When the government of Sri Lanka published the National Red List of threatened plants in 2020, my eyebrows shot up. We’ve all become accustomed, after all, to the grim news these reports periodically bring us. But here it was, in black and white: 128 species, not having been recorded in surveys conducted during the past century, were assessed as “possibly extinct,” while a further two each were assessed as “extinct” and “extinct in the wild.” This was good news indeed.
Just eight years earlier, the 2012 National Red List had assessed fully 177 species as possibly extinct, together with five extinct and two others extinct in the wild. Had 49 extinct species — species no one had recorded in more than a century — really been rediscovered since 2012? Clearly, someone had blundered. Not stopping to put the book down, I called up Siril Wijesundara at the National Institute of Fundamental Studies (NIFS) in Kandy and the chairman of the committee of experts who conducted the assessment.
“Siril,” I said, “there’s a mistake in the number of extinct flowering plants in the new Red List.”
He laughed. “I thought that would get your attention,” he said. “But there’s no mistake. Himesh has rediscovered three of the officially extinct ones as well.”
“What’s Himesh?” I asked, thinking it to be the acronym of the institution that had magically rediscovered these species, which, after all, all previous surveys had missed.
“Himesh is an amazing guy,” Wijesundara said. “He spends his life searching for plants.”
To date, [Himesh] Jayasinghe has rediscovered more than 100 of the 177 possibly extinct species as well as three of the five extinct species and both species previously considered extinct in the wild. And the good news doesn’t stop there. He has up to now found some 210 species that have never been reported from Sri Lanka. About 50 of these were already known from India, while a further 20, though named in the historical literature, can now be added to the national floral inventory because they are supported by hard evidence: newly collected specimens as well as photographs.
And then there are the 150 species that appear to be entirely new to science. All these records are supported by specimens Jayasinghe has deposited in the National Herbarium, as well as thousands of photographs. Returning to an interesting plant again and again until he finds it in flush, in fruit and in flower, he has accumulated a photo library representing some 2,600 of the 2,850 species of flowering plants then known from Sri Lanka, and that’s omitting the grasses and bamboos, which he hasn’t begun working on yet. The 210 new records will now get added to those tallies.