From e73f5bbfe26178135a31cf0294a3bc865c21aaa3 Mon Sep 17 00:00:00 2001 From: ggserver Date: Fri, 18 Oct 2024 19:35:25 +0000 Subject: [PATCH] Add updates up until 2024-10-18 19:30:21 --- .../87/2A6887F31426FFF793A4FE34FF07FA89.xml | 135 +- .../E5/5C97E54C71D25430B3F2738B8940C257.xml | 1380 +++++++++++++++++ .../A1/69A3A1EC76E0563FA880815F214FB309.xml | 599 +++++++ 3 files changed, 2065 insertions(+), 49 deletions(-) create mode 100644 data/5C/97/E5/5C97E54C71D25430B3F2738B8940C257.xml create mode 100644 data/69/A3/A1/69A3A1EC76E0563FA880815F214FB309.xml diff --git a/data/2A/68/87/2A6887F31426FFF793A4FE34FF07FA89.xml b/data/2A/68/87/2A6887F31426FFF793A4FE34FF07FA89.xml index 1ad20f57fa1..248bb20f8eb 100644 --- a/data/2A/68/87/2A6887F31426FFF793A4FE34FF07FA89.xml +++ b/data/2A/68/87/2A6887F31426FFF793A4FE34FF07FA89.xml @@ -1,52 +1,53 @@ - - - -Guerothrips moundi, gen. et sp. n. (Thysanoptera, Thripidae) from Chiapas, Mexico + + + +Guerothrips moundi, gen. et sp. n. (Thysanoptera, Thripidae) from Chiapas, Mexico - - -Author + + +Author -Goldarazena, Arturo +Goldarazena, Arturo - - -Author + + +Author -Infante, Francisco +Infante, Francisco -text - - -Zootaxa +text + + +Zootaxa - -2013 - -3669 + +2013 + +3669 - -2 + +2 - -172 -178 + +172 +178 -journal article -10.11646/zootaxa.3669.2.9 -8f84a516-c020-49d1-866f-c869f6808344 -1175-5326 -219213 -7874B97E-57A4-4678-9911-E3945DA9FB9B +journal article +43465 +10.11646/zootaxa.3669.2.9 +8f84a516-c020-49d1-866f-c869f6808344 +1175-5326 +219213 +7874B97E-57A4-4678-9911-E3945DA9FB9B - + Guerothrips gen. n. @@ -79,7 +80,7 @@ Thripidae-Thripinae with females and males brachypterous. Antennae 8-segmented ( ); tergite IX without stout setae. Type species - + Guerothrips moundi @@ -118,7 +119,7 @@ is similar to Frankliniella and - + Guerothrips in most characteristics but the mouth cone is exceptionally long, a craspedum is present on the posterior margin of the tergites, and the median setae on the metanotum are far back from the anterior margin (Mound & Marullo 1996). @@ -155,7 +156,7 @@ and all have 8–9 antennal segments and sternal discal setae, but lack tergal ctenidia, males have a glandular opening between sternites II–III, and the fore wing setal rows are interrupted or irregular on both veins (de Borbón 2008). - + Guerothrips moundi @@ -167,7 +168,7 @@ all have 8–9 antennal segments and sternal discal setae, but lack tergal cteni FIGURES 1–6. - + Guerothrips moundi @@ -190,7 +191,7 @@ all have 8–9 antennal segments and sternal discal setae, but lack tergal cteni Waltheria indica , plant with flowers; (16) Map of Mexico showing the collection site of - + Guerothrips moundi @@ -238,28 +239,64 @@ male in microns). Body length distended 1020. Head, length 72, width 100; ocella Material examined . + Holotype -female brachypterous, +female +brachypterous, MEXICO -, Tapachula, Chiapas, from flowers of +, +Tapachula +, +Chiapas +, + +from flowers of Waltheria indica + , -6.i.2012 -(Antonio Girón & Uriel Garay) (deposited in the Natural History Museum, London). + +6.i.2012 + +( +Antonio Girón +& +Uriel Garay +) (deposited in the Natural History Museum, London). + + Paratypes -: 4 brachypterous females and 1 brachypterous male collected with the -holotype -. One -paratype -female will be deposited in the entomological collection of ECOSUR (Tapachula, Chiapas, +: 4 brachypterous +females +and 1 brachypterous +male +collected with the holotype. + + +One +paratype +female will be deposited in the entomological collection of ECOSUR ( +Tapachula +, +Chiapas +, Mexico -) and other female in the Senckenberg Museum (Frankfurt, -Germany -). One female and one male will be deposited in the Neiker collection of Insects. +) + + +and other +female +in the Senckenberg Museum (Frankfurt, Germany). + + +One female +and +one male +will be deposited in the Neiker collection