Geobulletin alpha

The Monthly Fern: Water Clover & its odd spores 

"It is worth clarifying that these plants are not clovers." (Photo by Bill Dodd). For July, South Dakota's fern-of-the-month is the Hairy Water Clover, Marsilea vestita. Among our ferns it's quite the oddball—in habitat, behavior, leaves, and especially the spores. They suggest that one of its ancestors was the evolutionary start of seed plants! Water Clovers grow nearly worldwide. On the order of 45 to 65 species are recognized (experts disagree on number), of which 5 are native to [...]

Keck (SEAK25) Week 2: Dendrochronological Methods 

Guest Bloggers SEAK25 (Keck – Southeast Alaska 2025) – Dendrochronological methods are a key part to our research team’s success. While analyzing and drawing conclusions from data is essential, it is equally as important to ensure the proper collection, preparation, … Continue reading →