History of botany scope of the subject as technology has opened up new techniques and areas of study. Modern molecular systematics, for example, entails the principles and techniques of taxonomy, molecular biology, computer science and more. Within botany there are a number of sub-disciplines that focus on particular plant groups, each with their own range of related studies (anatomy, morphology etc.). Included here are: phycology (algae), pteridology (ferns), bryology (mosses and liverworts) and palaeobotany (fossil plants) and their histories are treated elsewhere (see side bar). To this list can be added mycology, the study of fungi, which were once treated as plants, but
Kingdom of Plants 3D "Galapagos 3D", broadcast in 2013. A companion iPad app to the series was released on 23 May 2012, using video and imagery from the series to provide a virtual tour of the Royal Botanic Gardens, Kew. Of the app, Attenborough commented "You can swipe your finger across the tablet to make a plant flower and, not only that, put it back again; it’s quite fun." Kingdom of Plants 3D Kingdom of Plants 3D is a natural history documentary series written and presented by David Attenborough, which explores the world of plants. It was filmed over the course of a year