Results of INA query

Silva Center for Phycological Documentation: Index Nominum Algarum

The INA is a card file and online reporting system maintained at the Silva Center for Phycological Documentation of the University Herbarium, University of California, Berkeley. It contains nearly 200,000 names of algae (in the broad sense). The BPU is a card file containing bibliographic references pertaining to algal taxonomy.
A working list of algal type specimens at UC is available here

Results from INA database

Name	Author	Source	Citation	Year
PARAPLACONEIS	M.S. Kulikovskiy, H. Lange-Bertalot, & D. Metzeltin in Kulikovskiy et al.	Iconogr. Diatomol.	23: 216	2012
Paraplaconeis ampla	G.V. Pomazkina & E.V. Rodionova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 189, pl. 114 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Paraplaconeis anfracta	G.V. Pomazkina in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 189, pl. 115 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Paraplaconeis arcuata	G.V. Pomazkina & E.V. Rodionova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 189, pl. 116 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Paraplaconeis australis	G.V. Pomazkina & E.V. Rodionova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 190, pl. 117 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Paraplaconeis baicalensis	G.V. Pomazkina & T.A. Sherbakova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 190, pl. 118 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Paraplaconeis baikalensis	(Skvortzov) M.S. Kulikovskiy, D. Metzeltin & H. Lange-Bertalot in Metzeltin et al.	Iconogr. Diatomol.	23: 218	2012
Paraplaconeis compositestria	(Jasnitsky) M.S. Kulikovskiy, D. Metzeltin & H. Lange-Bertalot in Metzeltin et al.	Iconogr. Diatomol.	23: 218	2012
Paraplaconeis cracoviensis	H. Lange-Bertalot & A.Z. Wojtal	Beih. Nova Hedwigia	143: 410, figs. 49-60, 65-67, 80, 81	2014
Paraplaconeis decorata	G.V. Pomazkina in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 190, pl. 120 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Paraplaconeis dimidia	G.V. Pomazkina & T.A. Sherbakova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 190, pl. 121 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Paraplaconeis dissimilis	G.V. Pomazkina & E.V. Rodionova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 190, pl. 122 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Paraplaconeis elongata	G.V. Pomazkina & T.A. Sherbakova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 190, pl. 123 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Paraplaconeis foliaris	G.V. Pomazkina & T.A. Sherbakova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 190, pl. 124 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Paraplaconeis graciosa	M.S. Kulikovskiy, H. Lange-Bertalot & D. Metzeltin in Metzeltin et al.	Iconogr. Diatomol.	23: 218, pl. 133: figs. 1-4	2012
Paraplaconeis interrupta	G.V. Pomazkina & T.A. Sherbakova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 191, pl. 125 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Paraplaconeis kornevae	M.S. Kulikovskiy, E.S. Gusev, & H. Lange-Bertalot in Metzeltin et al.	Iconogr. Diatomol.	23: 219, pl. 135: figs. 8-13; pl. 137: figs. 1-3; pl. 138: figs. 1-5	2012
Paraplaconeis lacustris	G.V. Pomazkina & T.A. Sherbakova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 191, pl. 126 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Paraplaconeis litoralis	G.V. Pomazkina in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 191, pl. 123 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Paraplaconeis macedonica	(Z. Levkov & D. Metzeltin) M.S. Kulikovskiy, D. Metzeltin & H. Lange-Bertalot in Metzeltin et al.	Iconogr. Diatomol.	23: 222	2012
Paraplaconeis maculata	G.V. Pomazkina & T.A. Sherbakova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 191, pl. 128 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Paraplaconeis maculata	M.S. Kulikovskiy & H. Lange-Bertalot in Metzeltin et al.	Iconogr. Diatomol.	23: 222	2012
Paraplaconeis magna	G.V. Pomazkina & T.A. Sherbakova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 191, pl. 129 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Paraplaconeis ohridana	(Z. Levkov & D. Metzeltin) M.S. Kulikovskiy, D. Metzeltin & H. Lange-Bertalot in Metzeltin et al.	Iconogr. Diatomol.	23: 222	2012
Paraplaconeis placentula	(Ehrenberg) M.S. Kulikovskiy & H. Lange-Bertalot in Metzeltin et al.	Iconogr. Diatomol.	23: 222	2012
Paraplaconeis pomazkinae	D. Metzeltin, M.S. Kulikovskiy & H. Lange-Bertalot in Metzeltin et al.	Iconogr. Diatomol.	23: 220, pl. 134: figs. 5	2012
