Fushitsunagia catenata

• Main Authors: D'Archino, Roberta, Zuccarello, Giuseppe C.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2021
• Subjects: Biodiversity; Taxonomy; Plantae; Rhodophyta; Florideophyceae; Rhodymeniales; Lomentariaceae; Fushitsunagia; Fushitsunagia catenata; Northwest Atlantic
• Online Access: https://doi.org/10.5281/zenodo.11094338; http://treatment.plazi.org/id/03B97F3CD42BD7765EFAD885FA451DA3

4.2 Fushitsunagia catenata Fushitsunagia catenata belongs to the Lomentariaceae. The Lomentariaceae in New Zealand is represented by two genera, Ceratodictyon and Lomentari a. In the field, F. catenata was tentatively identified as a Champia but clearly differed morphologically from the common native species Champia novae-zelandiae and Champia chathamensis (Nelson 2020) as well as from the introduced species Champia affinis (Adams 1994). Champia affinis is considered to have been an early introduction to New Zealand (Adams 1983) and it has a restricted distribution in southern New Zealand and is considered a ‘low impact, low risk’ species (Nelson 1999). The genus Fushitsunagia was recently segregated from Lomentaria (Filloramo and Saunders 2016). Although De Toni (1924) synonymised L. catenata with Lomentaria umbellata (Hook.f. et Harv.) Yendo from New Zealand, the latter is smaller, up to 8 cm high, has a soft and flaccid texture, with curved side branches and swollen tips (Nelson 2020) while F. catenata is larger (10–15 cm high), has straight apices and it is turgid. The other three native species: Lomentaria caespitosa, Lomentaria saxigena, and Lomentaria secunda are also smaller in size, 1–3 cm high (Adams 1994). The native range of Fushitsunagia catenata is Japan and Korea with the type locality Shimodo, Japan (Masuda et al. 1995). Fushitsunagia catenata is also found in the Gulf of California (Norris et al. 2017), New South Wales, Australia (Millar and Kraft 1993, as Lomentaria catenata ) and Spain (Gallardo et al. 2016). Species in the family that have been reported as non-indigenous are Lomentaria hakodatensis which is native in Asia and introduced to Italy (Curiel et al. 2006) and presumably California, USA and Pacific Mexico (Miller at al. 2011), Lomentaria clavellosa and Lomentaria orcadensis , native in Europe and introduced to the northwest Atlantic (Mathieson et al. 2008). Fushitsunagia catenata is perennial, and the new fronds regenerate at the broken or eroded margins. In Japan, it is luxuriant ...