Skidmore College: Plant Biology

Laboratory Slides
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Lab 9: Marchantia (liverwort) , moss, fern and fern allies--morphological features and life cycles (scroll down for photos)

Marchantia (liverwort) life cycle (scroll down)

Liverwort thallus

Marchantia gemma cup (both photos)

Marchantia archegoniophore

_Marchantia antheridiophore _____________________________________________________________________________

True moss life cycle (scroll down)

s Moss antheridia

Moss antheridial head

Moss archegonia

___Moss sporophyte

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Ferns and their life cycle (scroll down)

The gametophyte phase

Fern prothallus Fern Prothallus with antheridia

Fern Prothallus with archegonia Fern sperm cell

Fern prothallus with young sporophyte>>> Yields new Sporophyte

The sporophyte phase

Fern fiddleheadsFern leaf with sori

Sori on fern leaf Fern sporangia

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Fern allies: Equisetum, Lycopodium, Selaginella (scroll down)

Equiseum (horsetail) strobilusStrobilus

Lycopodium

Strobilus-close-up

Selaginella with strobilus