Assertion: gametophyte's tissue | /r/HasProperty | vein
Facets:
Source sentences:
text: The genus Psilotum contains two species and one hybrid (P. complanatum, P. nudum, and P. x intermedium) of pantropical plants with whisklike green stems and scalelike appendages called “enations,” which may represent reduced leaves, but they contain no vascular tissue (veins).