荷属东印度群岛的猪笼草科植物
In his 1928 monograph "The Nepenthaceae of the Netherlands Indies", B. H. Danser mentioned what he thought was the hybrid "N. bongso" × "N. pectinata"; however, this plant material is now known to represent "N. densiflora", a species described by Danser 12 years later.