of Insects. + diff --git a/data/5C/97/E5/5C97E54C71D25430B3F2738B8940C257.xml b/data/5C/97/E5/5C97E54C71D25430B3F2738B8940C257.xml new file mode 100644 index 00000000000..d9754a821d8 --- /dev/null +++ b/data/5C/97/E5/5C97E54C71D25430B3F2738B8940C257.xml @@ -0,0 +1,1380 @@ + + + +Nomenclature and systematics of two Cocconeis species (Bacillariophyta) from Lake Baikal: Cocconeis baicalensis and Cocconeis skvortzowii + + + +Author + +Gogorev, Rinat +0000-0001-8668-7912 +Komarov Botanical Institute RAS, 2 Prof. Popova St., Saint Petersburg, 197022, Russia + + + +Author + +Yurchak, Maria +0000-0002-6079-539X +Komarov Botanical Institute RAS, 2 Prof. Popova St., Saint Petersburg, 197022, Russia + + + +Author + +Sokolova, Irina +0000-0001-5277-6669 +Komarov Botanical Institute RAS, 2 Prof. Popova St., Saint Petersburg, 197022, Russia + + + +Author + +Glushchenko, Anton +0000-0002-2832-1872 +К. А. Timiryazev Institute of Plant Physiology RAS, IPP RAS, 35 Botanicheskaya St., Moscow, 127276, Russia + + + +Author + +Kulikovskiy, Maxim +0000-0003-0999-9669 +К. А. Timiryazev Institute of Plant Physiology RAS, IPP RAS, 35 Botanicheskaya St., Moscow, 127276, Russia + +text + + +PhytoKeys + + +2024 + +2024-10-18 + + +247 + + +219 +248 + + + +journal article +10.3897/phytokeys.247.131353 + + + + + +Cocconeis baicalensis +(B. V. Skvortzov & K. I. Meyer) B. V. + +Skvortzov +1946 in + + +Zapiski Kharbinskogo Obshchestva Estestvoispytatelei i Etnografov, 2. Botany: 19, pl. 3, fig. 24; pl. 5, figs 9–11 (as “ baikalensis ” (Skv. et Mey.) Skv.) emend. Gogorev & Yurchak + + + + + + + +Cocconeis placentula +Ehrenberg +var. baicalensis +Skvortzov & K. I. Meyer +1928 in + + +Proceedings of the Sungaree River Biological Station +1, 5: 11, pl. 1. fig. 25, earlier homonym of + +C. placentula var. baikalensis +Skvortzov 1937 + +. Basionym. + + + + + +≡ + +Cocconeis placentula +Ehrenberg +subsp. baicalensis +(Skvortzov & K. I. Meyer) Skabichevskij +1977 in + +Prirodnye kompleksy nizshikh rastenii Zapadnoi Sibiri +: 127, fig. 2, 6–8 (with authorship of the basionym “ Skv. ”). Synonym. + + + + + + +Type materials. + + + + +Lectotype + +• (designated here): +Baikal +, +Cape Kotelnikovskiy +, No. 318, + +30 June 1926 + +[N 318, “ Kotelnikovi Maiak ”, + +Aegagrophila + +, 30 / VI- 26], leg. +K. I. Meyer +, permanent slide No. 318 a, +LE +A 0004242 + +. + + + + +Isolectotype + +• +Baikal +, +Cape Kotelnikovskiy +, No. 318, + +30 June 1926 + +[N 318, “ Kotelnikovi Maiak ”, + +Aegagrophila + +, 30 / VI- 26], leg. +K. I. Meyer +, permanent slide No. 318 b, +LE +A 0004243 + +. + + + + +Epitype + +• (designated here): figures here represented by Fig. +9 C +( +Baikal +, specimen +BL 15645 +, leg. +A. P. Skabichevsky +, + +20 July 1965 + +) + +. + + + + +Type locality. + + +Russia +, Lake Baikal, Barguzin Bay, Bay Pestchannaya, Boguchanskaya Gulf, Cape Elokhin, Cape Kotelnikovskiy, Island Bolshoy Ushkaniy, Maloe More, Marituy, Selenga River, Village Guelga. + + + + +Description. + + +LM +(n = 56) (Figs +3 +– +7 +). Valves broadly elliptical, 11.2–29.2 μm in length (mean 19.4), +8.6–21.5 in +breadth (mean 14.6). +RV +with straight raphe, +SV +with straight or slightly curved axial area. On +RV +20–28 striae in 10 μm (mean 23.4) and 18.5–27.5 areolae in 10 μm of stria (mean 24.5), on +SV +22–28 striae in 10 μm (mean 24.3) and 13.0–19.5 areolae in 10 μm of stria (mean 16.6). Length to breadth ratio 1.2–1.5: 1 (mean 1.3: 1). + + + + + + + +Cocconeis baicalensis + +. +LM +. Lectotype. Slide No. 318 a, Kotelnikovskiy Mayak, LE A 0004242 +A – K +raphe valve +L – AA +sternum valve. Scale bar: 10 µm. + + + + + + + + +Cocconeis baicalensis + +. Raphe valve. +LM +. Slides No. BL 18566 – BL 18675, Island Bolshoy Ushkaniy. Scale bar: 10 µm. + + + + + + + + +Cocconeis baicalensis + +. Sternum valve. +LM +. Slides No. BL 18566 – BL 18675, Island