Bio 1134 Lab practical 2: Plants pt 1

What plants belongs to the Division Marchantiophyta?

Liverworts

What are the key characteristics of Liverworts?

1) Simple, flattened, leaf-like thallus
2) Very simple branching pattern

What plants belongs to the Division Bryophyta?

True Mosses

What mosses are considered true mosses?

1) Peat Mosses (Sphagopsida)
2) Granite Mosses (Andreaeopsida)
3) True Mosses (Bryopsida)

What are the key characteristics of Moss?

1) Does not have true roots
2) Has stems and leaves
3) A non-flowering plant that produces spores

What plants belong to the Division Lycophyta?

Lycophytes

What are the key characteristics of Lycophytes?

1) Leaves have a single unbranched vein of vascular tissue
2) Seedless
3) Vascular

What classes are under the Division Lycophyta?

1) Lycopodiopsida
2) Selaginellopsida

What plants belong to the Class Lycopodiopsida?

Club Mosses

What are the key characteristics of club mosses?

1) Typically a low-growing terrestrial plant
2) Simple branching stem that spreads by rhizome
3) Has rudimentary roots
4) Small, scale-like leaves

What plants belong to the Class Selaginellopsida?

Spike Mosses

What are the key characteristics of spike mosses?

1) Branching rhizome
2) Most live in tropics, some live in dry environments
3) Produce leaves in four rows, two rows of small leaves above and two rows of large leaves below

What is the key characteristic of the Division Polypodiophyta?

1) All members produce megaphylls
2) Plants do not have true roots

What classes are under the Division Polypodiophyta?

1) Psilotopsida
2) Equisetopsida
3) Polypodiopsida

What are the key characteristics of the Class Psilotopsida?

1) Simple body
2) Has small scale-like leaves
3) Stem branches off into two smaller stems
4) No root, spreads by an underground rhizome
5) Distinctive sporangia borne in clusters of three on stem'
What plants belong to the Class Psilotopsida?

What are key characteristics of the Class Equisetopsida?

1) Perennials
2) Grow in moist areas and along waterways
3) Ridged stem
4) Small, scaly leaves at the joints of the segments

What plants belong to the Class Equisetopsida?

Horsetails

What are the key characteristics of the Class Polypodiopsida?

1) Typically grow horizontally as rhizomes
2) Young fronds form fiddleheads
3) Produce spores in sporangia on the undersurface of fronds
4) Particularly common in tropical areas

What plants belong to the Class Polypodiopsida?

True ferns

What are Spermatophytes?

Seed plants

What are the key characteristics of seed plants?

1) Seeds and pollen are produced in cones
2) Sperm cells are encased in pollen grains
3) Evolved due to seeds and pollen

What groups are classified under Spermatophytes?

1) Gymnosperms and Angiosperms

What are the key characteristics of Gymnosperms?

1) Seed-producing vascular plants
2) Seeds and pollens are produced in cones
3) All gymnosperms are woody perennials
4) Most are evergreen, some are deciduous

What divisions belong to Gymnosperms?

1) Pinophyta
2) Cycadophyta
3) Ginkgophyta

What are the key characteristics of the Division Pinophyta?

1) Produce evergreen, needle-like leaves
2) Leaves have a thick cuticle, sunken stomata, and modifications of the xylem
3) Male and female cones are produced on the same plant

What plants belong to the Division Pinophyta?

Conifers