Takakia
T. ceratophylla T. lepidozioides Takakia is a genus of two species of mosses known from western North America and central and eastern Asia.Fertile plants bearing antheridia and sporophytes were first reported in 1993 from the Aleutian Islands,[4] and both structures were clearly of the form found in primitive mosses.[5] It occurs in a variety of local habitats, from bare rock, to moist humus, and grows at elevations ranging from sea level to the subalpine.[6] Takakia is the oldest known extant genus of land plants, estimated to have branched off the other mosses around 390 million years ago.The green shoots which grow up from the turf are seldom taller than 1 cm, and bear an irregular arrangement of short, finger-like leaves (1 mm long).