Bolshoy Ushkaniy. Scale bar: 10 µm. + + + + + + + + +Cocconeis baicalensis + +. +LM +. Slide No. 336 a, Boguchanskaya Gulf. LE A 0004244 +A – D +raphe valve +E – I +sternum valve. Scale bar: 10 µm. + + + + + + + + +Cocconeis baicalensis + +. +LM +. Slide No. 5, Marituy, LE A 0002317 +A, D +sternum valve with valvocopula +B, C, E, F +raphe valve +G +valvocopula of raphe valve +H +sternum valve. Scale bar: 10 µm. + + + +SEM +(n = 74). Valves from subcircular to broadly elliptical, with broadly rounded apices, 11.5–36.7 μm in length (mean 19.1–21.3), +8.7–27.1 in +breadth (mean 15.2–17.2). Length to breadth ratio 1.0–1.4: 1 (mean 1.2–1.3: 1). +RV +and +SV +very different on structure. + + +RV +(n = 28). Valves concave, with straight raphe and narrow-linear axial area. Striae uniseriate, +21–32 in +10 μm (mean 24.6), weakly radial in valve middle, more radial towards valve apices, interrupted by submarginal hyaline strips and not reached valve margin. Areolae +20–31 in +10 μm of stria (mean 24.8), absent at valve apices. Valve mantle reversed (contra mantle): valve face flat, mantle (or part of it) elevated and opposite directed to the adjacent +SV +, these two parts (flat and raised) separated from each other by narrow submarginal hyaline strips, 0.3–0.8 μm in breadth. Wider marginal ridge, 0.8–2.0 μm in breadth, at mantle or along valve edge. + + +RV +, external view (Figs +8 A – F +, +11 A – D +, +13 A, B +, +15 A, C, D +). Central area small, round or rectangular. Raphe straight, proximal (central) endings drop-shaped, slightly extending into central area; distal endings more extending and frequently T-shaped. Areolae round or unevenly rounded, small along raphe, increasing towards valve edge. + + + + + + + +Cocconeis baicalensis + +. Raphe valve, external view. +SEM +. Specimen No. BL 15645, Island Bolshoy Ushkaniy. Scale bar: 5 µm. + + + +RV +, internal view (Figs +9 A – D +, +11 E, F +, +13 C +, +15 B +). Central area round, axial and central areas slightly convex. Proximal raphe endings directed opposite; distal ones straight or directed opposite from each other and from proximal endings, i. e. raphe branches S-shaped. Hyaline area (submarginal hyaline strips) in form of ridge. Areolae round, equal in size, and occluded (not always) by hymen. + + + + + + + +Cocconeis baicalensis + +A – D +raphe valve, internal view +B +valve with valvocopula. +SEM +. Specimen No. BL 15645, Island Bolshoy Ushkaniy. Scale bar: 5 µm. + + + + +RVVC + +(Fig. +13 D +). Valvocopula connected conically to +RV +, closed or opened, up to 3 μm in breadth, with uneven edge bears and elongated weakly curved fimbriae, 0.9–1.8 μm high, +13–18 in +10 μm, some fimbriae with dichotomously branched tips. + + +SV +(n = 45). Valves convex, increasing of convexity closer to valve edge. Central area and hyaline rings absent. Striae uniseriate, +17–28 in +10 μm (mean 25). Areolae round to unevenly rounded, sometimes elongated, +11–23 in +10 μm of stria (mean 18.7). + + +SV +, external view (Figs +12 A – D +, +14 A, B +, +15 E +). Axial area narrowly linear or absent. Middle part of valve (not mantle) often with small granules arranged in order or randomly. + + +SV +, internal view (Figs +10 A – D +, +12 E, F +, +14 C, D +, +15 F +). Axial area narrowly linear to narrowly lanceolate, usually slightly raised as rib. + + + + + + + +Cocconeis baicalensis + +A – D +sternum valve, internal view +A, B +valve with valvocopula +D +lowest valve (arrowhead). +SEM +. Specimen No. BL 15646, Island Bolshoy Ushkaniy. Scale bars: 5 µm. + + + + + + + + +Cocconeis baicalensis + +. Raphe valve ( +A – D +) external view ( +E, F +) internal view. +SEM +. Specimen No. 318, Kotelnikovskiy Mayak. Scale bars: 2 µm ( +A +); 5 µm ( +B, D – F +); 1 µm ( +C +). + + + + + + + + +Cocconeis baicalensis + +. Sternum valve ( +A – D +) external view ( +E, F +) internal view. +SEM +. Specimen No. 318, Kotelnikovskiy Mayak. Scale bars: 5 µm ( +A, C, E +); 2 µm ( +B, D, F +). + + + + + + + + +Cocconeis baicalensis + +A – C +raphe valve +A, B +external view +C +internal view +D +valvocopula (VCRV). +SEM +. Specimen No. 5, Marituy. Scale bars: 5 µm ( +A – C +); 2 µm ( +D +). + + + + + + + + +Cocconeis baicalensis + +A – D +sternum valve +A, B +external view +C +internal view +D +valve with valvocopula. +SEM +. Specimen No. 5, Marituy. Scale bars: 5 µm ( +A, C, D +); 2 µm ( +C +). + + + + + + + + +Cocconeis baicalensis + +A, B +raphe valve +A +external view +B +internal view +C +frustule +D +part of frustule, external +RV +and internal +SV +view +E, F +sternum valve +E +external view +F +internal view. +SEM +. Specimen No. 336, Boguchanskaya Gulf. Scale bars: 5 µm ( +A – C, E +); 1 µm ( +D +); 2 µm ( +F +). + + + +SVVC +. Valvocopula closed, 1.3–1.7 μm in breadth. + +There are no data on copulae, except valvocopulae. + + + +Comments. + + +Our data differ from the data of Skvortzov and Skabichevsky in the following (Table +4 +): the valve length corresponds to Skvortzov’s description ( +Skvortzov 1946 +). The upper range of valve width and the stria density on both valves are increased. The protologue data of 14 striae in 10 μm were not observed and are likely erroneous. Literature data on the areola density in striae most likely refer to a +SV +, according to our data it is somewhat higher than it is in the literature; while the areola density on the +RV +is significantly higher than on the +SV +. + + + + + + +Comparison of morphological features of + +Cocconeis skvortzowii + +and related species. + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
SpeciesValve length (μm)Valve breadth (μm)RatioStriae number in 10 μmAreolae number in 10 μmDistributionReferences
+RV + +SV +
+ +Cocconeis skvortzowii + +8.9–27.05.6–17.71.3–2.0: 120–2413–23 +22–33 ( +RV +) +Lake BaikalOur data
+ +C. placentula var. skvortzowii + +11–366.8–22.01.6–1.8 (2.1): 1 *20–3013–20 +11–13 ( +SV +) +Lake Baikal +Skvortzow 1937 +; +Skabichevsky 1977 +
+ +C. placentula var. skvortzowii + +12–247–141.7: 1 *~ 3018n. d.Lake Baikal +Sheshukova 1950 +
+ +C. skvortzowii + +14–368–221.6–1.8: 1 *15 – 2015–2011–13Lake Baikal +Sheshukova 1951 +
+ +C. disculus +(Schumann) Cleve + +20–2511–161.6–1.8: 1 *227–9n. d.Europe +Sheshukova 1950 +, +1951 +
10–257–161.4–1.6: 1 *20 – 226–10 +18–22 ( +RV +) +Cosmopolitan, Germany +Krammer and Lange-Bertalot 1991 +; +Hofmann et al. 2011 +; +Kulikovskiy et al. 2016 b +; +Lange-Bertalot et al. 2017 +
+ +C. diminuta +Pant. + +8.561.4: 1 *3524n. d.Lake Baikal +Skvortzow 1937 +
+ +C. disculus var. diminuta +(Pant.) Scheshukova + +7–155–91.4–1.7: 1 *~ 3213n. d.European Russia, Mongolia +Sheshukova 1950 +, +1951 +
+ +C. neodiminuta +Krammer + +7–185–91.4–2: 1 *24 – 3211–14 (2–4 areolae per stria) +25–32 ( +RV +) +Germany, Hungary, Switzerland, Ireland +Krammer and Lange-Bertalot 1991 +; +Kulikovskiy et al. 2016 b +
9.6–19.46.5–8.01.5–2.4: 1 *ca. 25n. d.n. d.Poland +Wojtal 2009 +
8–186–91.3–2: 1 *24 – 3211–14 +25–32 ( +RV +) +Germany, Hungary, Ireland +Romero and Van de Vijver 2011 +
13–177–101.7–2: 1 *3013–15n. d.Brazil +Costa et al. 2020 +
+ +C. placentula var. euglypta +(Ehrenb.) Grunow + +10–46n. d.n. d.n. d.19 – 22n. d.Cosmopolitan +Krammer and Lange-Bertalot 1991 +
11.0–41.27.4–26.61.5: 1 *ca. 2020–22n. d.Poland +Wojtal 2009 +
+ +C. euglypta +Ehrenb. + +(epitype) +15.9–29.59.8–17.71.5–1.8: 117–2218.5–24 / 20–24n. d.Baltic Sea +Romero and Jahn 2013 +
15–309–181.7: 1 *17–2218–24n. d.Cosmopolitan +Kulikovskiy et al. 2016 b +
15–459–281.5–1.8: 117–2218–24n. d.n. d +Lange-Bertalot et al. 2017 +
13.4–29.58.3–16.61.6–1.8: 1 *19 – 2422–24n. d.Brazil +Costa et al. 2020 +
+ +C. placentula var. lineata +(Ehrenb.) Van Heurck + +30181.7: 1 *n. d.24n. d.Lake Baikal +Skvortzow 1937 +
