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
Lacking perfume only to be a perfectly satisfying flower, the
COMMON, PURPLE, MEADOW, or HOODED BLUE VIOLET (V. obliqua; V.
cucullata of Gray) has nevertheless established itself in the
hearts of the people from the Arctic to the Gulf as no
sweet-scented, showy, hothouse exotic has ever done. Royal in
color as in lavish profusion, it blossoms everywhere - in woods,
waysides, meadows, and marshes, but always in finer form in cool,
shady dells; with longer flowering scapes in meadow bogs; and
with longer leaves than wide in swampy woodlands. The
heart-shaped, saw-edged leaves, folded toward the center when
newly put forth, and the five-petalled, bluish-purple,
golden-hearted blossom are too familiar for more detailed
description. From the three-cornered stars of the elastic
capsules, the seeds are scattered abroad.
Beards on the spurred lower petal and the two side petals give
the bees a foothold when they turn head downward, as some must,
to suck nectar. This attitude enables them to receive the pollen
dusted on their abdomens, when they jar the flower, at a point
nearest their pollen-collecting hairs. It is also an economical
advantage to the flower which can sift the pollen downward on the
bee instead of exposing it to the pollen-eating interlopers.
Among the latter may be classed the bumblebees and butterflies
whose long lips and tongues pilfer ad libitum. "For the proper
visitors of the bearded violets," says Professor Robertson, "we
must look to the small bees, among which the Osmias are the most
important."
When science was younger and hair splitting an uncommon
indulgence of botanists, the EARLY BLUE VIOLET (Viola palmata)
was thought to be simply a variety of the common purple violet,
whose heart-shaped leaves frequently show a tendency to divide
into lobes. But the early blue violet, however roundish or
heart-shaped its early leaves may be, has the later ones
variously divided into from three to thirteen lobes, often almost
as much cut on the sides as the leaves of the bird's-foot violet.
In dry soil, chiefly in the woods, this violet may be found from
Southern Canada westward to Minnesota, and south to northern
boundaries of the Gulf States. Only its side petals are bearded
to form footrests for the insects that search for the deeply
secreted nectar. Many butterflies visit this flower. On entering
it a bee must first touch the stigma before any fresh golden
pollen is released from the anther cone, and cross-fertilization
naturally results.
Public-domain text, read in full here on John Shaqi.
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