Platystele

tags: new species, biology, botany, orchid, tiniest orchid, Orchidaceae, Platystele, Lou Jost A close-up of the world's smallest orchid, at just over 2mm from petal tip to petal tip. Image: Lou Jost. The world's smallest orchid was discovered recently in a mountainous nature reserve in Ecuador by American botanist Lou Jost. Dr. Jost, a former physicist, now works as a mathematical ecologist, plant biogeographer and conservation scientist, and is one of the world's most expert orchid hunters. In the previous decade, Dr. Jost discovered 60 new species of orchids and 10 other new plant…