Abstract
A new Gomphonema species is described from the Shiwan Mts. in Guangxi Zhuang Autonomous Region, Southwest China. This new species differs from other known members of the genus Gomphonema by its linear-lanceolate shape, wide axial area, slit-like areolae openings, one short spine at the headpole externally, and large pseudoseptum at each end internally. Morphological features of the new species are detailed with light and scanning electron microscopy. Comparisons with other similar species are made. This species appears to be closely related to other species of this genus possessing wide axial areas.
References
Almeida, S.F.P., Craveiro, S.C. & Calado, A.J. (2009) On the identity and distribution in northern Portugal of three Gomphonema species currently misidentified as Gomphonema clevei. Diatom Research 25: 13–27.
https://doi.org/10.1080/0269249X.2010.9705826
Bory de Saint-Vincent, J.B.M. (1822–1831) Dictionnaire Classique d’Histoire Naturelle. Paris. Rey & Gravier, libraires-éditeurs; Baudouin Frères, libraires-éditeurs vol: 1–17.
Cholnoky, B.J. (1953) Diatomeenassoziationen aus dem Hennops-rivier bei Pretoria. Verhandlugen der Zoologisch-Botanischen Gesellschaft in Wien 93: 134–148.
Cleve, P.T. (1894) Synopsis of the Naviculoid Diatoms, Part I. Kongliga Svenska-Vetenskaps Akademiens Handlingar 26 (2): 1–194.
Ehrenberg, C.G. (1832) Über die Entwicklung und Lebensdauer der Infusionsthiere; nebst ferneren Beiträgen zu einer Vergleichung ihrer organischen Systeme. Abhandlungen der Königlichen Akademie der Wissenschaften zu Berlin 1831: 1–154.
Fore, L.S. & Grafe, C. (2002) Using diatoms to assess the biological condition of large rivers in Idaho (U.S.A.). Freshwater Biology 47 (10): 2015–2037.
https://doi.org/10.1046/j.1365-2427.2002.00948.x
Frenguelli, J. (1941) Diatomeas del Río de la Plata. Revista del Museo de la Plata, Nueva Serie, Sección Botánica 3: 213–334.
Fricke, F. (1902) Atlas der Diatomaceen-kunde. Leipzig. O.R. Reisland Series V (Heft 59–60), pls. 233–240.
Fricke, F. (1904) Atlas der Diatomaceen-kunde. Leipzig. O.R. Reisland Series VI (Heft 62–63), pls. 245–252.
Ge, L., Liu, Y., Kociolek, J.P. & Fan, Y.W. (2015) A new species of Gomphonema (Bacillariophyta) from Xingkai Lake, China. Phytotaxa 175 (5): 249–255.
https://doi.org/10.11646/phytotaxa.175.5.2
Glushchenko, A.M., Kulikovskiy, M.S. & Kociolek, J.P. (2017) New diatom species from Gomphonema subtile-group in Southeast Asia. Phytotaxa 329 (3): 223–232.
https://doi.org/10.11646/phytotaxa.329.3.3
Guiry, M.D. & Guiry, G.M. (2018) Algaebase. National University of Ireland, Galway. Available from: http://www.algaebase.org/search/genus/detail/?genus_id=oe9b80073798c5823 (accessed 21 May 2018)
Hustedt, F. (1938) Systematische und ökologische Untersuchungen über die Diatomeenflora von Java, Bali und Sumatra nach dem Material der Deutschen Limnologischen Sunda-Expedition. Archiv für Hydrobiologie, Supplement 15: 131–177, 187–295, 393–506, 638–790.
Hustedt, F. (1965) Neue und wenig bekannte diatomeen. IX. Süßwasserdiatomeen aus Brasilien, insbesondere des Amazonasgebietes. Internationale Revue der gesamten Hydrobiologie 50 (3): 391–410.
https://doi.org/10.1002/iroh.19650500305
Jiang, Z., Liu, Y., Kociolek, J.P. & Fan, Y. (2018) One new Gomphonema (Bacillariophyta) species from Yunnan Province, China. Phytotaxa 349 (3): 257–264.
https://doi.org/10.11646/phytotaxa.349.3.6
Jüttner, I., Kociolek, J.P., Gurung, S., Gurung, A., Sharma, C.M., Levkov, Z., Williams, D.M. & Ector, L. (2018) The genus Gomphonema (Bacillariophyta) in Rara Lake, Nepal: taxonomy, morphology, habitat distribution and description of five new species, and a new record for Gomphoneis qii. Diatom Research 33 (3): 283–320.
