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Pterosiphonia tanakae (Rhodomelaceae, Ceramiales), a new red algal species from Japan
Author(s) -
Uwai Shinya,
Masuda Michio
Publication year - 1999
Publication title -
phycological research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.438
H-Index - 44
eISSN - 1440-1835
pISSN - 1322-0829
DOI - 10.1046/j.1440-1835.1999.00174.x
Subject(s) - ceramiales , rhodomelaceae , biology , botany , ecology , algae
SUMMARY The red alga Pterosiphonia tanakae Uwai et Masuda (Rhodomelaceae, Ceramiales) is established as a new species on the basis of material collected in Hiroshima Bay, the Inland Sea, Japan. It can be distinguished from the majority of previously described species of the genus by two key features, seven to 10 periaxial cells and the presence of weakly developed cortical cells. This species is further distinguished from P. pau‐cicorticata Dawson by completely alternate‐distichously branching and from Pjavanica (Martens) De Toni and P. spinifera (Kützing) Norris et Aken by the production of first‐order laterals that bear branches of up to five orders, which results in the thallus having a widely spreading, fan‐shaped appearance. The abundant production of vegetative trichoblasts is a further characteristic feature of P. tanakae .