From 8f7bd7ae1027b168a918f5ff70731501a665aa2f Mon Sep 17 00:00:00 2001 From: ggserver Date: Fri, 30 Aug 2024 00:29:42 +0000 Subject: [PATCH] Add updates up until 2024-08-30 00:24:33 --- ...l => FA39DB3EFFFBFFA8ECFE0D12FDE1FE38.xml} | 399 +++++++++++++++--- 1 file changed, 336 insertions(+), 63 deletions(-) rename data/FA/39/DB/{FA39DB3EFFFBFFA1ECFE0D12FED7F847.xml => FA39DB3EFFFBFFA8ECFE0D12FDE1FE38.xml} (55%) diff --git a/data/FA/39/DB/FA39DB3EFFFBFFA1ECFE0D12FED7F847.xml b/data/FA/39/DB/FA39DB3EFFFBFFA8ECFE0D12FDE1FE38.xml similarity index 55% rename from data/FA/39/DB/FA39DB3EFFFBFFA1ECFE0D12FED7F847.xml rename to data/FA/39/DB/FA39DB3EFFFBFFA8ECFE0D12FDE1FE38.xml index 3ca0f4031c1..e6c105c4a74 100644 --- a/data/FA/39/DB/FA39DB3EFFFBFFA1ECFE0D12FED7F847.xml +++ b/data/FA/39/DB/FA39DB3EFFFBFFA8ECFE0D12FDE1FE38.xml @@ -1,78 +1,78 @@ - - - -Orthoseira variabilis sp. nov., a new diatom from a snow patch in Potter Cove, King George Island, Antarctica + + + +Orthoseira variabilis sp. nov., a new diatom from a snow patch in Potter Cove, King George Island, Antarctica - - -Author + + +Author -Cefarelli, Adrián O. -Instituto Multidisciplinario para la Investigación y el Desarrollo Productivo y Social de la Cuenca Golfo San Jorge, CONICET - UNPSJB, Ruta Provincial 1, Km 4, 9000, Comodoro Rivadavia, Argentina & Instituto de Desarrollo Costero, Universidad Nacional de la Patagonia San Juan Bosco, Ruta Provincial 1, Km 4, 9000, Comodoro Rivadavia, Argentina +Cefarelli, Adrián O. +Instituto Multidisciplinario para la Investigación y el Desarrollo Productivo y Social de la Cuenca Golfo San Jorge, CONICET - UNPSJB, Ruta Provincial 1, Km 4, 9000, Comodoro Rivadavia, Argentina & Instituto de Desarrollo Costero, Universidad Nacional de la Patagonia San Juan Bosco, Ruta Provincial 1, Km 4, 9000, Comodoro Rivadavia, Argentina - - -Author + + +Author -Guerrero, José M. -0000-0002-4733-2753 -División Ficología “ Dr. Sebastián A. Guarrera ”, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Paseo del Bosque s / n, B 1900 FWA, La Plata, Argentina -guerrero@fcnym.unlp.edu.ar +Guerrero, José M. +0000-0002-4733-2753 +División Ficología “ Dr. Sebastián A. Guarrera ”, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Paseo del Bosque s / n, B 1900 FWA, La Plata, Argentina +guerrero@fcnym.unlp.edu.ar - - -Author + + +Author -Quartino, Liliana -Departamento de Biología Costera, Instituto Antártico Argentino, 25 de mayo 1143, San Martín, Buenos Aires, Argentina & Museo Argentino de Ciencias Naturales “ B. Rivadavia ”, Av. A. Gallardo 470, C 1405 DJR, Buenos Aires, Argentina +Quartino, Liliana +Departamento de Biología Costera, Instituto Antártico Argentino, 25 de mayo 1143, San Martín, Buenos Aires, Argentina & Museo Argentino de Ciencias Naturales “ B. Rivadavia ”, Av. A. Gallardo 470, C 1405 DJR, Buenos Aires, Argentina - - -Author + + +Author -Campana, Gabriela -Departamento de Biología Costera, Instituto Antártico Argentino, 25 de mayo 1143, San Martín, Buenos Aires, Argentina & Departamento de Ciencias Básicas, Universidad Nacional de Luján, Ruta 5 y Av. Constitución, CP 6700, Luján, Buenos Aires, Argentina +Campana, Gabriela +Departamento de Biología Costera, Instituto Antártico Argentino, 25 de mayo 1143, San Martín, Buenos Aires, Argentina & Departamento de Ciencias Básicas, Universidad Nacional de Luján, Ruta 5 y Av. Constitución, CP 6700, Luján, Buenos Aires, Argentina - - -Author + + +Author -Vouilloud, Amelia A. -0000-0002-9709-5127 -División Ficología “ Dr. Sebastián A. Guarrera ”, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Paseo del Bosque s / n, B 1900 FWA, La Plata, Argentina -avouilloud@fcnym.unlp.edu.ar +Vouilloud, Amelia A. +0000-0002-9709-5127 +División Ficología “ Dr. Sebastián A. Guarrera ”, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Paseo del Bosque s / n, B 1900 FWA, La Plata, Argentina +avouilloud@fcnym.unlp.edu.ar -text - - -Phytotaxa +text + + +Phytotaxa - -2024 - -2024-06-21 + +2024 + +2024-06-21 - -655 + +655 - -1 + +1 - -37 -53 + +37 +53 - -http://dx.doi.org/10.11646/phytotaxa.655.1.3 + +http://dx.doi.org/10.11646/phytotaxa.655.1.3 -journal article -10.11646/phytotaxa.655.1.3 -1179-3163 -13217179 +journal article +10.11646/phytotaxa.655.1.3 +1179-3163 +13217179 - + @@ -92,7 +92,7 @@ Cefarelli, Guerrero & Vouilloud - + Description @@ -138,16 +138,15 @@ SEM ( Figs 49–84 ): - -Externally +Externally , valve face varying from almost flat to convex ( Figs 49–54 ). -Carinoportulae +Carinoportulae opening surrounded by raised rims forming incomplete semicircular collars ( Figs 55, 56 ). -Central area +Central area ornamented with irregular silica ridges located between the carinoportulae ( Fig. 56 ). @@ -166,9 +165,7 @@ openings surrounded by distinct rims, irregularly silicified and with small spin types of areolae occurring in the same valve. When present, spines simple, solid, conical and stellate at the base ( Figs 59, 60 -). Areolae more densely packed forming a sort of pore field at the valve face/mantle junction in most valves - -; at intervals, beneath the pore fields, mantle striae often bifurcated ( +). Areolae more densely packed forming a sort of pore field at the valve face/mantle junction in most valves; at intervals, beneath the pore fields, mantle striae often bifurcated ( Figs 61, 65 ). On the mantle portion between the step and the collum, interstriae raised and areola openings between them round to apically elongated and without raised margins ( Figs 61, 62, 64, 65 @@ -216,6 +213,282 @@ Cingulum consisting of at least four open and fimbriate copulae ( 82, 83 ), with a row of small poroids in the advalvar margin and poroids scattered or arranged in somewhat irregular rows perpendicular to pervalvar axis. + + +FIGURES 15–48. + +Orthoseira variabilis +sp. nov. + +LM. Specimens in valve view. Figs 24–25: Holotype. Figs 46–48. Same specimen in three different focus levels; note the marginal spines. Figures marked with “=” are the same valves with a different focus. Scale bar: 10 µm (Scale bar is the same for Figs 15–45 and for Figs 46–48). + + + + +Morphometric data: + + + +Valve diameter: 11.0–36.5 μm ( +x += 20.0 μm, +n += 154). Valve stria density: +16–24 in +10 µm ( +x += 19, +n += 119). Valve areola density: +15–23 in +10 µm ( +x += 18.5, +n += 100). Mantle height: 7.5–15.5 μm ( +x += 11.0 μm, +n += 31). Mantle stria density: +18–27 in +10 µm ( +x += 23.5, +n += 68). Mantle areola density: +20–31 in +10 µm ( +x += 22.5, +n += 51). Valvocopula exterior width: +x += 5.10 µm ( +n += 22). Density of valvocopula elongated poroid: +13–18 in +10 µm ( +x += 15.5, +n += 31). + + + + +FIGURES 49–60. + +Orthoseira variabilis +sp. nov. + +SEM. Specimens in external view. Figs 49–54. Whole valve views; the arrow in Fig. 52 indicates a patch of smooth area. Figs 55–59. Details of valve surface, showing carinoportulae (Figs 55–56), areolar structure (Figs 56–58), a patch of smooth area (Fig. 58) and marginal spines (Fig. 59, white arrowheads). Fig. 60. Mantle view; note the conic spines at the margin (black arrowheads). Figs 55 and 57 are details of Fig. 53; Fig. 55, rotated. Fig. 56 is a detail of Fig. 54, rotated. Fig. 58 is a detail of Fig. 52, rotated. Fig. 59 is a detail of Fig. 50. Scale bar: 10 µm (Figs 49–54), 5 µm (Fig. 60), 2 µm (Figs 55–59). + + + + +FIGURES 61–65. + +Orthoseira variabilis +sp. nov. + +SEM. Specimens in girdle view. Fig. 61. Valve with pore field (arrow) and raised interstriae on the mantle. Note the collum (white arrowhead) separated from the mantle striae by a smooth area (black arrowhead). Figs 62–65. Whole frustules; note the presence of pore fields, step and collum in the mantle, and the cingulum composed by open, ligulate copulae. Collum (white arrowhead) and smooth area of the mantle (black arrowhead) are also indicated in Fig. 64. Fig. 63 is a detail of Fig. 62, rotated. Scale bar: 10 µm. + + + + +FIGURES 66–78. + +Orthoseira variabilis +sp. nov. + +SEM. Specimens in internal valve view. Figs 66–72. Whole valve views. Note valves with shallow or inconspicuous caverns (arrows). Figs 73–78. Details of valve surface, showing areolar structure, carinoportulae, etched slits (Figs 73–74, arrows), and shallow caverns (Figs 