[1] It was the most exhaustive revision of the genus up to that point, covering all known species, and included detailed accounts of the structure, anatomy, and development of Nepenthes.
[1] Macfarlane synonymised a number of species, including N. korthalsiana with N. gracilis, N. macrostachya with N. mirabilis, N. sumatrana with N. treubiana (later reversed),[9] and both N. teysmanniana and N. tomentella with N. albomarginata.
Taxon names are listed as they appear in the monograph, including orthographic variants, though specific epithets derived from proper nouns have been decapitalised.
[1] At the time of its publication, "Nepenthaceae" was praised for its many high quality illustrations (95 images in 19 figures) of both morphological and anatomical features.
[2] Much additional herbarium material was accumulated during this time, representing both new species and better specimens of known taxa, which highlighted issues with previous interpretations.
[4][9] The need for a new revision of the genus was satisfied with the publication of B. H. Danser's seminal 1928 monograph, "The Nepenthaceae of the Netherlands Indies".