单词	Psilopsida
释义	Psilopsida plural noun Psi·​lop·​si·​da sīˈläpsədə : a subdivision of Tracheophyta comprising vascular plants with no roots, leaves only partially differentiated or lacking, no leaf traces, a usually protostelic vascular cylinder, and the sporangia merely terminal enlargements of the stem compare lycopsida , pteropsida , sphenopsida Word History Etymology New Latin, from psil- + -opsida (as in lycopsida)
随便看	gnosticest gnosticise gnosticised gnosticises gnosticising gnosticism gnosticisms gnosticize gnosticized gnosticizes gnosticizing gnostics gnothi seauton gnotobiotic gnotobiotically gnotobiotics GNP gnps gnr GnRH gnu gnu goat gnus gny-sur-marne go

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