Megaspore: the larger of two types of spores when a species produces
Megasporangia: receptacle in which the megaspores are contained.
Microspore: the smaller of two types of spores when a species
produces two types.
Microsporangia: receptacle in which the microspores are
Node: a joint.
Oblanceolate: lanceolate with the widest portion just above the
Obovate: nearly round with widest part just above the middle.
Ovate-lanceolate: drawn to a fine point from a rather wide portion
just above the middle.
Petiole: the leaf stalk.
Pinnae: the main division of a fern leaf or frond.
Pinnate: with leaflets arr. each side of a common stalk.
Pinnately compound: with the pinnae arranged in two rows upon the
Pinnule: a leaflet or segment of a pinna; a secondary division of a
Pubescent: hairy or fuzzy.
Recurved: curved backward.
Rhizome: a horizontal, underground stem.
Serrate: saw-toothed with teeth large and conspicuous.
Serrulate: saw-toothed with teeth small.
Sessile: having no stalk.
Sorus: a group of sporangia; one of the numerous brown "dots" upon
the under side of a frond which bears the sporangia which in turn bear
the spores. See page
Spore: the non-sexual fern fruit which gives rise to the gametophyte.
See pages 4 and 5.
Sporophyte: the customary fern plant; the non-sexual unit in the life
cycle of the fern which produces the spores. See pages