(Arisaema triphyllum) Arum family
Flowers - Minute, greenish yellow, clustered on the lower part of
a smooth, club-shaped, slender spadix within a green and maroon
or whitish-striped spathe that curves in a broad-pointed flap
above it. Leaves: 3-foliate, usually overtopping the spathe,
their slender
petioles 9 to 30 in. high, or as tall as the scape
that rises from an acrid corm. Fruit: Smooth, shining red berries
clustered on the thickened club.
Preferred Habitat - Moist woodland and thickets.
Flowering Season - April-June.
Distribution - Nova Scotia westward to Minnesota, and southward
to the Gulf States.
A jolly looking preacher is Jack, standing erect in his
particolored pulpit with a sounding-board over his head; but he
is a gay deceiver, a wolf in sheep's clothing,, literally a
"brother to dragons," an arrant upstart, an ingrate, a murderer
of innocent benefactors! "Female botanizing classes pounce upon
it as they would upon a pious young clergyman," complains Mr.
Ellwanger. A poor relation of the stately calla lily one knows
Jack to be at a glance, her lovely white robe corresponding to
his striped pulpit, her bright yellow spadix to his sleek
reverence. In the damp woodlands where his pulpit is erected
beneath leafy cathedral arches, minute flies or gnats, recently
emerged from maggots in mushrooms, toadstools, or decaying logs,
form the main part of his congregation.
Now, to drop the clerical simile, let us peep within the
sheathing spathe, or, better still, strip it off altogether. Dr.
Torrey states that the dark-striped spathes are the fertile
plants, those with green and whitish lines, sterile. Within are
smooth, glossy columns, and near the base of each we shall find
the true flowers, minute affairs, some staminate; others, on
distinct plants, pistillate, the berry bearers; or rarely both
male and female florets seated on the same club, as if Jack's
elaborate plan to prevent self-fertilization were not yet
complete. Plants may be detected in process of evolution toward
their ideals: just as nations and men are. Doubtless, when Jack's
mechanism is perfected, his guilt will disappear. A little way
above the florets the club enlarges abruptly, forming a
projecting ledge that effectually closes the avenue of escape for
many a guileless victim. A fungus gnat, enticed perhaps by the
striped house of refuge from cold spring winds, and with a
prospect of food below, enters and slides down the inside walls
or the slippery colored column: in either case descent is very
easy; it is the return that is made so difficult, if not
impossible, for the tiny visitors. Squeezing past the projecting
ledge, the gnat finds himself in a roomy apartment whose floor -
the bottom of the pulpit - is dusted over with fine pollen; that
is, if he is among staminate flowers already mature. To get some
of that pollen, with which the gnat presently covers himself,
transferred to the minute pistillate florets waiting for it in a
distant chamber is, of course, Jack's whole aim in enticing
visitors within his polished walls; but what means are provided
for their escape? Their efforts to crawl upward over the slippery
surface only land them weak and discouraged where they started.
The projecting ledge overhead prevents them from using their
wings; the passage between the ledge and the spathe is far too
narrow to permit flight. Now, if a gnat be persevering, he will
presently discover a gap in the flap where the spathe folds
together in front, and through this tiny opening he makes his
escape, only to enter another pulpit, like the trusted, but too
trusting, messenger he is, and leave some of the vitalizing
pollen on the fertile florets awaiting his coming.
But suppose the fly, small as he is, is too large to work his way
out through the flap, or too bewildered or stupid to find the
opening, or too exhausted after his futile efforts to get out
through the overhead route to persevere, or too weak with hunger
in case of long detention in a pistillate trap where no pollen
is, what then? Open a dozen of Jack's pulpits, and in several, at
least, dead victims will be found - pathetic little corpses
sacrificed to the imperfection of his executive system. Had the
flies entered mature spathes, whose walls had spread outward and
away from the polished column, flight through the overhead route
might have been possible. However glad we may be to make every
due allowance for this sacrifice of the higher life to the lower,
as only a temporary imperfection of mechanism incidental to the
plant's higher development, Jacks present cruelty shocks us no
less. Or, it may be, he will become insectivorous like the
pitcher plant in time. He comes from a rascally family, anyhow.
(See cuckoo pint.)
In June and July the thick-set club, studded over with bright
berries, becomes conspicuous, to attract hungry woodland rovers
in the hope that the seeds will be dropped far from the parent
plant. The Indians used to boil the berries for food. The
farinaceous root (corm) they likewise boiled or dried to extract
the stinging, blistering juice, leaving an edible little
"turnip," however insipid and starchy.
The GREEN DRAGON, or DRAGON-ROOT (A. Dracontium), to which Jack
is brother, is found in similar situations or beside streams in
wet, shady ground, and sends up a narrow greenish or whitish
tapering spathe, one or two inches long, enwrapping a slender,
pointed spadix, that projects sometimes seven inches beyond its
tip. Within, tiny pistillate florets are seated around the base,
while on the staminate plants the inflorescence extends higher. A
large, solitary, dark green leaf, divided into from five to
seventeen oblong, pointed segments, spreads above. Large ovoid
heads of reddish-orange berries are the plant's most conspicuous
feature.
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Next: SKUNK OR SWAMP CABBAGE
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