noun
lower vascular plants having dichotomously branched sporophyte divided into aerial shoot and rhizome and lacking true roots
• Syn: ↑order Psilotales
• Hypernyms: ↑plant order
• Member Holonyms: ↑Psilopsida, ↑class Psilopsida, ↑Psilotatae, ↑class Psilotatae
• Member Meronyms: ↑Psilotaceae, ↑family Psilotaceae
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\\ˌ ̷ ̷ ̷ ̷ˈtā(ˌ)lēz\ noun pluralUsage: capitalized
: 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
Useful english dictionary. 2012.