https://doi.org/10.1080/0269249X.2018.1528182
Jüttner, I., Reichardt, E. & Cox, E.J. (2004) Taxonomy and ecology of some new Gomphonema species common in Himalayan streams. Diatom Research 19 (2): 235–264.
https://doi.org/10.1080/0269249X.2004.9705873
Karthick, B. & Kociolek, J.P. (2012) Reconsideration of the Gomphonema (Bacillariophyceae) species from Kolhapur, Northern Western Ghats, India: Taxonomy, typification and biogeography of the species reported by H.P. Gandhi. Phycological Research 60: 179–198.
https://doi.org/10.1111/j.1440-1835.2012.00649.x
Karthick, B., Kociolek, J.P., Mahesh, M.K. & Ramachandra, T.V. (2011) The diatom genus Gomphonema Ehrenberg in India: Checklist and description of three new species. Nova Hedwigia 93 (1–2): 211–236.
https://doi.org/10.1127/0029-5035/2011/0093-0211
Karthick, B., Kociolek, J.P., Taylor, J.C. & Cocquyt, C. (2016) Gomphonema grande sp. nov., a new diatom (Bacillariophyta) from the Democratic Republic of the Congo, Tropical Africa. Phytotaxa 245 (3): 187–196.
https://doi.org/10.11646/phytotaxa.245.3.1
Karthick, B., Nautiyal, R., Kociolek, J.P. & Ramachandra, T.V. (2015) Two new species of Gomphonema (Bacillariophyceae) from Doon Valley, Uttarakhand, India. Nova Hedwigia, Beiheft 144: 165–174.
Kociolek, J.P. & Rosen, B.H. (1984) Observations on North American Gomphoneis (Bacillariophyceae). I. Valve ultrastructure of G. mammilla with comment on the taxonomic status of the genus. Journal of Phycology 20: 361–368.
https://doi.org/10.1111/j.0022-3646.1984.00361.x
Kociolek, J.P. & Stoermer, E.F. (1991) New and interesting Gomphonema (Bacillariophyceae) species from East Africa. Proceeding of the Academy of Natural Sciences of Philadephia 47: 275–288.
Kociolek, J.P. & Stoermer, E.F. (1988) Taxonomy, ultrastructure, and distribution of Gomphoneis herculeana, G. eriense and closely related species. Proceeding of the Academy of Natural Sciences of Philadephia 140: 24–97.
Kociolek, J.P. & Stoermer, E.F. (1993) Freshwater gomphonemoid diatom phylogeny: preliminary results. Hydrobiologia 269/270: 31–38.
https://doi.org/10.1007/BF00028001
Kociolek, J.P., Balasubramanian, K., Blanco, S., Coste, M., Ector, L., Liu, Y., Kulikovskiy, M., Lundholm, N., Ludwig, T., Potapova, M., Rimet, F., Sabbe, K., Sala, S., Sar, E., Taylor, J., Van de Vijver, B., Wetzel, C.E., Williams, D.M., Witkowski, A. & Witkowski, J. (2020) DiatomBase. Available from: http://www.diatombase.org (accessed 15 June 2019)
Kociolek, J.P., Glushchenko, A. & Kulikovskiy, M. (2015a) Typification, valve ultrastructure, and systematic position of Gomphonema gomphopleuroides Amossé ex Kociolek, Glushchenko and Kulikovskiy, an endemic diatom from Southeast Asia. Diatom Research 30: 247–255.
https://doi.org/10.1080/0269249X.2015.1072583
Kociolek, J.P., Woodward, J. & Graeff, C. (2016) New and endemic Gomphonema C.G. Ehrenberg (Bacillariophyceae) species from Hawaii. Nova Hedwigia 102: 141‒171.
https://doi.org/10.1127/nova_hedwigia/2015/0296
Kociolek, J.P., You, Q.M., Wang, Q.X. & Liu, Q. (2015b) A consideration of some interesting freshwater gomphonemoid diatoms from North America and China, and the description of Gomphosinica gen. nov. Nova Hedwigia, Beiheft 144: 175–198.
