Lab 10

Vascular plants

Vascular plants

Tetrads

Lycophyta

Lycophyta

P Lycopodium

A Lycopodium stem

A Lycopodium strobilus

P Selaginella

D Selaginella “resurrection plant”

A Selaginella “sporeling”

D Selaginella strobilus

A Selaginella strobilus

D Isoetes

D Isoetes megaspores and microspores

Psilotophyta

Psilotophyta

P Psilotum

D Psilotum rhizomes

A Psilotum rhizome

A Psilotum meiosporangium

Appearances can be deceiving