It may be uni-or multicellular, and is found in the algae, lichens, bryophytes, and the gametophyte generation of the Filicinophyta, Lycophyta, and Sphenophyta.

• 可能为单细胞或为多细胞。叶状体存在于藻类、地衣、苔藓和羊齿、石松与木贼类植物的配子体世代中。