Thalli composed of several erect branches which are upto 12 cm long, 3.4 - 4.8 mm diamter and which arise from a common slender cylindrical stips attached to the substrate by a discoidal holdfast; the branches are cylindrical, decreasing in diameter from the primary to the tertiary branches; secondary branches are 13 - 27 mm long and 2.3 - 3 mm broad secund to pinately arranged on the main axis, sometimes forming irregular whorls at the apical portion; determinate branchelets have distinct apical pit, simple or bilobed at their tips and are 0.2 - 2.8 mm long by 0.8 - 1 mm broad; they are radially arranged in regular longitudinal rows on the secondary and tertiary branches, deceasing in length from base to tips of the branches; the cortical cells aare ractangular oblong 22.8 - 23.26 µ by 10.7 - 12.8 µ arranged like palisade and not projecting into the surface of the branches; secondary pit connections are absent; tetrasporophytic plants hae swollen determinate branchlets bears oval tetrahedral spores measuring 90 - 134.5 µ long and 63.5 - 100 µ broad.

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Link for Algaebase

N'Yeurt, A.D.R. & Payri, C.E. (2010). Marine algal flora of French Polynesia III. Rhodophyta, with additions to the Phaeophyceae and Chlorophyta. Cryptogamie Algologie 31: 3-205.

For Laurencia papillosa:

culot {Ilo};

dipdipig {Ilo};

lagot laki {Phil}

Basionym
Fucus perforatus Bory de Saint-Vincent

Type information
Type locality: “rade de Sainte-Croix” (Santz Cruz de Tenerife), Islas Canarias (Silva, Basson & Moe 1996: 519). Holotype: PC (Cassano et al. 2009: 87).