40–7030–401.3–1.8: 1 *n. d.n. d.n. d.Russia, Europe +Sheshukova 1951 +
10–80n. d.n. d.n. d.16 – 23n. d.Cosmopolitan +Krammer and Lange-Bertalot 1991 +
14.0–25.210.5–14.01.3–1.8: 1 *22.0 – 23.520–22n. d.Poland +Wojtal 2009 +
11–427–281.5–1.6: 1 *15 – 24 (30)n. d.n. d.North Russia +Genkal and Vekhov 2007 +
+ +C. lineata +Ehrenb. + +(epitype) +18.6–22.76.4–13.11.6–2.4: 120–28(7) 10–15 / 12–20 +16–24 (26) ( +SV +) +Faroer Islands, Denmark +Romero and Jahn 2013 +
+ +C. lineata + +18–236–141.6–3: 1 *20 – 2810–15 +16–24 ( +SV +) +Cosmopolitan +Kulikovskiy et al. 2016 b +
16–806–351.6–2.4: 120–2810–15 +16–24 ( +SV +) +Europe +Lange-Bertalot et al. 2017 +
12.7–19.67.9–10.91.6–1.8: 121–2225–32n. d.Brazil +Costa et al. 2020 +
19.1–22.89.4–12.61.6–2.218–2422–28 +25–28 ( +RV +), 12–18 ( +SV +) +KoreaJahn et al. 2017
+ +C. placentula var. pseudolineata +Geitler + +7.5–38.0n. d.n. d.n. d.13 – 20 (22)n. d.n. d. +Krammer and Lange-Bertalot 1991 +
7.5–38.0n. d.n. d.16 – 20 (22)20–23n. d.n. d. +Romero and Van de Vijver 2011 +
+ +C. pseudolineata +(Geitler) Lange-Bert. + +7.5–38.06–181.3–2.1: 1 *20 – 2313–18 (20) +16–20 (22) ( +SV +) +Europe +Hofmann et al. 2011 +; +Lange-Bertalot et al. 2017 +
12.5–23.08–181.3–1.6: 1 *23 – 2413–15n. d.Poland +Wojtal 2009 +
16–328–142–2.3: 1 *23 – 2612–22 +23–28 ( +RV +) +n. d. +Werum and Lange-Bertalot 2004 +
+ +C. pseudothumensis +Reichardt + +11.5–13.58.2–9.51.4: 1 *35–4010–20 +10–20 ( +RV +) +Europe, France, Germany, Switzerland +Reichardt 1982 +; +Romero and Van de Vijver 2011 +
11.5–13.58.2–9.51.4: 1 *35–4010–12n. d.France, Europe +Krammer and Lange-Bertalot 1991 +; +Hofmann et al. 2011 +; +Lange-Bertalot et al. 2017 +
9–156.5–11.01.4: 1 *35–4010–14n. d.Holarctic +Kulikovskiy et al. 2016 b +
+ +C. thumensis +Ant. Mayer + +Up to 105–6n. d.15 – 1615–16n. d.North European Russia, Europe +Sheshukova 1950 +, +1951 +
+ +C. neothumensis +Krammer + +6.5–13.04.0–8.31.6: 1 *28–3616–25 +34–37 ( +RV +) +Cosmopolitan, Germany +Krammer and Lange-Bertalot 1991 +; +Hofmann et al. 2011 +; +Kulikovskiy et al. 2016 b +; +Lange-Bertalot et al. 2017 +
11.2–12.27.0–7.41.6: 1 *2326n. d.Brazil +Costa et al. 2020 +
8.0–10.64.4–8.01.3–1.8: 1 *25 – 3028n. d.North Russia +Genkal and Vekhov 2007 +
+ + +* – our calculations on illustrations; n. d. – no data. + + + +Cocconeis baicalensis + +, in contrast to + +C. placentula +Ehrenberg + +, has (1) broadly elliptical valves, (2) the lanceolate submarginal hyaline strip on the +RV +, (3) the stria density is higher on the +RV +and lower on the +SV +, (4) striae located along the valve edge are interrupted on / near the apices by the submarginal hyaline strips, (5) rounded areolae on the +SV +, (6) the sternum on the +SV +is clear on the internal surface. + + +We choose +SEM +photograph Fig. +9 C +, as the +epitype +of + +C. baicalensis + +, to show the morphological features of the +RV +in the internal view, which are poorly represented in the type material, namely its 3 D-shape, density and arrangement of striae, shape and size of hyaline areas. Additionally, figures 8 A, 10 A and 12 C show the same traits of the +RV +in the external view and +SV +in the external and internal view. + + +The validating description of + +Cocconeis placentula var. baikalensis + +( +Williams and Reid 2001 +, 310) (≡ + +Cocconeis skvortzowii + +) is “ based on a little bottom sample collected by Prof. K. I. Meyer at the depth of 33 meters near the Olhon Gate of Baikal Lake +July 29, 1916 +” ( +Williams and Reid 2001 +, 297). No specimen of this gathering has been found in +LE +. In its absence, the only element of the original material are the illustrations in the protologue ( +Williams and Reid 2001 +, pl. 5, figs 5, 7, 8), two of which we are designating as the +lectotype +. + + +Since the drawings ( +Williams and Reid 2001 +, pl. 5, figs 7, 