Public Domain Picture: Under a moderate magnification of 225x, this 2006 scanning electron micrograph (SEM) depicted details of the morphologic surface characteris

By: CDC/ Janice Carr, Courtesy: Public Health Image Library

Views: 496 | Downloads: 1

Under a moderate magnification of 225x, this 2006 scanning electron micrograph (SEM) depicted details of the morphologic surface characteris

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Title:

Under a moderate magnification of 225x, this 2006 scanning electron micrograph (SEM) depicted details of the morphologic surface characteris

Description:

Under a moderate magnification of 225x, this 2006 scanning electron micrograph (SEM) depicted details of the morphologic surface characteristics of a "dandelion clock", from a Common Dandelion, Taraxacum officinale plant. The "clock" is the filamentous "puffball" of seeds arranged so as to be easily dispersed by the wind, or the breath of a curious child.In this field of view the remnants of a seed attachment is visible as a small nub protruding from a small papule. It is from these nub-like points that the "parachute"-equipped seeds detach, and are blown away, sometime over a distance of miles. Note that this is the second in a series of PHIL images, 8791-8796, in which the magnification is increased, thereby, providing greater and greater morphologic detail of the point of the developing seed attachment.

Creator:

CDC/ Janice Carr

Source:

Public Health Image Library

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496

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Date Added:

November 17, 2012

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Size: 700 x 475
File size: 66.6 KB
File type: jpg

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Produced by United States Government

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Public Health Image Library

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