Diversity of Plants Flashcards
(8 cards)
Phylum Bryophyta is
Phylum Pterophyta is
What are the group of seed plants non-flowering plants called?
What are the group of seed plants flowering plants called?
Moses
ferns
Gymnosperms (cones)
Angiosperms
Where do Bryophyta live?
What type of tissue do they not have?
Size?
Alone or in groups?
What do they rely on for fertilization?
Live in damp, shady, terrestrial (land) environments
No vascular tissue
diffusion only occur over short distances. If they were tall they wouldn’t be able to transport the nutrients to the whole plant.
Ø
Short (up to 20 cm)
Ø
Live in clumps
Ø
Rely on water for fertilization (live in damp for this reason)
Bryophyte (moss)
do they have true leaves stems and roots?
Do mosses have seeds?
How are they dispersed
Why are they important?
no they have tiny leaflets
thin thread like structures called rhizoids- to attach themselves to and absorb water
no, spores, held in the capsule
wind or water
prevent soil erosion as rhizoids grip on to the soil
They retain water to help the other plants
What are Phylum Pterophyta?
Where do Pterophyta live?
What type of tissue do they not have?
Size?
What do they rely on for fertilization?
Ferns
Live in damp, dark areas
Possess vascular tissue (they are vascular plants). They have xylem and phloem
Taller in comparison to mosses
Rely on water for fertilization
What are gymnosperms?
Do gymnosperms have seeds?
Do they produces flowers?
Consist of four phyla:
non flowering plants
“naked” seeds -not enclosed by ovaries. In other words, they do not produce flowers. not protected by the ovary
NO- cones
Ø Cycadophyta(cycads)
Ø Gingkophyta(one living species:
Ginkgo biloba)
Ø Gnetophyta
Ø Coniferophyta (conifers, such as pine, fir, and redwood)
Phylum Cycadophyta
Phylum Ginkgophyta
Ø Individuals have large cones and palm-like leaves
Ø Relatively few species exist today
This phylum consists of a single living species, Ginkgo biloba (or maidenhair tree)
It has a high tolerance to air
pollution and is a popular
ornamental tree
Leaves often used for medicinal
purposes (marketed for cognitive
function)
Phylum
Coniferophyta
By far the
largest phylum of
the gymnosperms
Most conifers
are evergreens
Douglas fir
What are angiosperms?
Are they common?
How are angiosperms classified?
The name comes from
the
Where does fruit come from
Angiosperms are seed plants with reproductive
structures called flowers and fruits
Most widespread and diverse of all plants.
in a single phylum, Anthophyta
Greek anthos, flower
the wall of the ovary, think apple
