Linda Grashoff's Photography Adventures

Posts tagged “leaf

Iridescence along the River 8

August 7, 2018

Iridescence along the River 6

August 5, 2018

Crossing the River

July 29, 2018

Two weeks ago I made my way to the Vermilion River, something I do less often than I used to now that we are living back in town. The river still charms me, I’m happy to say, and I was in special good luck July 14 because the river’s water level was low and its banks embellished with iridescent patches of Leptothrix discophora. When the water is low, I get to wade across to the other side, where I usually can find more colonies of my favorite bacterium (photos to come). The wade itself is a treat, though, and I love seeing the ripples filled with sunshine at my feet.

Back to the Garden 7

November 11, 2017

August 2017 Shale Shore 2

October 1, 2017

August 2017 Shale Shore 1

September 30, 2017

The shale along the shore of the Vermilion River fascinates me no matter how many times I see and photograph it. It’s especially appealing when decorated with leaves.


Evidence of Sulfur Bacteria in the Vermilion River

October 21, 2014

I saw something at the edge of the river Saturday, September 27, that I’d never seen before. Checking my hunch with Norrie Robbins, my knowledge source for all things microbial, I learned that this white threadlike formation is evidence of sulfur-oxidizing bacteria. The black stuff around the edges shows the presence of sulfur-reducing bacteria. Since the shale in this area is replete with pyrite (fool’s gold), and pyrite is made of iron and sulfur, it should not have been a surprise.

09272014 Schoepfle Garden-88

Other Iron Bacteria of Late September—6

October 20, 2014

09272014 Schoepfle Garden-265

Other Iron Bacteria of Late September—5

October 19, 2014

09272014 Schoepfle Garden-257

Rocky Vermilion Shoreline 11

September 17, 2014

09142014 Schoepfle Garden-59