The violet (Viola) is a flowering plant from the family Violaceae with a distinctive and pleasant scent. It is widespread worldwide and currently has over 470 recognized species. It has a short stem on which flowering and leafing occur simultaneously. The flowers are bilaterally symmetrical, and their corolla consists of five petals. The flower colours range from purple, through various shades of blue, yellow, white, and cream. The flowers have ovules with three placentas. After flowering, fruit capsules are formed that burst. The seeds are nut-like and have strong embryos (early developmental stage), flat cotyledons (the first leaf of a plant that develops on the embryo shoot) and soft, fleshy, fatty endosperms (reserve nutrients in the seeds).The seeds are often spread by ants.
Croatian Post Ltd. Mostar has issued 2 commemorative postage stamps in a sheet of 8 stamps, a postmark and a first day cover (FDC). The stamps and accompanying materials can be purchased at HP Mostar post offices and online at www.epostshop.ba