Uvjeti korištenja
Bosnia and Herzegovina is a reservoir of various endemic plants. Croatian post Mostar by issuing commemorative postage stamps „Flora 2015” presents two sorts, the Arum Orientale subsp. Orientale and Woodland Crocus or Tommasini's Crocus. The Arum Orientale subsp. Orientale (Arum petteri) is specifically known by its black (dark-brown) overlaying leaf that forms a specific tube in which there is a light brown cob in the center. The blossom is located on a thicker stem that in the beginning grows surrounded by a leaf. On the same stem female blossoms grow, that are located at the bottom of the cob, and the male blossoms are located above them. In this way, the Arum's flower is adapted to pollination with the help of insects. The Croatian Post Ltd. Mostar has issued two commemorative postage stamps in a sheet of 10 stamps, a postmark and First Day Cover (FDC)
