusca", was deposited at the Sarawak Forestry Department herbarium. In 1969, botanist Shigeo Kurata examined this specimen and noted that it did not fall within the known variation exhibited by "N. fusca".