Krammer, K. (1999) Validierung von Cymbopleura nov. gen. In: Lange-Bertalot, H. (Ed.) Iconographia Diatomologica. Vol. 6. Koeltz Scientific Books, Königstein, Germany, 292 pp.
Kulikovskiy, M. & Kociolek, J.P. (2014) The diatom genus Gomphonema Ehrenberg in Lake Baikal. I. Morphology and taxonomic history of two endemic species. Nova Hedwigia, Beiheft 143: 507–518.
Kulikovskiy, M., Kapustin, D., Glushchenko, A., Sidelev, S., Maltsev, Y., Gusev, E., Kezlya, E., Shkurina, N., Kuznetsova, I. & Kociolek, P. (2019) Morphological and molecular investigation of Gomphonema longissimum and related taxa from Malili lakes (Indonesia) with comments on diatom evolution in ancient lakes. European Journal of Phycology 2: 147–161.
https://doi.org/10.1080/09670262.2019.1664771
Kulikovskiy, M., Kociolek, J.P., Solak, C.N. & Kuznetsova, I. (2015) The diatoms genus Gomphonema Ehrenberg in Lake Baikal. II. Revision of taxa from Gomphonema acuminatum and Gomphonema truncatum-capitatum complexes. Phytotaxa 233 (3): 251–272.
https://doi.org/10.11646/phytotaxa.233.3.3
Kützing, F.T. (1833) Synopsis Diatomacearum oder Versuch einer systematischen Zusammens-tellung der Diatomeen. Linnaea 8 (5): 529–620.
https://doi.org/10.5962/bhl.title.65634
Kützing, F.T. (1836) Algarum Aquae Dulcis Germanicarum. Decas XVI. Collegit Fridericus Traugott Kutzing, Soc. Bot. Ratisbon. Sodalis. Halis Saxonum in Commissis C.A. Schwetschkii et Fil. 16: 1–4.
Kützing, F.T. (1844) Die kieselschaligen. Bacillarien oder Diatomeen. W.Köhne, Nordhausen, 152 pp.
https://doi.org/10.5962/bhl.title.64360
Levkov, Z., Mitic-Kopanja, D. & Reichardt, E. (2016) The diatom genus Gomphonema from the Republic of Macedonia. Diatoms of Europe 8: 1–552.
Li, Y.L., Kociolek, J.P. & Metzeltin, D. (2010) Gomphonema sichuanensis Li & Kociolek sp. nov. and Gomphonema heilongtanensis Li, Kociolek et Metzeltin sp. nov. from two high mountain Lakes, China. Diatom Research 25 (1): 87–98.
https://doi.org/10.1080/0269249X.2010.9705831
Liao, M.N. & Li, Y.L. (2018) One new Gomphonema Ehrenberg (Bacillariophyta) species from a high mountain lake in Yunnan Province, China. Phytotaxa 361 (1): 123–130.
https://doi.org/10.11646/phytotaxa.361.1.11
Liu, Y., Kociolek, J.P., Glushchenko, A., Kulikovskiy, M. & Fan, Y.W. (2018) A new genus of Eunotiales (Bacillariophyta, Bacillariophyceae: Peroniaceae), Sinoperonia, from Southeast Asia, exhibiting remarkable phenotypic plasticity with regard to the raphe system. Phycologia 57 (2): 147–158.
https://doi.org/10.2216/17-21.1
Liu, Y., Kociolek, J.P., Liu, Q., Tan, X. & Fan, Y.W. (2020a) A New Aerophilic Neidium Pfister (Neidiaceae, Bacillariophyta) species from Guangxi Zhuang Autonomous Region, China. Phytotaxa 432 (2): 171–180.
https://doi.org/10.11646/phytotaxa.432.2.6
Liu, Y., Kociolek, J.P., Lu, X.-X. & Fan, Y.W. (2020b) Valve ultrastructure of two species of the diatom genus Gompohonema Ehrenberg (Bacillariophyta) from Yunnan Province, China. Fottea, Olomouc 20 (1): 25–35.
https://doi.org/10.5507/fot.2019.012
Lowe, R.L. & Kociolek, J.P. (1984) New and rare diatoms from Great Smoky Mountains National Park. Nova Hedwigia 39: 465–476
Medlin, L.K. & Kaczmarska, I. (2004) Evolution of the diatoms: V.Morphological and cytological support for the major clades and a taxonomic revision. Phycologia 43: 245–270.
https://doi.org/10.2216/i0031-8884-43-3-245.1
Metzeltin, D. & Lange-Bertalot, H. (1998) Tropical diatoms of South America I. Iconographia Diatomologica 5: 1–695.
