The Friday lecture will cover many of the forest, meadow, and wetland habitats found in Berkshire County, discussing their physical and ecological features - topography, geology, soils, and moisture - as well as their characteristic plant assoctiations, including both common and rare plants. The Saturday field trip will take us to a variety of forested, open, and wetland habitats, and we will take a close look at the flora and features of each of them. We will also discuss impacts of invasive species, and possible changes to natural communities in response to climate change. We will travel by passenger van. Please dress for weather and bring a bagged lunch.