Dictyota korowai sp. nov. (Dictyotales, Phaeophyceae) from Manawatāwhi/Three Kings Islands, northern New Zealand, previously confused with Dictyota intermedia. Issue 4 (4th July 2019)

• Record Type: Journal Article
• Authors: Nelson, Wendy A.; Sutherland, Judy E.; Ringham, Sandi; Murupaenga, Huia
• Is Part Of: Phycologia. Volume 58:Issue 4(2019)
• Page Start: 433
• Page End: 442
• Publication Date: 2019-07-04
• Subjects: Dictyota korowai -- Dictyota sandvicensis -- Kermadec Islands -- New species -- Ngāti Kuri -- Rangitāhua; Algology -- Periodicals; Algae -- Periodicals; Algae; Natuurkunde; Algae; Periodicals; Electronic journals; 579.805
• DOI: 10.1080/00318884.2019.1625256
• Languages: English
• ISSNs: 0031-8884

Abstract

ABSTRACT: A new species of Dictyota (Dictyotales, Phaeophyceae), formerly identified as D. intermedia, is described from Manawatāwhi/Three Kings Islands. Morphological and anatomical features, in addition to molecular sequence data, of specimens collected from Manawatāwhi and Rangitāhua/Kermadec Islands were compared and enabled us to confirm that D. intermedia is present at Rangitāhua and differs from specimens collected at Manawatāwhi. Dictyota korowai sp. nov . is endemic to Manawatāwhi and possesses distinctive morphological features including the development of tongue-like proliferations on both surfaces of the blades and a thickened midrib which extends from the base into the lower portion of the axes. The presence of D. sandvicensis on Rangitāhua is reported for the first time, a new record for the New Zealand macroalgal flora.