Patrick Blanc observing the sunken sori of Phymatosorus membranifolius, Sekar Langit waterfall, Magelang, Java, May 2018
Patrick Blanc showing the upper frond surface of Phymatosorus membranifolius with the deeply raised protuberances enclosing the sunken sori, Sekar Langit waterfall, Magelang, Java, May 2018
Patrick Blanc observing a dense population of the small Tectaria zeylanica on a vertical earth bank, a form with entire fronds, Sekar Langit waterfall, Magelang, Java, May 2018
Patrick Blanc behind a clump of Gahnia javanica growing around solfatars, Dieng, Wonosobo, Java, May 2018
Patrick Blanc much intrigued by the dark brown inflorescences of Gahnia javanica, Dieng, Wonosobo, Java, May 2018
Patrick Blanc at a cave entrance, the vertical limestone walls being covered by green iridescent Hepatics and Mosses, Dieng, Wonosobo, Java, May 2018