Complex sentence: In their description of "N. naga", the authors compared it to the Sumatran endemics "N. ovata" and "N. spathulata", noting that it can be distinguished from these species on the basis of its lid appendage and frilled lid.
Split into simpler sentences: In their description of "N. naga", the authors compared it to the Sumatran endemics "N. ovata" and "N. spathulata". It can be distinguished from these species on the basis of its lid appendage and frilled lid.