The Plant Kingdom Non-vascular plants – the mossess & Seedless Vascular plants – the ferns.
Seedless Plants
16
Seedless Plants Chapter 9 Section 2
description
Seedless Plants. Chapter 9 Section 2. Nonvascular Plants. Very small plants that have rhizoids rather than ROOTS. Nonvascular plants. Water is absorbed and distributed directly through cell membranes and CELL WALLS. Grow in DAMP environments Reproduce by SPORES rather than seeds. - PowerPoint PPT Presentation
Transcript of Seedless Plants
Seedless PlantsChapter 9 Section 2
Nonvascular PlantsO Very small plants that have rhizoids
rather than ROOTS.
Nonvascular plantsO Water is absorbed and distributed
directly through cell membranes and CELL WALLS.
O Grow in DAMP environments
O Reproduce by SPORES rather than seeds
ExamplesO Mosses – green, leaflike growths
arranged around a central stalk
O Liverworts – flattened, leaflike bodies
O Hornworts – have only one choloroplast in each of their cells
Mosses
Liverworts
Hornworts
Nonvascular PlantsO Frequently pioneer species –
organisms that are the first to grow in new or disturbed areas and which change ENVIRONMENT conditions
Seedless Vascular Plants
O Reproduce by spores, but have VASCULAR tissue that carries water and nutrients throughout the plants
Seedless Vascular Plants
O Can grow BIGGER and THICKER than nonvascular plants
O FERNS – largest group of seedless vascular plants
FernsO Have stems, leaves, and ROOTS
O LEAVES are called fronds
O Reproduce by SPORES found on the back of their fronds
Club MossesO Needlike leaves
HorsetailsO Jointed stem with a HOLLOW center
Importance of seedless plants
O Fuel – decaying seedless plants are compressed into peat and eventually COAL.
O Soil conditioners
O FERNS can be used for weaving material and basketry
