|On dead corals on wave-exposed reef crests|
|Western Atlantic, Eastern Atlantic, Indo-Pacific Ocean|
|Thallus erect, fluffy, bushy, to 8 cm high, brown out of the water, iridescent-blue/green in situ.|
Branching alternate, blades twisted up to 3.5 mm wide, 80-120 μm thick, >47 cells wide with apices broadly rounded. Medullary cells rectangular, hyaline, arranged in single distinct layer up to 100 μm thick. Surface cortical cells rectangular, 15-20 μm diam., arranged in a single row on both sides of medulla.
|Guiry M.D. & Guiry G.M. 2009. AlgaeBase. Worldwide Electronic Publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 21 August 2009
Littler S.C. & Littler M.M. 2000. Caribbean Reef Plants. OffShore Graphics INC. Washington: 542pp
|In Bocas Del Toro|
|Reported By||Wysor, B. and O.De Clerck. 2003. An Updated and Annotated List of Marine Brown Algae(Phaeophyceae) of the Caribbean Coast of the Republic of Panama. Botanica Marina 46: 151–160.
NSF-PASI Advanced Methods in Tropical Phycology Course 2009
|Locality||Flat Rock Beach, Isla Colon|
|Comments||Most characteristics described above are consistent with the description of the species by Littler & Littler (2000); however, there are some differences in the blade width as some blades are more than 3 mm wide and others are less than 50 cells wide. Sporangia, oogonia and surface hairs were not observed.|
Dictyota mertensii in the field resembles D. hamifera and D. humifusa; however, those species show dichotomous to irregular branching and never show alternate branching. Moreover, D. hamifera bear lateral tendrils or hooks while Dictyota humifusa’s thallus is generally postrate and rarely erect.
|Dagoberto E. Venera-Ponton|
|Wysor, B. and O.De Clerck. 2003. An Updated and Annotated List of Marine Brown Algae(Phaeophyceae) of the Caribbean Coast of the Republic of Panama. Botanica Marina 46: 151â€“160.|
Field Guide to Common Marine Algae of the Bocas del Toro Area II: NSF-PASI Advanced Methods in Tropical Phycology Course 2009
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