identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
03AA879B061A4F010C818A4995F3FE26.text	03AA879B061A4F010C818A4995F3FE26.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Luticola minutissima M. Rybak, Peszek, Skoczylas & Ludwig 2022	<div><p>Luticola minutissima M. Rybak, Peszek, Skoczylas &amp; Ludwig, sp. nov. (Figs 1–46)</p> <p>Type:— BRAZIL. Rio de Janeiro: city of Rio de Janeiro, Alto da Boa Vista, 22°57’09’’S, 43°13’40’’W, Ł. Skoczylas, 29 March 2015 (holotype UPCB! slide UPCB96.149, Herbarium of the <a href="http://tb.plazi.org/GgServer/search?materialsCitation.longitude=-43.22778&amp;materialsCitation.latitude=-22.952501" title="Search Plazi for locations around (long -43.22778/lat -22.952501)">Departamento de Botânica da Universidade Federal</a> do Paraná, <a href="http://tb.plazi.org/GgServer/search?materialsCitation.longitude=-43.22778&amp;materialsCitation.latitude=-22.952501" title="Search Plazi for locations around (long -43.22778/lat -22.952501)">Brazil</a>, depicted in Fig. 19). <a href="http://tb.plazi.org/GgServer/search?materialsCitation.longitude=-43.22778&amp;materialsCitation.latitude=-22.952501" title="Search Plazi for locations around (long -43.22778/lat -22.952501)">Isotypes</a>: slide 26943 at the <a href="http://tb.plazi.org/GgServer/search?materialsCitation.longitude=-43.22778&amp;materialsCitation.latitude=-22.952501" title="Search Plazi for locations around (long -43.22778/lat -22.952501)">Szczecin Diatom Collection</a> hosted by the <a href="http://tb.plazi.org/GgServer/search?materialsCitation.longitude=-43.22778&amp;materialsCitation.latitude=-22.952501" title="Search Plazi for locations around (long -43.22778/lat -22.952501)">University of Szczecin</a> (SZCZ); slide 2015/1/1 and cleaned material stored in the <a href="http://tb.plazi.org/GgServer/search?materialsCitation.longitude=-43.22778&amp;materialsCitation.latitude=-22.952501" title="Search Plazi for locations around (long -43.22778/lat -22.952501)">Diatom Collection</a> of the <a href="http://tb.plazi.org/GgServer/search?materialsCitation.longitude=-43.22778&amp;materialsCitation.latitude=-22.952501" title="Search Plazi for locations around (long -43.22778/lat -22.952501)">Institute of Agricultural Sciences</a>, <a href="http://tb.plazi.org/GgServer/search?materialsCitation.longitude=-43.22778&amp;materialsCitation.latitude=-22.952501" title="Search Plazi for locations around (long -43.22778/lat -22.952501)">Land Management</a> and <a href="http://tb.plazi.org/GgServer/search?materialsCitation.longitude=-43.22778&amp;materialsCitation.latitude=-22.952501" title="Search Plazi for locations around (long -43.22778/lat -22.952501)">Environmental Protection</a> at the <a href="http://tb.plazi.org/GgServer/search?materialsCitation.longitude=-43.22778&amp;materialsCitation.latitude=-22.952501" title="Search Plazi for locations around (long -43.22778/lat -22.952501)">University of Rzeszów</a>.</p> <p>Description:— Valves elliptic-lanceolate to rhombic-lanceolate with narrowly rounded apices (Figs 1–37). Range of valve dimensions (n = 60): 5.2–16.8 μm long and 3.7–5.4 μm wide. Axial area linear, central area bow-tie shaped, bounded by 2–4 areolae. Elongated stigma present in the central area, located close to face valve margin (Figs 38, 40, 42). Internally, stigma with indistinct opening bordered with large, circular, and lipped structure (Fig. 43, 45, 46). Marginal channel evident in SEM (Fig. 46), not visible in LM. Raphe branches almost straight to slightly curved (Figs 1–37, 39–41). External proximal endings double curved, first deflected away from the stigma, next abruptly hooked at a 90-degree angle to the stigma side (Fig. 29–42). Distal raphe endings hooked towards the stigma side, continuing onto the valve mantle (Fig. 39–42). Striae radiate, 22–28 at 10 μm, composed of 3–4 rounded areolae. Internally, poroids on valve face occluded by hymens, forming a continuous strip on each stria (Fig. 44, 46). Valve mantle has a single row of round areolae (Fig. 30, 37).</p> <p>Etymology:— The species name minutissima (lat. –tiny, smallest) refers to the small size of the new species’ frustule.</p> <p>Similar species:— Luticola deniseae Wetzel, Van de Vijver &amp; Ector (2010: 178), L. imbricata (W.Bock) Levkov, Metzeltin &amp; Pavlov (2013: 134), L. minima Levkov, Metzeltin &amp; Pavlov (2013: 157), L. neglecta Zidarova, Levkov &amp; Van de Vijver and L. tujii Levkov, Metzeltin &amp; Pavlov (2013: 243), (Table 2).</p> <p>Distribution and ecology:— The species was observed in terrestrial habitats (mosses and lichens overgrowing different substrates, i.e. a concrete wall and palm tree trunks), both in urban and forest areas. The species developed very rarely, in the form of individual valves in the samples.</p> <p>Together with Luticola minutissima sp. nov., the most frequent species in sample 2015/1 were Humidophila sp. (90.3%) and Achnanthes pseudoinflata M.Rybak, Peszek, Skoczylas, Ector &amp; C.E.Wetzel (2020: 3) (7.4%), while in sample 2015/3 the most frequent were: Humidophila contenta (Grunow) Lowe, Kociolek, J.R.Johansen, Van de Vijver, Lange-Bertalot &amp; Kopalová (2014: 357) (74.8%) and Luticola moreirae Straube, Tremarin &amp; T.Ludwig (2017: 428) (17.9%). In sample 2015/2 no dominant species were designated, due to an extremely low number of valves (15–30 per slide).</p> <p>Additional observation of Luticola neglecta Zidarova, Levkov &amp; Van de Vijver is presented (Figs 47–67). The observed valves (n = 30) correspond to the description in Zidarova et al. (2014, 2016) in most morphological features. Notwithstanding, some additional observations were made. The external shape of stigma in the mentioned papers is small and rounded, but from our observations, it also seems to be slightly elongated (Figs. 61, 63, 64). The internal valve view ultrastructure has not been described until now. The areolae of the valve face are occluded by hymenes, forming a continuous strip on each stria. A marginal channel is visible internally under SEM, and is occluded by hymen. Internal stigma opening is small and C-shaped.</p> </div>	http://treatment.plazi.org/id/03AA879B061A4F010C818A4995F3FE26	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Rybak, Mateusz;Peszek, Łukasz;Skoczylas, Łukasz;Ludwig, Thelma Alvim Veiga	Rybak, Mateusz, Peszek, Łukasz, Skoczylas, Łukasz, Ludwig, Thelma Alvim Veiga (2022): A new small-celled diatom from Brazil - Luticola minutissima sp. nov., with comparison to the type of the Antarctic L. neglecta Zidarova, Levkov & Van de Vijver. Phytotaxa 530 (3): 287-294, DOI: 10.11646/phytotaxa.530.3.4
