Navicula winoniformis Chudaev, Glushchenko, Kulikovskiy & Kociolek, 2022
|
publication ID |
https://dx.doi.org/10.3897/phytokeys.190.78164 |
|
persistent identifier |
https://treatment.plazi.org/id/BA325B1F-2449-A7B5-1F9E-8CEE231BE5EC |
|
treatment provided by |
|
|
scientific name |
Navicula winoniformis Chudaev, Glushchenko, Kulikovskiy & Kociolek |
| status |
sp. nov. |
Navicula winoniformis Chudaev, Glushchenko, Kulikovskiy & Kociolek sp. nov.
Figs 1 View Figure 1 , 2 View Figure 2
Navicula gottlandica sensu Lee, 2012 (fig. 4E) (Algal Flora of Korea vol. 3, num. 8).
Holotype.
Slide 03572 in collection of Maxim Kulikovskiy at the Herbarium of the Institute of Plant Physiology Russian Academy of Science, Moscow, Russia, represented here by Fig. 1E View Figure 1 .
Isotype.
Slide MW-D 898s1 in Diatom collection of the Department of Mycology and Algology, Faculty of Biology, M.V. Lomonosov Moscow State University, Moscow, Russia.
Type locality.
Vietnam. Khánh Hòa Province, Suối Dầu Reservoir, benthos, 12°09.900'N, 109°03.200'E, 36 m elev., leg. E.S. Gusev, 10.08.2010.
Description.
LM (Fig. 1A-P View Figure 1 ). Valves narrowly lanceolate with rostrate to subcapitate apices, length 29.7-49.0 μm, width 6.5-8.0 μm (n=32). Axial area narrow, slightly widening towards valve centre, central area transversely expanded, with irregular border due to unequal shortening of central striae, usually occupying about 1/2 of valve width. Striae radiate, becoming strongly convergent at the valve ends, 12-14/10 μm. Lineolae easy to resolve in light microscope, 24-27/10 μm. Raphe filiform to narrowly lateral, terminal fissures deflected to the secondary valve side, central pores straight or very slightly deflected to primary valve side, not close standing.
SEM, external view (Fig. 2A-C View Figure 2 ). Areola openings apically elongate, lying in distinct longitudinal grooves (Fig. 2C View Figure 2 , white arrow). Four small isolated areolae with almost circular openings present at valve apices on valve mantle (Fig. 2C View Figure 2 , white arrowheads). Raphe-sternum elevated very slightly in valve centre (Fig. 2B View Figure 2 , black arrow). Central pores drop-like without any projections, deflected slightly to primary valve side (Fig. 2B View Figure 2 , white arrows). Terminal fissures hooked to secondary valve side (Fig. 2A, C View Figure 2 , black arrows). Raphe branches with indistinct kink in proximal parts (Fig. 2A View Figure 2 , white arrow).
SEM, internal view (Fig. 2D-F View Figure 2 ). Striae slightly wider than virgae, lie at same level as latter, no transapical grooves formed (Fig. 2E, F View Figure 2 , black arrows). Internal areola openings rectangular (Fig. 2F View Figure 2 , black arrow) or circular (near central area) (Fig. 2E View Figure 2 , black arrowhead), wider than external ones. Hymenes were not preserved during the material treatment. Four to five small isolated areolae present at each apex (Fig. 2F View Figure 2 , white arrowheads). Raphe slit opens obliquely to secondary side and visible in proximal (Fig. 2E View Figure 2 , white arrowhead) and distal (Fig. 2F View Figure 2 , white arrow) parts only. Raphe-sternum very narrow, widened in centre, separated from accessory rib by longitudinal groove. Accessory rib well-developed (Fig. 2D View Figure 2 , white arrows), widened unilaterally in valve centre and at valve apices. Central raphe endings straight, simple, connected by thin indistinct furrow (Fig. 2E View Figure 2 , white arrows). Distal raphe endings well-developed helictoglossae deflected to secondary valve side (Fig. 2F View Figure 2 , white arrow).
Etymology.
Specific epithet is given due to similarity of new species to Navicula winona Bahls.
Distribution.
Vietnam. Type locality (Suối Dầu Reservoir, slide no 03572). Suối Dầu River (slide no 00318, 00323, 03773), Suối Tiên River (slide no 00326, 00328), Cái River (slide no 04853), Mư ờng Hoa River (slide no 02079), Da Tien Reservoir (slide 02069). Laos, Nam Lik River (slide no 00956).
Ecology.
Navicula winoniformis sp. nov. was found in a the reservoirs, and in rivers and waterfalls with different conductivity and pH values (Table 1 View Table 1 ). Below are the dominant species found in the samples along with N. winoniformis sp. nov.:
Sample 03572: Neidium gracile Hustedt, Encyonopsis fonticola (Hustedt) Krammer. Sample 00956: Oricymba voronkinae Glushchenko, Kulikovskiy & Kociolek, Pinnularia sikkimensis S.K. Das, C. Radhakrishnan, Kociolek & Karthick, Pinnularia stricta Hustedt, Luticola muticoides (Hustedt) D.G. Mann.
Sample 00318: Hydrosera triquetra Wallich, Diadesmis confervacea Kützing, Luticola nipkowii (Meister) Glushchenko & Kulikovskiy.
Sample 00323: Gomphonema dalatica Glushchenko, Kulikovskiy & Kociolek, Eunotia indosinica Glushchenko & Kulikovskiy.
Sample 03773: Eunotia indomalaica Glushchenko, Kulikovskiy & Kociolek, O. voronkinae .
Sample 00326: Gomphonema subventricosum Hustedt, D. confervacea , Oricymba perjaponica (Krammer & Lange-Bertalot) Kulikovskiy, Glushchenko & Kociolek, Rhopalodia gibba (Ehrenberg) O. Müller, Encyonema javanicum (Hustedt) D.G. Mann.
Sample 00328: Placoneis paraundulata T. Ohtsuka, E. javanicum , Eunotia laoarcus Glushchenko, Kulikovskiy & Kociolek.
Sample 04853: D. confervacea , Platessa oblongella ( Østrup) Wetzel, Lange- Bertalot & Ector, Luticola taylorii Levkov, Metzeltin & Pavlov, N. gracile , E. javanicum , O. voronkinae , Frustulia magaliesmontana Cholnoky.
Sample 02079: P. oblongella , Reimeria sinuata (Gregory) Kociolek & Stoermer, E. javanicum , Encyonema leei Krammer.
Sample 00269: G. dalatica , Adlafia lamdongiensis Glushchenko, Kulikovskiy & Kociolek, Kobayasiella lamii Glushchenko, Kulikovskiy & Kociolek.
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.
|
Kingdom |
|
|
Phylum |
|
|
Class |
|
|
Order |
|
|
Family |
|
|
Genus |
Navicula winoniformis Chudaev, Glushchenko, Kulikovskiy & Kociolek
| Kulikovskiy, Maxim S., Chudaev, Dmitry A., Glushchenko, Anton M., Kuznetsova, Irina V. & Kociolek, John Patrick 2022 |
Navicula gottlandica
| Kulikovskiy & Chudaev & Glushchenko & Kuznetsova & Kociolek 2022 |