Laboratory 4: Lycopodiophyta & Monilophyta

Flashcards covering key vocabulary from the laboratory notes on Lycopodiophyta and Monilophyta.

Homosporous

Plants that produce only one kind of spore.

Heterosporous

Plants that produce two types of spores: microspores and megaspores.

Sporophyte

The diploid phase of the plant life cycle, which produces spores.

Gametophyte

The haploid phase of the plant life cycle, which produces gametes.

Strobilus

A cluster of sporangia, found in some plants.

Spores

Reproductive units of certain plants, capable of developing into a new organism.

Microsporangium

A structure that produces microspores, leading to male gametophytes.

Megasporangium

A structure that produces megaspores, leading to female gametophytes.

Exosporic

Referring to gametophytes that develop and emerge from the spore wall.

Endosporic

Referring to gametophytes that develop within the spore wall.

Pterophyte

An outdated term formerly used to refer to ferns and their relatives.

Eusporangiate

Sporangia arising from multiple epidermal cells, characteristic of some ferns.

Leptosporangiate

Sporangia that arise from a single epidermal cell, typical of true ferns.

Sori

Clusters of sporangia on the underside of fern leaves.

Indusium

A membranous structure covering sorus in some ferns.

Prothallus

A free-living gametophyte of ferns.

Rhizome

An underground stem that produces roots and shoots.

Microphyll

Leaves with a single vascular trace, characteristic of lycopods.

Megaphyll

Broad leaves with multiple vascular traces, typical of ferns.