Monthly Archives: March 2011

Paintbrush Seed

The last in this short series of scanning electron micrographs, circa 1981, is a seed of Castilleja chromosa, “Indian paintbrush,” from the Bodie Hills in Mono County. The seed is encased in a honeycomb of vessel cells, which at this … Continue reading

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Pappus

What appear to be single flowers among plants in the Sunflower Family (Asteraceae)are actually heads containing often dozens to hundreds of separate small flowers. Each flower develops into a 1-seeded fruit, and in most species the top of the seed … Continue reading

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Pollen

Another image from the scanning electron microscopy class I took as a grad student at Humboldt State back around 1981. I’ve lost track of the species, but these are grains of pollen. Tim Messick Photography • Graphics Copyright © 2011 … Continue reading

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