Publications by authors named "John P Kociolek"

3 Publications

  • Page 1 of 1

Marine and brackish D.G.Mann (Bacillariophyta) species from the Java Sea and South China Sea coasts with the description of three new species.

PhytoKeys 2021 22;183:115-142. Epub 2021 Oct 22.

Université de Nantes, EA 2160 Mer - Molécules - Santé 2, Rue de la Houssinière, 44322 Nantes, France.

In this study, samples were collected from the Java Sea coasts, from the South China Sea in Hainan Island coasts and Quảng Yên region and Rú Chá mangrove near Hue in Central Vietnam. In studied samples a total of eight species have been observed. Three of the taxa studied are described herein as species new to science - , and Under light microscopy (LM) and are similar with rhombic-lanceolate to rhombic/ elliptic-lanceolate to elliptic valve shapes and narrowly rounded apices. Both species can be easily distinguished by stria density (higher density in ). Under SEM is characterized by cribrate areola occlusions, a character thus far observed only in three established species. The remaining species of the whole genus known thus far are characterized by hymenate areola. Similar morphology species have been observed from tropical mangrove forests from Madagascar but they all can be easily distinguished based on the lack of grooves in the central area. The third species - has rhombic-elliptic to rhombic-lanceolate valves with broadly rounded to slightly protracted apices in larger specimens. This species has a relatively broad central area. Also unique among brackish-water is the small, rounded stigma positioned almost midway between the valve center and valve margin. In the habitats from which the new species are described we also identified five established taxa including, , , , and . For those species we provide detailed SEM characteristics of valve ultrastructure, as well as the range of environmental conditions and geographic distribution within the study area.
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http://dx.doi.org/10.3897/phytokeys.183.71049DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8556211PMC
October 2021

sp. nov. (Bacillariophyceae, Cymbellales), a new diatom from the ancient lake Matano (Sulawesi, Indonesia).

PhytoKeys 2021 17;175:1-11. Epub 2021 Mar 17.

Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, 127276, Moscow, Russia Timiryazev Institute of Plant Physiology, Russian Academy of Sciences Moscow Russia.

A new species, , is described from the ancient lake Matano, Sulawesi island, Indonesia. The morphology of this species was studied by means of light and scanning electron microscopy. has a remarkable valve ultrastructure. The valve surface is ornamented with numerous longitudinal siliceous ribs and siliceous verrucae. Valve face delineated from the mantle by a thickened marginal ridge. Raised sterna border the raphe branches. Raphe is distinctly undulate with distal ends hooked strongly to the ventral side. The only similar species to is described from New Caledonia. Comparison of both taxa is given and is transferred to . The taxonomic placement of both taxa is evaluated, and the phenomenon of external siliceous ornamentation is discussed.
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http://dx.doi.org/10.3897/phytokeys.175.61044DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7990855PMC
March 2021

UNICELL ONTOGENY and PHYLOGENY: EXAMPLES FROM THE DIATOMS.

Cladistics 1987 Sep;3(3):274-284

Department of Botany, British Museum (Natural History), Cromwell Road, London SW7 5BD, U.K.

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http://dx.doi.org/10.1111/j.1096-0031.1987.tb00511.xDOI Listing
September 1987
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