It always consists of true parenchyma, and is entirely formed by the cutting off of segments from an apical cell.
Chordaria sp., apical region showing so-called trichothallic growth.
ap. Apical organ.
Tail long, its apical half-clothed on the dorsal surface with long hairs.
The branches of the stem arise by multiplication of the cells 01 the epidermis and cortex at a given spot, giving rise to a protuber ance, at the end of which an apical meristem is established.