| 释义 |
psi·lo·ta·les
\ˌ ̷ ̷ ̷ ̷ˈtā(ˌ)lēz\ noun plural
Usage: capitalized
Etymology: New Latin, from Psilotum + -ales
: 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 |