Gleichenia_microphylla_6615_Stockton4

Close up of the underside of a frond of carrier tangle fern, Gleichenia microphylla. Each of the yellow spheres is a spore-producing sporangia. This species has more or less flat and green frond undersides, and the sporangia often occur in groups (sori) of three. Photo Leon Perrie. © Te Papa.Read more