Paraplaconeis prespanensis	(Z. Levkov, S. Krstic & T. Nakov) M.S. Kulikovskiy & H. Lange-Bertalot in Metzeltin et al.	Iconogr. Diatomol.	23: 223	2012
Paraplaconeis propria	G.V. Pomazkina in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 191, pl. 130 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Paraplaconeis pseudoplacentula	(N. Foged & M. Møller) V.S. Vishnyakov in Vishnyakov et al.	Bot. Zhurn.	101: 1305	2016
Paraplaconeis recta	G.V. Pomazkina & E.V. Rodionova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 191, pl. 131 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Paraplaconeis signum	G.V. Pomazkina & E.V. Rodionova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 192, pl. 132 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Paraplaconeis steninae	D. Metzeltin, M.S. Kulikovskiy & H. Lange-Bertalot in Metzeltin et al.	Iconogr. Diatomol.	23: 221, pl. 135: figs. 5-7	2012
Paraplaconeis subplacentula	(Hustedt) M.S. Kulikovskiy & H. Lange-Bertalot in Metzeltin et al.	Iconogr. Diatomol.	23: 223	2012
Paraplaconeis undulata	G.V. Pomazkina & T.A. Sherbakova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 192, pl. 133 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Paraplaconeis vernalis	G.V. Pomazkina & T.A. Sherbakova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 192, pl. 134 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
PLACONEIS	Mereschkowsky	Bot. Zap. [Scr. Bot. Horti Univ. Imp. Petrop.]	21: 45, 142	1903
PLACONEIS	Mereschkowsky	Beih. Bot. Centralbl.	15: 3	1903
Placoneis abiskoensis	(Hustedt) H. Lange-Bertalot & D. Metzeltin apud D. Metzeltin & A. Witkowski in H. Lange-Bertalot (ed.)	Iconographia diatomologica	4: expl. pl. 6: figs. 1-6	1996
Placoneis abundans	D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 166, pl. 73: figs. 1-14; pl. 77: figs. 1-3A	2005
Placoneis abundans var. australis	G.V. Pomazkina & E.V. Rodionova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 192, pl. 137 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis abundans var. baicalensis	G.V. Pomazkina & E.V. Rodionova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 192, pl. 138 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis abyssalis	G.V. Pomazkina & T.A. Sherbakova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 192, pl. 139 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis acuta	G.V. Pomazkina & E.V. Rodionova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 193, pl. 140 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis amoena	D. Metzeltin, M.S. Kulikovskiy & H. Lange-Bertalot in Metzeltin et al.	Iconogr. Diatomol.	23: 224, pl. 124: fig. 1	2012
Placoneis amphibola	(Cleve) E.J. Cox	Bot. J. Linn. Soc. [London]	141: 72	2003
Placoneis amphiboliformis	(D. Metzeltin, H. Lange-Bertalot & N. Soninkhishig) V.S. Vishnyakov in Vishnyakov et al.	Bot. Zhurn.	101: 1302	2016
Placoneis anglica	(Ralfs) E.J. Cox	Bot. J. Linn. Soc. [London]	141: 64	2003
Placoneis anglophila	(H. Lange-Bertalot) H. Lange-Bertalot in D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 168	2005
Placoneis anglophila var. signata	(Hustedt) H. Lange-Bertalot in D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 169	2005
Placoneis antediluviana_('antediluvianum')	(Hustedt) H. Lange-Bertalot in D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 169	2005
Placoneis apicalicostata	D. Metzeltin & H. Lange-Bertalot	Iconogr. Diatomol.	11: 53, pl. 30	2003
Placoneis argentata	G.V. Pomazkina & T.A. Sherbakova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 193, pl. 141 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis asymmetrica_('asymmetricus')	A. Glushchenko, E. Kezlya, M. Kulikovskiy & J.P. Kociolek in Kezlya et al.	Cryptogamie, Algologie	43: 180, figs. 2-4	2022
Placoneis attenuata	G.V. Pomazkina & E.V. Rodionova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 193, pl. 142 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis australis	B. Van de Vijver & R. Zidarova in R. Zidarova, B. Van de Vijver, G. Mataloni, K. Kopalová, & L. Nedbalová	Cryptogamie: Algol.	30: 301, figs. 44-58, 62-64	2009
Placoneis balcanica	(Hustedt) H. Lange-Bertalot, D. Metzeltin & Z. Levkov in D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 170	2005
Placoneis betulina	G.V. Pomazkina & E.V. Rodionova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 193, pl. 143 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis bicapitata	Heinzerling	image
Placoneis bicuneus	D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 170, pl. 71: figs. 1-7; pl. 76: fig. 1	2005
