Mosses and liverworts, simple plants?

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Mosses and liverworts, simple plants?
by Jan Parmentier
Micscape Magazine

Mosses (Bryophyta) are quite interesting, simple green land plants with leaves and a stem and always without roots. In many mosses, the leaves are only one cell thick, except for the midribs, which are sometimes present. So the leaves are easy objects for the microscope. The plant is normally attached to the ground by delicate, colourless or brown threads, the rhizoids.

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