Lab Exercise 15 - Bryophytes and Seedless Vascular Plants

This page last updated May 20, 2005

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In this week's lab, we did the following exercises in the lab manual:

Ex 15.1A, 15.2A, B, and C

For each organism, you were required to be able to identify the organism and place it in the appropriate phylum

You also need to understand the main steps in the lifecycle of each phylum

Note - the microscope that I used to take these pictures had a minimum magnification of 100x, so some of these larger structures may look different because you were looking at 40x in lab.

This picture shows a moss with the sporophyte sticking out of the gametophyte.

Phylum: Bryophyta

This picture shows a moss antheridium at 100x

Phylum: Bryophyta

This (rather blurry) picture shows a moss archegonium at 100x.

Phylum: Bryophyta

This picture shows the stem of a moss gametophyte in cross section at 100x.

Phylum: Bryophyta

This shows the antheridiophore of Marchantia at 100x.

Phylum: Hepatophyta

This shows the archegoniophore of Marchantia at 250x

Phylum: Hepatophyta

Club moss

Phylum: Lycophyta

Genus: Lycopodium

This slide shows the strobilus of a club moss at 100x.

Phylum: Lycophyta

Genus: Lycopodium

This shows the strobilus of another club moss at 100x.

Phylum: Lycophyta

Genus: Selaginella

Picture of fern leaves from the underside, showing the sori.

Phylum: Pterophyta

This picture shows fern sori at 100x.

Phylum: Pterophyta

This picture shows a fern gametophyte at 100x (at least as much as I could make fit on the screen).

Phylum: Pterophyta

This shows a portion of a fern gametophyte at 100x with a sporophyte growing out of it (the thick green line, going up to the right is the sporophyte).

Phylum: Pterophyta

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