Millerella myrioclada (Børgesen) G.H.Boo, 2016

Jamas, Mayra, Iha, Cintia, Oliveira, Mariana C., Guimarães, Silvia M. P. B. & Fujii, Mutue T., 2017, Morphological and molecular studies on Gelidiaceae and Gelidiellaceae (Gelidiales, Rhodophyta) from Brazil with description of the new species Gelidium calidum, Phytotaxa 314 (2), pp. 195-218 : 203

Millerella myrioclada (Børgesen) G.H.Boo

Figs. 3 C–D; 4 K–N

Thalli erect, compressed, delicate and dark red, forming dense tufts, up to 1.5 cm ( Fig. 3 C). Erect axes are sparingly and irregularly branched ( Fig. 3 D). Apex acute with prominent apical cell having a pattern of malting division of subapical cells, resulting in an axial filament visible below the apex ( Fig. 4K). Cross section of median region of the main thalli shows three layers of medullary cells formed by axial and periaxial cells produced in a distinctive transverse row of thick-walled cells that remain evident in most plant parts ( Fig. 4 L). Rhizines absent. Fixing by independent rhizoidal filaments ( Fig. 4 M). Tetrasporangia divided decussately cruciate, arranged in chevrons, thus V-formation without sterile margins ( Fig. 4 N).