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Recovery Strategy for the Engelmann's Quillwort (Isoetes engelmannii) in Canada (Proposed)


Appendix B: Glossary

Corm
a bulb like enlargement of an underground stem.

Diploid
a plant cell with two sets of chromosomes.

Endemic
native to a particular area.

Megaspore
the larger kind of spore produced in plants that produce two different kinds of spores; it germinates into an egg-producing gametophyte.

Microspore
the smaller kind of spore produced in plants that produce two different sizes of spores; it germinates into a sperm-producing gametophyte.

Papilla
minute blunt or rounded projections on a surface.

Sporangium
the chamber in which spores are produced.

Spore
the reproductive body in plants lacking true flowers and seeds.

Sporophyte
the stage in which spores are produced in plants that reproduce by alternation of generations.

Velum
a thin membranous covering or partition.

Vernalization
accelerating the growth of a plant by subjecting the seeds to low temperatures.