Growing along the edge of the rail trail.

To date this is the only D. punctatus I have seen at this location (and in all of Waterloo Region)

snow dump... NaCl

☺️

Found in clay plain deciduous swamp with abundant Freeman's maple. Leaves large, up to 45-50cm long. Leaflets pubescent beneath with petiolules up to 10mm long and some leaflets essentially entire

Sandstone crack on northern tier island in Apostle Islands National Lakeshore. Location obscured.

I spoke with the owner of this truck, he was very proud of his epivehicular fern colony. Apparently at one time it had been larger but someone stole a portion of the plant.

only kind in the neighborhood

Very vague location in eastern Chatham-Kent marked as this extremely rare species is on private property that I had permission to access.

open aspen woods on sand; image scanned from a 35 mm slide.

Abundant in calcareous seepage area

With Wasyl Bakowsky

found as epibionts on a copepod.
More on this here:
http://www.plingfactory.de/Science/Atlas/KennkartenProtista/01e-protista/e-Ciliata/e-source/Trichodina%20domerguei%20megamicronuleata.html

Green leaves in winter

~20 clumps along moist shoreline with exposed bedrock and sand.

Large (thousands of plants) vegetative colony with a few fruiting culms in floodplain.

See additional photos for spikes and achenes. First record for Niagara Region. Specimen # 09600 (NHIC).

achene angles knobby, long pistillate spikes