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With an estimated temperature increase of about 3.6°F in the next few years, the number of invasive species, particularly the Didemnum vexillum and Botrylloides violaceus, could double, according to UNH research released back in February.

At 18, deciding that the study of flags deserved its own name, he coined the term vexillology, combining the Latin word for flag, “vexillum,” with the Greek suffix meaning “the study of.”

The vexillum of the Romans was a standard composed of a square piece of cloth fastened to a cross bar at the top of a spear, sometimes with a fringe all round as shown in Fig.

The labarum, like the vexillum, had sometimes fringes with tassels or ribbons.

The original form was some fixed object such as we have seen on the Egyptian and Roman examples, and the vexillum and labarum were transitional forms.