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Rock fern, Cheilanthes austrotenuifolia Donald Hobern/Wikimedia, CC BY-SA One afternoon in the late 1970s, my colleague and fellow student Helen Quirk handed me a brown, shrivelled fern frond. It appeared to be dead, and was so dry that when I crushed it between my fingers it disintegrated into a powder. Author Doctor of Botany, The University of Melbourne We placed another piece on a petrie dish and added water. Almost immediately, the piece began to unfold and, as though in time-lapse photography, it appeared to re-green. Within a few hours it looked like a normal, delicate fern. This was my first encounter with a resurrection fern: remarkable plants that look dead and dry, but when provided with the right conditions – often just the addition of water – rapidly spring back to life.

Black mountainNew south walesAustralian capital territoryDonald hobern wikimediaHelen quirkProfessor carrick chambersUniversity of melbourneAncient historyBush firesகருப்பு மலைபுதியது தெற்கு வேல்ஸ்ஆஸ்திரேலிய மூலதனம் பிரதேசம்ஹெலன் க்யூர்க்ப்ரொஃபெஸர் கேரிக் அறைகள்பல்கலைக்கழகம் ஆஃப் மெல்போர்ன்பண்டைய வரலாறு