Wild Flowers: An Aid to Knowledge of Our Wild Flowers and Their Insect VisitorsBlanchan, Neltje
Science
Wild Flowers: An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors
Blanchan, Neltje
Wild flowers -- North America
Flowers - Purplish pink, 1 in. long, 3 to 15 around a long, loose
spike. Sepals and petals similar, oval, acute; the lip on upper
side of flower is broad at the summit, tapering into a claw,
flexible as if hinged, densely bearded on its face with white,
yellow, and magenta hairs (Calopogon = beautiful beard). Column
below lip (ovary not twisted in this exceptional case); sticky
stigma at summit of column, and just below it a 2-celled anther,
each cell containing 2 pollen masses, the grain lightly connected
by threads. Scape: 1 to 1 1/2 ft. high, slender, naked. Leaf:
Solitary, long, grass-like, from a round bulb arising from bulb
of previous year.
Preferred Habitat - Swamps, cranberry bogs, and low meadows.
Flowering Season - June-July.
Distribution - Newfoundland to Florida, and westward to the
Mississippi.
Fortunately this lovely orchid, one of the most interesting of
its highly organized family, is far from rare, and where we find
the rose pogonia and other bog-loving relatives growing, the
calopogon usually outnumbers them all. Limodorum translated reads
meadow-gift; but we find the flower less frequently in grassy
places than those who have waded into its favorite haunts could
wish.
Owing to the crested lip being oddly situated on the upper part
of the flower, which appears to be growing upside down in
consequence, one might suppose a visiting insect would not choose
to alight on it. The pretty club-shaped, vari-colored hairs,
which he may mistake for stamens, and which keep his feet from
slipping, irresistibly invite him there, however, when, presto!
down drops the fringed lip with startling suddenness. Of course,
the bee strikes his back against the column when he falls. Now,
there are two slightly upturned little wings on either side of
the column, which keep his body from slipping off at either side
and necessitate its exit from the end where the stigma smears it
with viscid matter. The pressure of the insect on this part
starts the pollen masses from their pocket just below; and as the
bee slides off the end of the column, the exposed, cobwebby
threads to which the pollen grains are attached cling to his
sticky body. The sticky substance instantly hardening, the pollen
masses, which are drawn out from their pocket as he escapes, are
cemented to his abdomen in the precise spot where they must
strike against the stigma of the next calopogon he tumbles in;
hence cross-fertilization results. What recompense does the bee
get for such rough handling? None at all, so far as is known. The
flower, which secretes no nectar, is doubtless one of those gay
deceivers that Sprengel named "Scheinsaftblumen," only it leads
its visitors to look for pollen instead of nectar, on the
supposition that the club-shaped hairs on the crests are stamens.
The wonder is that the intelligent little bees (a species of
Andrenidae), which chiefly are its Victims, have not yet learned
to boycott it.
Public-domain text, read in full here on John Shaqi.
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