“…Axial parenchyma is vasicentric scanty in Plakothira, whereas only diffuse (abundant to scarce), banded, and pervasive (parenchyma replaces all or large proportion of potential zones of imperforate tracheary elements) types have thus far been reported from Loasaceae (Carlquist 1984a). This would seem a very distinctive feature, because in many families of dicotyledons, axial parenchyma types vary relatively little.…”