Stamens, Filaments and Anthers

Camas Germ, Filaments, and Anthers

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interactive photo labeling the camas plant parts

© 2004 VIAs Inc./Bob Gilman

Captain Lewis:

The stamens are perfect, six in number; the filaments each elevate an anther, near their base are flat on the inside and rounded on the outer terminate in a subulate point, are bowed or bent upwards, inserted on the inner side and on the base of the claws of the petals, below the germ, are equal both with rispect to themselves and the corolla, smooth & membraneous.
. . . the Anther is oblong, obtusely pointed, 2 horned or forked, at one end and furrowed longitudinally with four channels, the upper and lower of which seem almost to divide it into two loabs, incumbent patent, membranous, very short, naked, two valved and fertile with pollen, which last is of a yellow colour—. the anther in a few hours after the corolla unfoalds, bursts, discharges it's pollen and becomes very minute and shrivled; the above discription of the anther is therefore to be understood of it at the moment of it's first appearance.

Professor Reveal:

Lewis errs in his description of the anthers, suggesting they are "2 horned or forked." The anthers are versatile, meaning that the point of attachment of the filament is mid-length or centered along the length of the anther. Most anthers are basifixed, meaning that the filament is attached at the base of the anther. The terms "incumbent patent" allude to the angle of the anthers and filaments to one another, and it is each half of the anther (the two pieces on each side of the filament) that are "very short" and "naked." The anther is two lobed ("two loabs") and also two chambered ("two valved")


stamen—"The male organ of a flower, consisting of an anther and usually a filament."
anther—"The part of a stamen, consisting of one or usually two pollen sacs (and a connecting layer between them), which bears the pollen."
membranous—"Thin and flexible, like a membrane, as in an ordinary leaf, in contrast to . . . succulent."
naked—"Lacking various organs or appendages, in contrast to other forms in which these organs or appendages are present; e.g., a naked flower lacks a perianth."
incumbent—Lying, leaning, or resting on something else.
patent—Spreading open, expanded.
filament—"The stalk of a stamen, i.e., the part which supports the anther."

Supported in part by a grant from the Idaho Governor's Lewis and Clark Trail Committee