The equation for determining the stomatal index (1) is, 1=S/E+Sx100. Where S=the number of stomata, E=total number of epidermal cells in a unit area of the leaf. Oats contain 54,000 per one square inch, but cucumber contains 428,000 per square inch.
Iceland is an island in the Atlantic Ocean, located near the Arctic Circle, between Greenland and Norway. An island of 103.000 km2 (40,000 square miles), it is about the same size as Hungary and Portugal, or Kentucky and Virginia. Iceland is the second largest island in Europe, following Great Britain, and the 18th largest island in the world.
This to-scale map shows a size comparison of Iceland (103,000 sq km) and United States (9,826,675 sq km). Iceland is a sovereign country in Europe, with a total land area of approximately 103,000 sq km. Settled by Norwegian and Celtic (Scottish and Irish) immigrants during the late 9th and 10th centuries A.D., Iceland boasts the world's oldest functioning legislative assembly, the Althing, established in 930.