Figure 2. Frequency distributions of the area of occupancy (number of grid cells occupied) and total species number (n) for (a) the complete AFE atlas (n = 3773), (b) the complete Hultén & Fries atlas (n = 2049), the intersection of species co-occurring in (c) AFE (n = 601) or (d) the Hultén & Fries atlas (n = 601), species exclusive to (e) AFE (n = 3172) or (f) the Hultén & Fries atlas (n = 1448).