8) do not demonstrate the morphological details, but only the valve outlines and a wide axial area on both valves, we are designating the +epitype +, namely +SEM +photograph Fig. +18 C +of Skabichevsky’s material from the Island Bolchoy Ushkaniy. The +epitype +illustration clearly shows the morphological features of the +RV +and +SV +in the external and internal view, namely shape, density and arrangement of striae, shape and size of areolae. + + + + \ No newline at end of file diff --git a/data/69/A3/A1/69A3A1EC76E0563FA880815F214FB309.xml b/data/69/A3/A1/69A3A1EC76E0563FA880815F214FB309.xml new file mode 100644 index 00000000000..c4b4ee9bd06 --- /dev/null +++ b/data/69/A3/A1/69A3A1EC76E0563FA880815F214FB309.xml @@ -0,0 +1,599 @@ + + + +Nomenclature and systematics of two Cocconeis species (Bacillariophyta) from Lake Baikal: Cocconeis baicalensis and Cocconeis skvortzowii + + + +Author + +Gogorev, Rinat +0000-0001-8668-7912 +Komarov Botanical Institute RAS, 2 Prof. Popova St., Saint Petersburg, 197022, Russia + + + +Author + +Yurchak, Maria +0000-0002-6079-539X +Komarov Botanical Institute RAS, 2 Prof. Popova St., Saint Petersburg, 197022, Russia + + + +Author + +Sokolova, Irina +0000-0001-5277-6669 +Komarov Botanical Institute RAS, 2 Prof. Popova St., Saint Petersburg, 197022, Russia + + + +Author + +Glushchenko, Anton +0000-0002-2832-1872 +К. А. Timiryazev Institute of Plant Physiology RAS, IPP RAS, 35 Botanicheskaya St., Moscow, 127276, Russia + + + +Author + +Kulikovskiy, Maxim +0000-0003-0999-9669 +К. А. Timiryazev Institute of Plant Physiology RAS, IPP RAS, 35 Botanicheskaya St., Moscow, 127276, Russia + +text + + +PhytoKeys + + +2024 + +2024-10-18 + + +247 + + +219 +248 + + + +journal article +10.3897/phytokeys.247.131353 + + + + + +Cocconeis skvortzowii +(Sheshukova) + +Sheshukova +1951 in + + +Proshkina-Lavrenko (ed.) Opredelitel presnovodnykh vodoroslei SSSR 4: 193, figs 104 a – c (with indirect reference; with authorship of basionym “ Skv. ”) emend. Gogorev & Yurchak + + + + + + + +Cocconeis placentula +Ehrenberg +var. skvortzowii +Skabichevskij ex + +Sheshukova +1950 in + + + +Proshkina-Lavrenko (ed.) +Diatomovyi analiz +3: 86, pl. 30, figs 10 a, b (with indirect reference; as combination with authorship “ (Skv.) Skabitsch. ”). Basionym. + + + + + + +Cocconeis placentula +Ehrenberg +var. baikalensis +Skvortzov +1937 in + + +Philippine Journal of Science +, +C +62 (3): 310, pl. 5, figs 5, 7, 8, illegitimate name, later homonym of + +C. placentula var. baicalensis +Skvortzov & K. I. Meyer 1928 + +. Replaced synonym. + + + + + +≡ + +Cocconeis placentula +Ehrenberg +var. sibirica +Skabichevskij +1952 in + + + +Botanicheskie materialy otdela sporovykh rasteniy Botanicheskogo instituta imeni +V +. L. Komarova + +8: 36 (as combination with authorship of basionym “ Skv. ”), illegitimate superfluous name. ≡ + +Cocconeis placentula +Ehrenberg +subsp. sibirica +Skabichevskij +1977 in + +Prirodnye kompleksy nizshikh rastenii Zapadnoi Sibiri +: 127, fig. 2, 9–11 (as combination with authorship of basionym “ Skv. ”). Synonyms. + + + + + +Type materials. + + + + +Lectotype + +• (designated here): Skvortzov, 1937, Philippine Journal of Science, Section C 62 (3): 310, Pl. 5, figs 7, 8 + +. + + + + +Epitype + +• (designated here): figures here represented by Fig. +18 C +( +Baikal +, specimen +BL 15645 +, leg. +A. P. Skabichevsky +, + +20 July 1965 + +) + +. + + + + +Type locality. + + +Russia +, +Siberia +, +Lake Baikal +, +Olhon Gate +, +Boguchanskaya Gulf +, +Cape Elokhin +, +Cape Kotelnikovskiy +. + + + + +Description. + + +LM +(n = 17) (Fig. +16 A – Q +). Valves lanceolate-elliptical, 8.9–16.1 μm in length (mean 12.7), 5.6–9.0 μm in breadth (mean 7.1). Length to breadth ratio 1.5–2.0: 1 (mean 1.8: 1). +RV +with straight raphe, +SV +with broad lanceolate axial area. On +RV +20–24 striae