taxonID	type	description	language	source
276987D211383A5DFF72FE74FC590CC8.taxon	description	= present, - = absent, + / - = present or absent, - / + = usually absent, Inc = incomplete). Adapted from Sabbe et al. (2010) and Hasle et al. (1983).	en	Gomes, Ana, Witkowski, Andrzej, Dąbek, Przemysław, Boski, Tomasz, Moura, Delminda, Szkornik, Katie, Kurzydłowski, Krzysztof (2013): Syvertsenia iberica (Cymatosiraceae): a new estuarine diatom genus characterized by the position of its process. Phytotaxa 142 (1): 25-36, DOI: 10.11646/phytotaxa.142.1.3, URL: http://dx.doi.org/10.11646/phytotaxa.142.1.3
276987D211383A5DFF72FE74FC590CC8.taxon	type_taxon	Type species of the genus (designated here): ⎯ S yvertsenia iberica Witkowski & Gomes sp. nov. Etymology: ⎯ The genus is named in honor of Dr. Erik E. Syvertsen distinguished Norwegian diatomologist and one of the authors of the family Cymatosiraceae.	en	Gomes, Ana, Witkowski, Andrzej, Dąbek, Przemysław, Boski, Tomasz, Moura, Delminda, Szkornik, Katie, Kurzydłowski, Krzysztof (2013): Syvertsenia iberica (Cymatosiraceae): a new estuarine diatom genus characterized by the position of its process. Phytotaxa 142 (1): 25-36, DOI: 10.11646/phytotaxa.142.1.3, URL: http://dx.doi.org/10.11646/phytotaxa.142.1.3
276987D211393A5CFF72FC1BFCE20C17.taxon	materials_examined	Type: ⎯ SPAIN. Ayamonte: Guadiana Estuary, sandy flat near the river mouth (Fig. 1 B), station GS 1 (37 º 11 ’ 41 ’’ N, 7 º 24 ’ 22 ’’ W, Fig 1 C). Sample collected from surface sediment by Ana Isabel Gomes on the 26 th of May, 2010. Holotype SZCZ slide 18916, illustrated in Figures 6 and 7; isotype slide no. 13298 / ALGU in the ALGU Plant and Algae Collection (Fig. 2).	en	Gomes, Ana, Witkowski, Andrzej, Dąbek, Przemysław, Boski, Tomasz, Moura, Delminda, Szkornik, Katie, Kurzydłowski, Krzysztof (2013): Syvertsenia iberica (Cymatosiraceae): a new estuarine diatom genus characterized by the position of its process. Phytotaxa 142 (1): 25-36, DOI: 10.11646/phytotaxa.142.1.3, URL: http://dx.doi.org/10.11646/phytotaxa.142.1.3
276987D211393A5CFF72FC1BFCE20C17.taxon	etymology	Etymology: ⎯ The specific epithet was chosen considering that Guadiana Estuary makes the border between the two countries that constitute the Iberian Peninsula.	en	Gomes, Ana, Witkowski, Andrzej, Dąbek, Przemysław, Boski, Tomasz, Moura, Delminda, Szkornik, Katie, Kurzydłowski, Krzysztof (2013): Syvertsenia iberica (Cymatosiraceae): a new estuarine diatom genus characterized by the position of its process. Phytotaxa 142 (1): 25-36, DOI: 10.11646/phytotaxa.142.1.3, URL: http://dx.doi.org/10.11646/phytotaxa.142.1.3
276987D211393A5CFF72FC1BFCE20C17.taxon	distribution	Distribution and ecology: ⎯ Thus far, known only from the type habitat area i. e. Guadiana Estuary, stations GS 1, GS 2 and GS 18 (Fig. 1 C). In the referred stations, the salinity of the sediment interstitial water ranges between 19.93 (GS 1) and 30.74 g / Kg (GS 18) while pH values varies from 7.27 (GS 18) to 7.58 (GS 2). The substrate grain-size preference varies between medium silt (GS 18) and fine sand (GS 2). In terms of organic carbon percentage it ranges from 0.36 % (GS 2) to 3.40 (GS 18). Table 3 presents in detail the physicochemical parameters measured at each sampling station. The river water column adjacent to the sampling stations presents a mean salinity of 26.43 ± 11.13 g / Kg, a pH of 8.20 ± 0.27, dissolved oxygen of 98 ± 19.48 % and a mean temperature of 17.88 ± 5.13 º C.	en	Gomes, Ana, Witkowski, Andrzej, Dąbek, Przemysław, Boski, Tomasz, Moura, Delminda, Szkornik, Katie, Kurzydłowski, Krzysztof (2013): Syvertsenia iberica (Cymatosiraceae): a new estuarine diatom genus characterized by the position of its process. Phytotaxa 142 (1): 25-36, DOI: 10.11646/phytotaxa.142.1.3, URL: http://dx.doi.org/10.11646/phytotaxa.142.1.3
