Nepenthales

Taxonomy

The order Nepenthales as of 2018 is a clade within Caryophyllales and contains the following families:

Carnivorous Nepenthales

• Droseraceae
• Nepenthaceae
• Ancistrocladaceae
• Drosophyllaceae
• Dioncophyllaceae

Non-carnivorous Nepenthales

• Polygonaceae
• Frankeniaceae
• Plumbaginaceae
• Tamaricaceae

Evolution within Nepenthales

Common traits of the Nepenthales include the presence of glandular hairs or active secretory tissues. The presence of these glandular hairs and secretory tissues is believed to be important to the evolution of carnivory within Nepenthales. Carnivory within the Nepenthales is believed to have only evolved once with the carnivorous lineage diverging from the rest of the Nepenthales around 95.1Mya in the late Cretaceous.

APG IV system

Plant taxonomy systematists currently favor the APG IV system of 2016 over the older Cronquist system for classifying flowering plants (Angiosperms).

The 2009 APG III system assigned the first two families to the order Caryophyllales and the last family to the order Ericales.

References

References

1. Reveal, James L.. (2011). "New ordinal names established by changes to the botanical code". Phytotaxa.
2. Ellison, Aaron M.. (2018). "Carnivorous plants: physiology, ecology, and evolution". Oxford university press.
3. (2018). "Carnivorous plants: physiology, ecology, and evolution". Oxford University Press.
4. Angiosperm Phylogeny Group (2003). [http://onlinelibrary.wiley.com/doi/10.1046/j.1095-8339.2003.t01-1-00158.x/abstract An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II.] ''[[Botanical Journal of the Linnean Society]]'' 141(4): 399-436. [[doi: 10.1046/j.1095-8339.2003.t01-1-00158.x]]