Dendroceros

See text Dendroceros is a genus of hornworts in the family Dendrocerotaceae.

[2] The genus contains about 51 species native to tropical and sub-tropical regions of the world.

The edges of the thallus are only a single layer of cells thick and have an undulating margin.

It is common to find symbiotic colonies of blue-green bacteria (usually Nostoc) growing among the cells.

[4][5][3][6] The interior of the sporophyte differentiates into a central column and a surrounding mass of spores and elater cells, with a distinct spiral.