Lecture+16+Winter+2012

Lecture+16+Winter+2012 - Lecture 16: Vascular Plants I...

Info iconThis preview shows pages 1–13. Sign up to view the full content.

View Full Document Right Arrow Icon
• Limitations in non- vascular plants • Vascular plant synapomorphies – Sporophyte Dominant life cycle • example: Fern Life Cycle – Vascular Tissue • xylem • phloem • Early clades of vascular plants – Rhyniophytes – Lycophytes (club mosses, etc) – Pteridophytes (Ferns and relatives) Lecture 16: Vascular Plants I
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
A Moss Life Cycle
Background image of page 2
Hornwort Life Cycle
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Moss gametangia
Background image of page 4
Moss capsule http://phobos.ramapo.edu/ ~spetro/Slides/ polytrichum_capsule.jpg Gametangia and sporophytes in “Bryophytes” have sterile jackets of cells!!
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Clicker Question
Background image of page 6
Which of the following structures is diploid? A. Moss spore B. Liverwort rhizoid C. Cell in jacket of antheridium D. Cell in jacket of sporangium Clicker Question
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Clicker Question
Background image of page 8
The “Bryophytes” have a life cycle characterized by a dominant gametophytic generation: A. False B. True Clicker Question
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Clicker question
Background image of page 10
We conclude that the first land plants probably had a gametophyte dominant, alternation of generations life cycle because this same type of life cycle is present in : A. All land plants B . Chara , the land-plant ancestor C. Chara, the first land-plant D. Moss and fern E. Moss, liverworts, and hornworts Clicker question
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Bryophyte life cycle traits! • Gametophyte (haploid) is dominant, independent
Background image of page 12
Image of page 13
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 32

Lecture+16+Winter+2012 - Lecture 16: Vascular Plants I...

This preview shows document pages 1 - 13. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online