Lemmaphyllum microphyllum is a widespread species, occurring throughout China, Korea, India, Japan, the Philippines, and Asiatic Islands. It is a wonderful epiphytic fern, whose fronds only reach about .5 inch. Fertile fronds will reach about 2″, but are very narrow. It especially loves to grow on treefern, but cork also works well. It will grow in a pot so long as the substrate is well drained. Like many small fern species, it is slow growing (but not difficult).