MOSS RECOGNITION

PHYLUM BRYOPHYTA1. Find the living and preserved mosses on demonstration. Be able to recognize anddistinguish between the following:a. Bryum:b. Dicranum:c. Funaria:d. Hypnum:e. Mnium:f. Polytrichum:g. Sphagnum:2. I have protonemata slides for some of them. Can you distinguish between theirprotonemata, too?

3.a.Find the preserved Sphagnum that bear archegonia and sporophytes. Add asporophyte to the drawing below and label the gametophyte, pseudopodium, andsporophyte.3.b.3.c.Indicate the ploidies of each of the structures in the drawing above.Carefully examine the Sphagnum sporophyte slide and find the operculum,sporogenous tissue (or spores), capsule, foot, and pseudopodium.

4.a.Look at your slide of a Mnium antheridial section. Add antheridia, developingsperm, and paraphyses to the drawing below.4.b.How is the Mnium antheridiophore similar to that of Marchantia?

4.c.4.d.Find archegonia in the Mnium archegonia longitudinal section.How does the Mnium archegoniophore differ from that of Marchantia?4.e.Now, examine a median longitudinal section of a Mnium capsule and addsporogenous tissue and columella to the drawing below. Add a 1mm size bar.4.f.Label all of the parts in the drawing above and indicate the ploidy of each one.