Psilotales
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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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Merriam-Webster unabridgedWords at Play
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