IODP SEDIS - Thesaurus -

vascular taxa
RT	morphology
	Pteropsida
	Sphenopsida
	Pteridophyta
	Lycopsida
	Psilopsida
SN	Meaning includes division of plants with vascular systems including the Psilopsida, Sphenopsida, Pteropsida, and Lycopsida. Before 1993, also search vascular plants if applicable. Added to Thesaurus in 1993.