A to Z of Aotearoa is our regular segment where we choose topics that represent an iconic person, place or thing. This week we've arrived at 'S', and our focus is the now internationally recognised symbol of New Zealand, the Silver Fern. Jesse chats to Leon Perrie, curator of botany at Te Papa and co-author of the 'Identification Guide to the Ferns and Lycophytes of Aotearoa New Zealand' and designer Ben Clark (Ben is the son of Dave Clark, the designer of the first official All Blacks logo).