Genus Pseudoceramium Barros-Barreto & Maggs, gen. nov.

Terete plants with pseudodichotomous branching and forcipate tips, corticated at the nodes. Cortical development consisting of 7-10 periaxial cells cutting off four cortical initial cells; or cutting of two acropetal cells that laterally form a pseudoperiaxial cell; or two acropetal and two basipetal and a pseudoperiaxial cell. Tetrasporangia originating from periaxial cells uni- or bilaterally, forming 2-3 tetrasporangia covered by cortical cells.

TYPE SPECIES. — Pseudoceramium oliveirarum Barros-Barreto, Maggs & M.A.Jaramillo, sp. nov.

ETYMOLOGY. — From the Greek pseudes meaning “false”, referring to the pseudoperiaxial cell being cut off laterally from a periaxial cell but then observed in the ring of the periaxial cells.