Gelidiella acerosa (Forsskål) Feldmann & G.Hamel, 1934
publication ID |
https://doi.org/ 10.11646/phytotaxa.314.2.2 |
persistent identifier |
https://treatment.plazi.org/id/03BE87B7-BC6E-FFAC-FF3A-8BBB9A65FD91 |
treatment provided by |
Felipe |
scientific name |
Gelidiella acerosa (Forsskål) Feldmann & G.Hamel |
status |
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Gelidiella acerosa (Forsskål) Feldmann & G.Hamel
Figs. 3 A View FIGURE 3 ; 4 A–E View FIGURE 4
Thalli are cylindrical to slightly compressed, rigid cartilaginous, dark vinaceous-red, up to 9.5 cm. Pinnate distichous branching up to second order ( Fig. 3 A View FIGURE 3 ). Apex obtuse with prominent apical cell ( Fig. 4 A View FIGURE 4 ). Thallus composed of many layers of medullary cells (more than 10) ( Fig. 4 B View FIGURE 4 ) and elliptical outer cortical cells radially arranged ( Fig. 4 C View FIGURE 4 ). Rhizines absent. Attachment by independent rhizoidal filaments. Tetrasporangia developed in distal sori on compressed to flattened ultimate branches with tetrasporangia developed acropetally ( Fig. 4 D View FIGURE 4 ) without sterile margins ( Fig. 4 E View FIGURE 4 ). Tetrasporangia divided decussately cruciate ( Fig. 4 E View FIGURE 4 ).
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