76–78); note small unoccluded perforations among the areolae (arrowheads). Fig. 75 is a detail of Fig. 71, rotated. Fig. 76 is a detail of Fig. 72. Fig. 77 is a detail of Fig. 70. Fig. 78 is a detail of Fig. 66. Scale bar: 10 µm (Figs 66–72), 2 µm (Figs 73–78). + + + + +FIGURES 79–84. + +Orthoseira variabilis +sp. nov. + +SEM. Girdle elements. Fig. 79. Valvocopula with internal silica thickening attached to valve. Fig. 80. Detached open valvocopula. Fig. 81. Broken frustule in internal view showing valve and attached valvocopula with thickened pars interior and poroids. Fig. 82. Open, ligulate copula. Fig. 83. Detail of a copula showing ligula. Fig. 84. Detail of a copula showing tiny poroids and fimbriae. Scale bar: 10 µm (Figs 79–80, 82), 5 µm (Figs 81, 83), 2 µm (Fig. 84). + + + + +Type: +— + +ANTARCTICA +, +King George Island/Isla +25 de +Mayo +, +Potter Cove +coast ( +62.2464° S +, +58.6796° W +), snow patch. +LPC 13325 +, + +February 15, 2017 + +. ( +Holotype +designated here, +specimen +positioned in +England Finder +D39/3, slide 13325(1)!, illustrated in + +Figs +24, 25 + +). + + + + + +Etymology: +The specific epithet + +“ +variabilis + +” refers to the high variability in several morphological features exhibited by the new species. + + + + +Ecology and associated diatom flora: + +Orthoseira variabilis + +was found in dusty snow and associated with mosses in a circumscribed coastal area. The accompanying flora is mostly composed of taxa usually living in aerophilic environments such as several species of + +Chamaepinnularia +Lange-Bertalot & Krammer + +(in +Lange-Bertalot & Metzeltin 1996: 32 +), + +Humidophila +(Lange-Bertalot & Werum) R.L. +Lowe & al. (2014: 352) + +, + +Luticola +D.G.Mann + +(in + +Round +et al. +1990: 670 + +), together with + +Hantzschia amphioxys +(Ehrenberg) Grunow + +(in +Cleve & Grunow 1880: 103 +) and + +Pinnularia borealis +Ehrenberg (1843: 420) + +, among others. Marine diatom species such as + +Fragilariopsis curta +(Van Heurck) +Hustedt (1958: 160) + +, + +F. cylindrus +(Grunow ex Cleve) +Helmcke & Krieger (1954: 17) + +, + +Pseudogomphonema kamtschaticum +(Grunow) Medlin + +(in +Medlin & Round 1986: 216 +), + +Shionodiscus gracilis +(Karsten) +Alverson, Kang & Theriot (2006: 259) + +and + +S. gracilis +var. +expectus +(VanLandingham) +Alverson, Kang & Theriot (2006: 259) + +were also observed denoting a marine influence presumably through wind and sea spray aerosol. + + + + +Remarks: +Some specimens exhibited on their valve faces patches of smooth areas ( +Figs 52, 58 +) that were interpreted as two layers of silica deposition, the upper one being responsible for the spiny rims and rings that surround the external areola openings. + + + +FIGURES 85–94. + +Orthoseira variabilis +sp. nov. + +Figs 85–92. LM. Initial cells. Figs 85–87. Girdle view. Figs 88–92. Valve view. Figs 93–94. SEM. Initial valve. Fig. 93. General view. Fig. 94. Detail of central area of specimen in Fig. 93, rotated; note the numerous and incompletely developed carinoportulae. Figures marked with “=” are the same valves with a different focus. Scale bar: 10 µm (Figs 85–93; scale bar is the same for Figs 85–92), 5 µm (Fig. 94). + + + +Some initial valves and initial cells were observed ( +Figs 85–94 +), with clearly convex valve face ( +Figs 85–87 +), more irregularly arranged striae composed of rimmed areolae, an irregularly-shaped, somewhat bilobate central area, and numerous (up to eight) carinoportulae with incompletely developed collar ( +Figs 88–94 +). +Crawford (1981) +described initial valves as structurally similar to vegetative valves except that they are hemispherical in shape, without distinction between valve face and mantle, and lack spines. He illustrated in his figs 52-55 initial valves of + +Orthoseira +sp. + +that also exhibit a central area with two groups of carinoportulae. Similarly, +Roemer & Rosowski (1980) +documented hemispherical initial valves of + +Orthoseira + +(= + +Melosira + +) + +roeseana + +with multiple (4–10) carinoportulae which are reduced to +3–4 in +vegetative valves. + \ No newline at end of file