I am the State Botanist for the Maine Natural Areas Program and the president of the Josselyn Botanical Society (Maine's Botanical Society). Prior to this, I was an associate professor of Biology at Massachusetts College of Liberal Arts and was a consulting botanist in Maine. In addition to my professional work, I spend a lot of free time botanizing, as well as leading walks and doing surveys for local land trusts in south-central Maine. I study the genus Amelanchier (serviceberries) but have a broad interest in the regional flora as a whole.

You will notice that in a lot of photos I have purposely included my wedding ring for scale. The ring is exactly 5 mm in width and measurements using it for calibration (such as in ImageJ) are pretty accurate when the plant organ is in the same plane and/or close to the ring. If the object is at an oblique angle or away from my hand more than a centimeter I would recommend just using it as a rough guide.