Overview NonVascular Plants Phylum Bryophyta Phylum Hepatophyta Phylum

Overview: Non-Vascular Plants • Phylum Bryophyta • Phylum Hepatophyta • Phylum Anthocerophyta

Phylum Bryophyta = the Mosses

Phylum Bryophyta = the Mosses General characteristics: • short plants • no vascular system • no “true” stems, roots, or leaves • need constant water supply for survival

Phylum Bryophyta = the Mosses Habitat • wetlands, moist areas, areas with standing water • Depend upon diffusion for transport of nutrients • Require water for reproduction

Phylum Bryophyta = the Mosses Reproduction • Needs standing water for sperm to swim to eggs • Alternation of generations: alternation between a gameophyte generation & a sporophyte generation • Reproductive structures = SPORES (no seeds) Moss sperm Moss spores

Phylum Bryophyta = the Mosses Structures: • Capsule / Sporangium • Sporophyte • Gametophyte • Rhizoids (root-like)

Phylum Bryophyta : examples Sphagnum • Function= retain water, improve soil • e. g. aid in orchid cultivation

Phylum Bryophyta : examples Plume moss

Phylum Bryophyta : examples Common peat moss • Used to improve soil water retention Peat moss is a dead form of Sphagnum moss that grows in the North American taiga.

Phylum Bryophyta = the Mosses Dominant generation of mosses = gametophyte this is the sporophyte

Phylum Hepatophyta (Liverworts)

Phylum Hepatophyta (Liverworts) • short, flat plant • no vascular system • no “true” stems, roots, or leaves • no stomata • habitat= wetlands • need standing water for sexual reproduction (sperm swim to eggs) • Dominant generation = gametophyte

Phylum Hepatophyta – examples Marchantia

Phylum Hepatophyta – examples Monoclea forsteri

Phylum Hepatophyta – examples Assorted liverworts

Mosses vs. Liverworts

Phylum Anthocerophyta Hornworts

Phylum Anthocerophyta Hornworts • short, flat plant • no vascular system, • no “true” stems, roots, or leaves • sporophytes have stomata • Habitat – wetlands • Reproduction - standing water for sexual repro. (sperm swim to eggs) • Dominant generation= gametophyte