Taxon groups: Ulvobinta (Caulerpa), Charophyta (chara), Liverworts, Mosses, Club

Question

Taxon groups: Ulvobinta (Caulerpa), Charophyta (chara), Liverworts, Mosses, Club Mosses, Horsetails, Ferns

SUMMARY ACTIVITY: 1. Observe the two green algae examples (Caulerpa and Chara) and examples of the five types of early land plants (liverworts, club mosses, mosses, horsetails, ferns) along with the associated material on display throughout the lab. Using a combination of observation live specimens, prepared slides, reference to labeled diagram and supplemental information from your text book, create a data matrix table (with the seven taxa in rows and the following 11 characters in columns: Characters to include and their options: a) Vascular tissue- (no, yes) b) Substrate structure- (holdfast, rhizoid, root) c) Stalk structure- (stipe, stem) d) Photosynthetic structure- (thallus, microphill, leaf) e) Plasmodesmata- (no, yes) f) Retention of egg on parent- (no, yes) g) Retention of embryo on parent- (no, yes) h) Waxy cuticle- (no, yes) i) Pores- (no, yes) Dominant life cycle stage- (gametophyte, sporophyte, both)

Explanation / Answer

Substrate

Structure

Stalk

Structure

Retention

Of Egg

Retention

Of Embryo

WAXY

Cuticle

Plant Vascular Tissue

Substrate

Structure

Stalk

Structure

Photosynthesis Plasmodesmata

Retention

Of Egg

Retention

Of Embryo

WAXY

Cuticle

Pores Stomata Life cycle Ulvobinta No RHIZOID Stem like Thallus Yes No No Yes Yes Yes Gametophyte Charophyta No Rhizoid Stem like Leafoids Yes No No Yes Yes Yes Gametophyte Liverworts No Rhizome Stem like leaves Yes Yes No Yes Yes Yes Gametophyte Mosses No Rhizoid Stem like leaves Yes No No Yes Yes Yes Gametophyte Club mosses No Rhizoid Stem like Thallus Yes No No Yes Yes Yes Gametophyte Horsetails No Rhizoid Stem like Thallus Yes No No Yes Yes Yes Gametophyte Ferns No Rhizoid Stem like Leaves Yes Yes No Yes Yes Yes Both

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