New records of three marine red algae from Japan

Michio Masuda, Masaya Tani, Akira Kurihara

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Three species in the red algal order Ceramiales, Dasya longifila Masuda et Uwai (Dasyaceae), Endosiphonia horrida (C. Agardh) P. Silva (Rhodomelaceae) and Laurencia flexilis Setchell (Rhodomelaceae), are reported from Japan for the first time, and their morphological features are described along with taxonomic comments. Our findings point to the northernmost limit of geographic distribution of these species in the north-western Pacific. Dasya longifila is characterized by small, sparsely corticated axes, long pseudolaterals in which intercalary cell divisions take place, and a small number of tetrasporangial stichidia and spermatangial branches per fertile pseudolateral. Endosiphonia horrida is characterized by frequently anastomosing branches that form a bush-like tuft without a percurrent axis, inner cortical cells becoming the same length as the axial and periaxial cells, and luxuriously developed, unbranched trichoblasts. Laurencia flexilis is characterized by numerous cartilaginous rigid axes developing from a basal disc without creeping branches, the production of 4 periaxial cells per vegetative segment and the absence of longitudinally oriented secondary pit-connections between contiguous superficial cortical cells.

Original languageEnglish
Pages (from-to)244-254
Number of pages11
JournalPhycological Research
Issue number3
Publication statusPublished - Sept 2006
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Aquatic Science
  • Agricultural and Biological Sciences (miscellaneous)
  • Plant Science


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