Psilotales

plural noun
Psi·​lo·​ta·​les

Definition of Psilotales

: an order of lower tracheophytes (subdivision Psilopsida) having a dichotomously branched sporophyte that is divided into aerial shoot and rhizome, lacks true roots, and has few or minute leaves, and having a gametophyte that is subterranean and free from chlorophyll — see psilotaceae

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History and Etymology for Psilotales

New Latin, from Psilotum + -ales

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Cite this Entry

“Psilotales.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Psilotales. Accessed 10 Aug. 2020.

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