Hannaea dorofeyukae Kulikovskiy, Glushchenko, Q.Liu & Kociolek, 2019
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publication ID |
https://doi.org/ 10.5252/cryptogamie-algologie2019v40a5 |
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DOI |
https://doi.org/10.5281/zenodo.7818986 |
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persistent identifier |
https://treatment.plazi.org/id/03DF8792-EB6E-4469-6A92-4DB9FBB6F81C |
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treatment provided by |
Felipe |
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scientific name |
Hannaea dorofeyukae Kulikovskiy, Glushchenko, Q.Liu & Kociolek |
| status |
sp. nov. |
Hannaea dorofeyukae Kulikovskiy, Glushchenko, Q.Liu & Kociolek , sp. nov.
( Figs 11-14 View FIG View FIG View FIG View FIG )
HOLOTYPE. — Slide no 02694; illustrated in Fig. 11C View FIG in collection of Maxim Kulikovskiy at the Herbarium of the Institute of Plant Physiology Russian Academy of Science, Moscow, Russia, leg. M.S. Kulikovskiy and E.S. Gusev.
TYPE LOCALITY. — Mongolia. Khövsgöl Lake, periphyton, 27.VII.2015 (N50°47.215’, E100°31.837’).
ETYMOLOGY. — Species dedicated to Nadezhda Dorofeyuk, renown Russian algologist and specialist of the Mongolian diatom flora.
DISTRIBUTION. — Type locality and slides no 02687, 02694, 03097, 03098.
DESCRIPTION
Valves
Arcuate, smoothly tapering to the ends with capitate to rostrate apices, length 45-91 µm, breadth 6-7 µm.
Axial area
Narrow, linear, expanded at the central area.
Central area
Large, unilaterally expanded and swollen on the concave margin of the valve without ghost striae. Striae parallel, 14-16 in 10 µm.
SEM, external views ( Fig. 13 View FIG )
Valve face is flat ( Fig. 13A View FIG ). Spines are present on some valves ( Fig. 13 View FIG B-D). Striae uniseriate or biseriate going from valve face to the mantle. Uniseriate striae present on the side opposite from unilaterally-expanded central area ( Fig. 13B, C View FIG ). Uniseriate striae also evident in central part of valve near the central area ( Fig. 13C View FIG ). Axial area is narrow and evidently broader to the central area. Central area is large, unilaterally-expanded on the ventral side of the valve; ghost striae are wanting ( Fig. 13 View FIG A-D). Small round or slit-like openings of rimportue are present on each valve end. Ocellimbi are present on mantle on each valve apex ( Fig. 13E, F View FIG ).
SEM, internal views ( Fig 14 View FIG )
Striae uniseriate or biseriate lying in narrow depressions ( Fig. 14 View FIG B-E). Uniseriate striae present especially in the central part of valve ( Fig. 14 View FIG B-E). Striae extend onto the mantle ( Fig. 14B View FIG ). Axial area is narrow and evidently broader near the central area. Central area is large, unilaterally-expanded on the ventral side, without ghost striae ( Fig. 14A, B, E View FIG ). One rimoportula is present at each valve apex. Ocellimbi are present on each valve ends on the mantle.
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.