in 10 μm (mean 22), on +SV +– +18–23 in +10 μm (mean 21.4). Often +SV +with “ ghost raphe ”, so such valves similar to +RV +in view. Valvocopula closed or open, with sparsely spaced fimbriae. + + + + + + + +Cocconeis skvortzowii + +A – C +raphe valve +D – Q +sternum valve +D – O, Q +valve with ghost raphe. +LM +. Slides No. BL 18566 – BL 18675, Island Bolshoy Ushkaniy. Scale bar: 10 μm. + + + +SEM +(n = 17). Valves from elliptical to linear-elliptical, 11.6–27.0 μm in length (mean 14.7–16.7), +6.3–17.7 in +breadth (mean 9.1–10.5). Length to breadth ratio 1.3–1.9: 1 (mean 1.6: 1). + + +RV +(n = 9). Valves concave, with slightly convex middle part. Axial area narrowly linear or indistinguishable. Striae uniseriate, +21–24 in +10 μm (mean 22.7). Areolae rounded or unevenly rounded, +22–33 in +10 μm of stria (mean 29.1), absent at valve apices. Valve mantle (contra mantle) slightly reversed. + + +RV +, external view (Figs +17 A – C +, +19 A – C +). Central area absent. Raphe straight, proximal endings slightly widened, distal endings more widened. Striae weakly radial, sometimes interrupted by clear or weakly defined narrow submarginal hyaline strips. Areolae increased in size and more densely located toward valve edge. Marginal ridge wider, 0.4–1.0 μm in breadth, and more distinct than submarginal hyaline strips. + + + + + + + +Cocconeis skvortzowii + +A – C +raphe valve, external view +C +Lower valve (arrowhead) +D – F +sternum valve +D, E +external view +F +internal view. +SEM +A, C +specimen No. BL 15646, Island Bolshoy Ushkaniy +B, D – F +specimen No. BL 15645, Island Bolshoy Ushkaniy. Scale bars: 3 µm ( +A, B, D +); 5 µm ( +C +); 6 µm ( +E +); 8 µm ( +F +). + + + +RV +, internal view (Fig. +19 D +). Central area small, round. Proximal raphe endings directed opposite, distal endings form small helictoglossae. Areolae equal in size. + + + +RVVC + +. Valvocopula closed, up to 1.3 μm in breadth, with straight or weakly curved fimbriae, up to 1.3–1.6 μm high, +7–8 in +10 μm. + + +SV +(n = 8). Valves convex, with concave middle part. Axial area usually wide, lanceolate, rarely narrowly or broadly lanceolate, with often ghost raphe. Central area absent. Striae uniseriate, +13–20 in +10 μm (mean 17.6), consisted of 2–4 elongated areolae. + + +SV +, external view (Figs +17 D, E +, +18 A, B +). Openings of areolae slit-like, usually located in depression. Axial area often with ghost areolae (small depressions) located in “ striae ” or randomly. + + + + + + + +Cocconeis skvortzowii + +A – F +sternum valve +A, B +external view +B +sternum with ghost raphe and ghost areolae +C, D +internal view. +SEM +. Specimen No. BL 15645, Island Bolshoy Ushkaniy. Scale bars: 4 µm ( +A, B, D +); 5 µm ( +C +). + + + + + + + + +Cocconeis skvortzowii + +A – D +raphe valve +A – C +external view +D +valve with valvocopula, internal view. +SEM +A, B +specimen No. 336, Boguchanskaya Gulf +C +specimen No. 318, Kotelnikovskiy Mayak +D +Cape Elokhin. Scale bars: 2 µm ( +A – C +); 5 µm ( +D +). + + + +SV +, internal view (Figs +17 F +, +18 C, D +). At edge, striae consisted of 1–2 rounded or elongated areolae, divided into 1–2 parts by thin or thickened baffle. Areolae rounded or irregularly rounded near axial area, in 2–3 (up to 5) curving apical rows (distance between areolae in stria different). Adjacent “ postmacroareolae ” delimited by small ribs and sometimes extended up to axial area. + +There are no data on copulae, except valvocopulae. + + + +Comments. + + +Our data differ from the data of Skvortsov and Skabichevsky (Table +4 +) in the following: the range of valve length and width has been increased, namely, the minimal size of the studied valves is less than those noted in the literature; the stria density on the +RV +corresponds to the previous data, but density on the +SV +has been increased. Data in the