In: Biology
Fill the table
Habitat | Growth form | Tissue differentiation | Stomata | Conducting tissues | Reproductive structures | Branching | |
Rhyniophyta | |||||||
Zosterophyllophyta | |||||||
Trimerophyta |
What do these three phylum tell us about the evolution of the traits in the table above?
Habitat |
Growth form |
Tissue Differentiation |
Stomata |
Conducting tissues |
Reproductive structures |
Branching |
|
Rhyniophyta |
Hot springs |
Stems with sporangia and are stem group tracheophytes |
Simple shoots that grow from an axis and has simple branched stems. They lacked leaves, seeds and flowers with horizontal stems and roots. |
No as they lacked true leaves |
Some known to consists of xylem but most of them lacked vascular tissue |
Spore bearing |
Dichotomously branched |
Zosterophyllophyta |
Aquatic environment |
Creeping stems with dichotomous branching and narrow leaves which are linear in shape |
Consists of stems that is covered with small spines and has a vascular column |
No |
Xylem exarch |
Consists of sporangium |
Dichotomous or monopodial branching |
Trimerophyta |
Tropical habita |
Consists of branching stems with vascular tissues and has a central bundle located in the center |
Vascular tissue with a central stem and have unequal branching |
No |
Xylem exarch or mesarch |
Sporangium which is of shape like reniform |
Dichotomously branched |