My Studio NeighborsGibson, W. Hamilton (William Hamilton)
History
My Studio Neighbors
Gibson, W. Hamilton (William Hamilton)
Natural history; Natural history -- Outdoor books
body being sufficient to fertilize all the stigmas in the cluster, until
a new supply is obtained from the pollen-bearing blossoms above. And
thus he continues his rounds.
[Illustration: Fig. 4]
The sage is a representative of the large botanical order known as the
Mint family, the labiates, or gaping two-lipped flowers, the arched hood
here answering to the upper lip, the spreading base forming the lower
lip, which is usually designed as a convenient threshold for the insects
while sipping the nectar deep within the tube. This mechanism of the
sage is but one of many curious and various contrivances in the Mint
family, all designed for the same end, the intercrossing of the flowers.
While each family of plants is apt to favor some particular general
plan, the modifications in the various species seem almost without
limit.
Let us now look at the Heath family. The family of the heath, cranberry,
pyrola, Andromeda, and mountain-laurel--how do these blossoms welcome
their insect friends? This group is particularly distinguished by the
unusual exception in the form of its anthers, which open by pores at
their tips, instead of the ordinary side fissures. Two or three forms of
these anthers are shown in my row of stamens (Fig. 1).
Seen thus in their detached condition, how incomprehensible and
grotesque do they appear! And yet, when viewed at home, in their
bell-shaped corollas, their hospitable expression and greeting are seen
to be quite as expressive and rational as those of the sage. Take the
mountain-laurel, for instance; what a singular exhibition is this which
we may observe on any twilight evening in the laurel copse, the dense
clusters of pink-white bloom waited upon by soft-winged fluttering
moths, and ever and anon celebrating its cordial spirit by a mimic
display of pyrotechnics as the anthers hurl aloft their tiny showers of
pollen!
Every one is familiar with the curious construction of this flower, with
its ten radiating stamens, each with its anther snugly tucked away in a
pouch at the rim of its saucer-shaped corolla. Thus they appear in the
freshly opened flower, and thus will they remain and wither if the
flower is brought indoors and placed in a vase upon our mantel. Why?
Because the hope of the blossom's life is not fulfilled in these
artificial conditions; its natural counterpart, the insect, has failed
to respond to its summons.
[Illustration]
But the twilight cluster in the woods may tell us a pretty story.
Here a tiny moth hovers above the tempting chalice, and now settles upon
it with eager tongue extended for the nectar at its centre. What an
immediate and expressive welcome! No sooner has this little feathery
body touched the filaments than the eager anthers are released from
their pockets, and, springing inwards, clasp their little visitor, at
the same time decorating him with their compliments of webby pollen (A,
Fig. 5).
Public-domain text, read in full here on John Shaqi.
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