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Magnified 225X, this 2006 scanning electron microscopic (SEM) image depicted ultrastructural details on the surface of a dandelion clock, from a common dandelion, Taraxacum officinale. 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.
High Resolution: Click here for hi-resolution image (5.48 MB)
Content Providers(s):CDC/ Janice Haney Carr
Creation Date:2006
Photo Credit:Janice Haney Carr
CDC Organization
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.