literature available on areola density in stria most likely refer to a +SV +; our data obtained are significantly higher and refer to a +RV +. + + +Valves shown in Figs +17 D, E +, +18 A, B +are somewhat similar to + +Cocconeis margaritata +Riaux-Gobin & Al-Handal + +and + +Cocconeis +spp. + +( +Riaux-Gobin et al. 2010 +) according to the areolae pattern on external surface of the +SV +, namely, the openings of areolae are slit-like and located in a depression. + + +A comparison of + +Cocconeis skvortzowii + +with related species (Table +4 +) showed that the species is externally similar to small valves of + +C. pseudothumensis + +(including the ratio of valve length to breadth), but differs greatly in the stria density on the +RV +. The same results can be seen for + +C. neothumensis + +as well as the + +C. diminuta + +/ + +C. neodiminuta + +complex. + + +The comparative analysis shows similarity / overlapping in stria density of + +Cocconeis skvortzowii + +with + +C. lineata + +and + +C. pseudolineata + +. But two last species have the larger size of valve compared to + +C. skvortzowii + +, and, accordingly, a larger length-to-breadth ratio. Data on the stria density on the +SV +in + +C. lineata + +are quite contradictory from different references, which most likely indicates a complex of several species. If we take into account only data on the +epitype +of + +C. lineata + +, then their stria density is lower than that of + +C. skvortzowii + +. + + +Two species, + +Cocconeis disculus + +and + +C. euglypta + +, differ from + +C. skvortzowii + +in both valve shape and +SV +structure, namely, in the number of apical rows of areolae. + + +A direct reference to the location of + +Cocconeis placentula +Ehrenb. +var. baicalensis + +is absent in +Skvortzow and Meyer (1928) +: “ The list is published without reference to the place where a certain species had been found ”. However, the locations of 36 samples are given in their publication, of which later +Meyer (1930 +, 341) indicated 8 typical locations for this variety (Table +1 +). + + +The three permanent slides with the date given in the protologue, and one more with a later date are deposited in the +LE +diatom collection. Slides No. 15 and 16 (according to the numbering of +Skvortzow and Meyer 1928 +, 2) are labelled as the village of Merkusheva (“ village Merkutov ”), on the label of third one it is given “ d. Merkushevo [Merkusheva]. ” The exact location (with coordinates) was established using a 1912 map ( +http://www.etomesto.ru/map-chita_zabaykalskaya-oblast-1912 +). Reliable and abundant findings of + +Cocconeis baicalensis + +were not identified when studying these slides in +LM +. + + +Also, in the Diatom collection +LE +there is authentic material collected by K. I. Meyer in 1921–1928 (35 samples, Table +1 +), including 9 samples (data +June 30 1926 +, or no data), the locations of which are indicated in +Skvortzow and Meyer (1928) +and +Meyer (1930) +. The last ones are used to make permanent slides stored in +LE +, in two of them ( +LE +A 0004242 – +LE +A 0004245) clear and numerous valves of + +Cocconeis baicalensis + +were found. + + +Skabichevsky’s material (Table +1 +) was studied in +LM +and +SEM +to clarify the morphology and taxonomy of + +Cocconeis baicalensis + +, since many morphological characters and elements of the valve are not satisfactory when studied in +LM +. We choose +SEM +photograph Fig. +9 C +, as the +epitype +of + +C. baicalensis + +, which clearly show the morphological features of the +RV +in the internal view, namely its 3 D-shape, density and arrangement of striae, shape and size of hyaline areas, poorly represented in the type material. Additionally, figs 8 A, 10 A, 12 C show the same of the +RV +in the external view and +SV +in the external and internal view. + + + + \ No newline at end of file