Cocconeis stauroneiformis Okuno

• Main Author: Joh, Gyeongje
• Format: Text
• Language: unknown
• Published: Zenodo 2021
• Subjects: Biodiversity; Taxonomy; Chromista; Bacillariophyta; Bacillariophyceae; Achnanthales; Cocconeidaceae; Cocconeis; Cocconeis stauroneiformis; Patagonia; Pacific; Argentina; Romero; Antarc*; Antarctica
• Online Access: https://dx.doi.org/10.5281/zenodo.5788134; https://zenodo.org/record/5788134

23. Cocconeis stauroneiformis (Rabenhorst) Okuno (Figs 3–5, 103, 104) Basionym: Rabenhorst 1864, p. 101. References: Romero 1996, p. 371, figs 25–54; De Stefano et al. 2000, p. 237, figs 87–92; Witkowski et al. 2000, p. 116, pl. 36, figs 8, 9, pl. 54, figs 1–3; Sar et al. 2003, p. 95, figs 51–57. Description: Valves elliptic-lanceolate to elliptical, 15–20 μm long, 8–12 μm wide. SV: sternum moderately linear to lanceolate, and central area not developed. Transapical striae broad, uniseriate, slightly radiate towards the apices, 8–11 in 10 μm, with 15–16 areolae in 10 μm of stria. RV: raphe straight, the central ends of raphe close each other, and sternum narrow. Central area transversely expanded into a hyaline fascia, up to the margins. Transapical striae slightly radiate towards the apices, 11 in 10 μm, with 16–17 areolae in 10 μm of stria. A hyaline rim in the submarginal area of valve. Remarks: As epiphytic and benthic diatoms, Cocconeis stauroneiformis is distributed widely from the Pacific Ocean to the Antarctica (Romero 1996), and cosmopolitan from marine to brackish waters (Witkowski et al. 2000). It occurred in Gulf of Naples of Italy (De Stefano et al. 2000), and in Patagonian coast of Argentina (Sar et al. 2003). In South Korea, this taxon was reported firstly as the epipsammic from the Nakdong River estuary (Joh 2012), and in this survey, infrequent as the epiphytes on seaweeds along the Seogwipo coast. : Published as part of Joh, Gyeongje, 2021, Distribution of the genus Cocconeis (Bacillariophyceae) along the Seogwipo coast of Jeju Island, South Korea, pp. 149-179 in Phytotaxa 528 (3) on page 170, DOI: 10.11646/phytotaxa.528.3.1, http://zenodo.org/record/5788071 : {"references": ["Rabenhorst, L. (1864) Flora Europaea Algarum aquae dulcis et submarinae. Sectio I. Algas diatomaceas complectens, cum figuris generum omnium xylographice impressis. Apud Eduardum Kummerum, Lipsiae. 359 pp.", "De Stefano, M., Marino, D. & Mazzella, L. (2000) Marine taxa of Cocconeis on leaves of Posidonia oceanica, including a new species and two new varieties. European Journal of Phycology 35: 225 - 242. https: // doi. org / 10.1080 / 09670260010001735831", "Witkowski, A., Lange-Bertalot, H. & Metzeltin, D. (2000) Diatom flora of marine coasts I. Iconographia Diatomologica Vol. 7. A. R. G. Ganter Verlag K. G., Ruggell. 925 pp.", "Sar, E. A., Romero, O. & Sunesen, I. (2003) Cocconeis Ehrenberg and Psammococconeis Garcia (Bacillariophyta) from the Gulf of San Matias, Patagonia, Argentina. Diatom Research 18: 79 - 106. https: // doi. org / 10.1080 / 0269249 X. 2003.9705575", "Joh, G. (2012) Freshwater diatoms V: Achnanthaceae. In: Algal flora of Korea. Vol. 3, No. 7. National Institute of Biological Resources, Ministry of Environment, Korea. 134 pp."]}