Müller, O. (1905) Bacillariaceen aus dem Nyassaland und einigen benachbarten Gebieten. III Folge, Naviculoideae-Naviculeae-Gomphoneminae-Gomphocymbellinae-Cymbellinae. Nitzschioideae-Nitzschieae. (Engler’s) Botanische Jahrbucher fur Systematik, Pflanzengeschichte, und Pflanzengeographie. Leipzig 36 (1/2):137–206.
Østrup, E. (1902) Freshwater Diatoms In: Flora of Koh Chang. Part VII. Contributions to the knowledge of the gulf of Siam.John Schmidt (ed.). Preliminary Rept. Bot., Results Dan. Exped. to Siam (1899–1900)]. Botanisk Tidsskrift 25 (1): 28–41.
Patrick, R.M. & Reimer, C.W. (1975) The Diatoms of the United States, exclusive of Alaska and Hawaii, V. 2. Monographs of the Academy of Natural Sciences of Philadelphia 13. Academy of Natural Sciences of Philadelphia, U.S.A., 213 pp.
Potapova, M. & Charles, D.F. (2003) Distribution of benthic diatoms in U.S. rivers in relation to conductivity and ionic composition. Freshwater Biology 48 (8): 1311–1328.
https://doi.org/10.1046/j.1365-2427.2003.01080.x
Rabenhorst, L. (1853) Die Süsswasser-Diatomaceen (Bacillarien) für Freunde der Mikroskopie. Eduard Kummer, Leipzig, 72 pp.
https://doi.org/10.5962/bhl.title.8348
Reichardt, E. (2005) Die Identität von Gomphonema entolejum Østrup (Bacillariophyceae) sowie. Revisionähnlicher Arten mit weiter Axialarea. Nova Hedwigia 81: 115–144.
https://doi.org/10.1127/0029-5035/2005/0081-0115
Reichardt, E. (2015) Taxonomy and distribution of Gomphonema subtile Ehrenberg (Bacillariophyceae) and six related taxa. Fottea 15: 27–38.
https://doi.org/10.5507/fot.2015.003
Round, F.E., Crawford, R.M. & Mann, D.G. (1990) The Diatoms. Biology & Morphology of the genera. Cambridge University Press, Cambridge, 747 pp.
Skuja, H. (1937) Algae. Symbolae Sinicae: botanische Ergebnisse der Expedition der Akademie der Wissenschaften in Wein nach Sudwest-China, 1914–1918. Wien, 105 pp.
Skvortzow, B.W. (1937) Bottom diatoms from Olhon Gate of Baikal Lake, Siberia. Philippine Journal of Science 62: 293–377.
Stancheva, R., Sheath, R.G. & Kociolek, J.P. (2016) New freshwater Gomphonemoid diatoms from streams in the Sierra Nevad Mountains, California, USA. Phytotaxa 289 (2): 118–134.
https://doi.org/10.11646/phytotaxa.289.2.2
Van Dam, H., Mertens, A. & Sinkeldam, J. (1994) A coded checklist and ecological indicator values of freshwater diatoms from the Netherlands. Netherlands Journal of Aquatic Ecology 28 (1): 117–133.
https://doi.org/10.1007/BF02334251
You, Q., Wang, Q. & Kociolek, J.P. (2015) New Gomphonema Ehrenberg (Bacillariophyceae: Gomphonemataceae) species from Xinjiang Province, China. Diatom Research 30 (1): 1–12.
https://doi.org/10.1080/0269249X.2014.952783
Zhang, W., Shang, G.X., Kociolek, J.P., Wang, L.Q. & Tan, H.X. (2018) Gomphonema bicepiformis sp. nov., a new diatom species (Bacillariophyta) from a stream in Zhejiang, China. Phytotaxa 375 (4): 274–282.
https://doi.org/10.11646/phytotaxa.375.4.3
Zhang, W., Xu, X.Y., Kociolek, J.P. & Wang, L.Q. (2016) Gomphonema shanghaiensis sp. nov., a new diatom species (Bacillariophyta) from a river in Shanghai, China. Phytotaxa 278 (1): 29–38.