identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
312E4BC102F652C9A08C561211035312.text	312E4BC102F652C9A08C561211035312.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Diatoma sinensis Bing Liu & Rioual, sp. nov.	<html xmlns:mods="http://www.loc.gov/mods/v3">
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            <p> Diatoma sinensis Bing Liu &amp; Rioual, sp. nov.</p>
            <p>Figs 2, 3, 4, 5, 6, 7</p>
            <p>Holotype.</p>
            <p>JIU! G202201, specimen circled on slide, illustrated as Fig. 2B.</p>
            <p>Registration.</p>
            <p>Phycobank http://phycobank.org/103359.</p>
            <p>Type locality.</p>
            <p>China. Qinghai Province: Lake Qinghai, a sampling point near the lakeshore (Fig. 1, sampling site 1), 36°50'34"N, 99°42'39"E, 3210 m a.s.l., collected by Bing Liu, July 19, 2019.</p>
            <p>Description.</p>
            <p> LM (Fig. 2). Living cells always observed in girdle view are rectangular (Fig. 2A, arrows). Cell depth (along the pervalvar axis, n = 35) 3.3-8.8  μm , always larger than valve width (2.0-3.0  μm ). Valve linear-lanceolate, with subcapitate to capitate apices (Fig. 2B-R). Valve dimensions (n = 69): 24-88  μm long, 2.0-3.0  μm wide, transapical ribs unevenly spaced, 8-13 in 10  μm . Striae and sternum not resolved under LM. </p>
            <p> SEM (Figs 3 - 7). Frustule and valvocopula view: Frustule rectangular in girdle view (Fig. 3A); normal vegetative frustule composed of epivalve, hypovalve, and six girdle bands (Fig. 3B-D). Four girdle bands associated with the epivalve (Fig. 3B-D, B1 to B4), two with hypovalve (Fig. 3B-D, B5 and B6), yielding in a 4:2 configuration of girdle bands in non-dividing vegetative cells. Girdle bands open and having a closed-open-closed-open-closed-open arrangement at one apex in a complete cell (Fig. 3C-D). Striae continuing onto deep mantle and no blisters present (Fig. 3B-D). Valvocopula open at one pole, always furnished with two rows of poroids, but sometimes with very short isolated third row of poroids (Fig. 4D, arrow). Valvocopula forming an open ring with the same shape as the valve outline, closely attached to the mantle interior, surrounding the valve margin (Fig. 4B). Advalvar row of valvocopula poroids of each valvocopula bisecting pars interior from exterior, located at mid-line, pars media (Fig. 3C-D), inner row of poroids and the very short isolated third row located on pars exterior (Figs 4D, 5C-E). Valvocopula with crenulated edge attaching to valve, internally visible over virgae (Fig. 4G-H, arrows). Valvocopula open ends hyaline (with no ornamentation) (Figs 4H, 5C, 5F). Poroid density of the valvocopula is 66-70 in 10  μm . </p>
            <p> External view: Valve linear-lanceolate, with subcapitate to capitate apices (Fig. 6A-B). Valve surface smooth, spines absent. Striae uniseriate, perpendicular to a narrow central sternum, 43-54 in 10  μm . Striae in groups of two to six separated by transverse ribs continuing down the vertical mantle (Figs 3A-D, 6C-H). More closely spaced rows of pores occurring at both apices, forming rather distinct apical pore fields (Fig. 6C, E, F, H). Two rimoportulae per valve, one per pole, with slit-like opening externally (Fig. 6C, E, F, H). </p>
            <p>Internal view: Valve linear-lanceolate, with subcapitate to capitate apices (Fig. 7A-B). Transapical ribs, mostly primary, part of internal valve surface (Fig. 7A-H). Rimoportula prominent, two per valve (n = 22), present at both apices, possessing bilabiate structure (Fig. 7C, E, F, H). Rimoportula positions variable, either embedded in a transapical rib (Fig. 7C, E) or located among striae (Fig. 7F, H).</p>
            <p>Etymology.</p>
            <p>Named after China, where the species was found.</p>
            <p>Ecology.</p>
            <p> Measured in situ specific conductivity was 16.30  ± 0.09 mS∙cm-1, pH was 9.14  ± 0.01, and the water temperature was 15.5  ± 0.3 °C.  Diatoma sinensis was found on submerged stones with yellow-brown surfaces, occurring with  Berkeleya fennica Juhlin-Dannfelt (1882),  Pinnularia qinghainensis Bing Liu &amp; S. Blanco (Deng et al. 2021),  Entomoneis sinensis Bing Liu &amp; D.M. Williams (Long et al. 2022),  E. qinghainensis Bing Liu and D.M. Williams (Long et al. 2022),  E. paludosa (W. Smith) Reimer (Long et al. 2022),  Ctenophora sinensis Bing Liu &amp; D.M. Williams (Liu et al. 2020), and some species of  Navicula Bory (Bory de Saint-Vincent 1822),  Gyrosigma Hassall (1845),  Nitzschia Hassall (1845), and  Surirella Turpin (1828). </p>
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	https://treatment.plazi.org/id/312E4BC102F652C9A08C561211035312	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.		Pensoft via Plazi	Yuan, Li;Liu, Bing;Rioual, Patrick;Long, Ji-Yan;Peng, Yu-Mei	Yuan, Li, Liu, Bing, Rioual, Patrick, Long, Ji-Yan, Peng, Yu-Mei (2022): Diatoma sinensis: a new diatom species (Bacillariophyta) found in the brackish Lake Qinghai, China. PhytoKeys 210: 93-108, DOI: http://dx.doi.org/10.3897/phytokeys.210.90438, URL: http://dx.doi.org/10.3897/phytokeys.210.90438
