Filament.
Kinds.—Filiform, subulate, dilated, petaloid, bidentate.
Anther.
Parts.—Lobes (thecæ) and connective.
Adnation.—Innate, anther firm on summit of filament.
Adnate, anther attached by its whole length to filament.
Extrórse, facing the petals.
Intrórse, facing the pistils.
Versatile, attached near the middle.
Dehiscence.—Longitudinal, opening lengthwise.
Transverse, opening crosswise.
Porous, opening by terminal holes.
Valved, opening by valves or doors.