There has been confusion surrounding this taxon and N. stenophylla ever since it was first described. N. fallax matches N. stenophylla in most respects, except for the shape of the lid; the type specimen of N. fallax has an orbiculate lid, whereas that of N. stenophylla is narrow. However, the description of N. stenophylla was based on a plant raised from seed in a greenhouse in England, and the shape of the lid could be an aberrant characteristic resulting from artificial growing conditions.
In his seminal monograph "The Nepenthaceae of the Netherlands Indies", B. H. Danser treated N. fallax as a junior synonym of N. stenophylla. This interpretation was supported by a number of subsequent authors.
The following natural hybrids involving N. fallax have been recorded.
BUXTEHUDE: O dulcis Jesu, BuxWV 83. Ciacona. O clemens, BuxWV 82. Praeludium. Fallax mundus, BuxWV 28. Sonata. O Gottes Stadt, BuxWV 87. Passacaglia. Klag-Lied, BuxWV 76b
Nov 01, 2011; BUXTEHUDE O dulcis Jesu, BuxWV 83. Ciacona. O demons, BuxWV 82. Praeludium. fallax mundus, BuxWV 28. Sonata. O Gottes...
Effect of a temperature gradient on Sphagnum fallax and its associated living microbial communities: a study under controlled conditions.(Report)
Mar 01, 2011; Introduction Climatic change models cover a wide range of temperature-increase scenarios (2[degrees]C up to 8[degrees]C),...