Define Peristome:

Define Holdfast:

Which of the following divisions lacks a true cell wall ?

Define Holdfast:

The _______________are specialized cells in come Cyanobacteria that can fix nitrogen.

Specialized survival cells in the Cyanobacteria are _________________.

The leaves of the Bryophyta are called

Define Rhizoid:

The structure that produces the sperm in the bryophytes is the

A _________________________ is a cluster or chain of reproductive structures found in the club mosses and horsetails.