Placoneis bona	G.V. Pomazkina & T.A. Sherbakova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 193, pl. 144 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis boris-skvortzowii	D. Metzeltin, M.S. Kulikovskiy & H. Lange-Bertalot in Metzeltin et al.	Iconogr. Diatomol.	23: 225, pl. 132: figs. 17, 18	2012
Placoneis bukhchuluuniae_('bukhchuluunae')	D. Metzeltin, H. Lange-Bertalot & N. Soninkhishig	Iconogr. Diatomol.	20: 81, pl. 55: figs. 7-13	2009
Placoneis cattiensis	A. Glushchenko, E. Kezlya, A. Kulikovskiy & J.P. Kociolek in Kezlya et al.	Phytotaxa	460: 241, figs. 3-28	2020
Placoneis centropunctata	(Hustedt) D. Metzeltin & H. Lange-Bertalot in H. Lange-Bertalot (ed.)	Iconographia Diatomologica	5: 195	1998
Placoneis chilensis	H. Lange-Bertalot & U. Rumrich in U. Rumrich, H. Lange-Bertalot, & M. Rumrich	Iconogr. Diatomol.	9: 206, pl. 59: figs. 8, 9	2000
Placoneis clementioides	(Hustedt) E.J. Cox	image
Placoneis clementis	(Grunow) E.J. Cox	image
Placoneis clementis var. nipponica	(Skvortzov) T. Ohtsuka in T. Ohtsuka & A. Tuji	Phycol. Res.	50: 249	2002
Placoneis clementispronina	H. Lange-Bertalot & A.Z. Wojtal	Beih. Nova Hedwigia	143: 405, 5-13, 77-79	2014
Placoneis cocquytiae	C.A.K. Fofana, E.H. Sow, J. Taylor, L. Ector & B. Van de Vijver	Phytotaxa	161: 140, figs. 1-10	2014
Placoneis coloradensis	J.P. Kociolek & E.W. Thomas	Nova Hedwigia	90: 205, figs. 48-51, 57-62	2010
Placoneis composita	G.V. Pomazkina & T.A. Sherbakova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 193, pl. 145 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis constans	(Hustedt) E.J. Cox	Bot. J. Linn. Soc. [London]	141: 73	2003
Placoneis constans var. symmetrica	(Hustedt) H. Kobayasi in S. Mayama, M. Idei, K. Osada, & T. Nagumo	Diatom	18: 89	2002
Placoneis conveniens	(Hustedt) D. Metzeltin & H. Lange-Bertalot in H. Lange-Bertalot (ed.)	Iconographia Diatomologica	5: 195	1998
Placoneis coxiae_('coxia')	J.P. Kociolek & E.W. Thomas	Nova Hedwigia	90: 200, figs. 23-29, 36-38	2010
Placoneis cruciata	G.V. Pomazkina & E.V. Rodionova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 193, pl. 146 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis cuneata	(Max Møller ex Foged) M. Potapova	Beih. Nova Hedwigia	143: 99	2014
Placoneis dacostae	D. Metzeltin & H. Lange-Bertalot in H. Lange-Bertalot (ed.)	Iconographia Diatomologica	5: 196, pl. 77: fig. 1; pl. 90: figs. 4-8	1998
Placoneis dahurica	(Skvortzov) G.V. Pomazkina & E.V. Rodionova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 193	2019
Placoneis demeraroides	(Hustedt) D. Metzeltin & H. Lange-Bertalot in H. Lange-Bertalot (ed.)	Iconographia Diatomologica	5: 196	1998
Placoneis densa	(Hustedt) H. Lange-Bertalot in D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 173	2005
Placoneis diaphana	G.V. Pomazkina & E.V. Rodionova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 194, pl. 148 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis dicephala	(Ehrenberg) Mereschkowsky	image
Placoneis dicephala f. parva	Mereschkowsky	image
Placoneis dicephala var. elginensis	(Gregory) Mereschkowsky	image
Placoneis dicephala var. subcapitata	(Grunow) Mereschkowsky	image
Placoneis disparilis	(Hustedt) D. Metzeltin & H. Lange-Bertalot in H. Lange-Bertalot (ed.)	Iconographia Diatomologica	5: 197	1998
Placoneis distincta	G.V. Pomazkina & T.A. Sherbakova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 194, pl. 149 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis edlundii	V.S. Vishnyakov in Vishnyakov et al.	Bot. Zhurn.	101: 1302, pl. I: figs. 13-25, pl. II: fig. 7	2016
Placoneis elegans	D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 174, pl. 75: figs. 1-9; pl. 75: fig. 10	2005
Placoneis elegantula	D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 175, pl. 74: figs. 1-10	2005
Placoneis elenae	G.V. Pomazkina & T.A. Sherbakova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 194, pl. 150 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis elenae var. undata	G.V. Pomazkina & T.A. Sherbakova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 194, pl. 151 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis elginensis	(Gregory) E.J. Cox	image
Placoneis elginensis f. exigua	(Gregory) L.N. Bukhtiyarova	Algologia	5: 419	1995
Placoneis elginensis var. exigua	(Gregory) P.M. Tsarenko in P.M. Tsarenko et al. (eds.)	Algae of Ukraine	2: 131	2009
Placoneis elginensis var. neglecta	H. Kobayasi in S. Mayama, M. Idei, K. Osada, & T. Nagumo	Diatom	18: 90	2002
Placoneis elginensis var. undulata	(Østrup) H. Lange-Bertalot apud H. Lange-Bertalot et al. in H. Lange-Bertalot (ed.)	Icon. Diat.	3: 133	1996
Placoneis elliptica	(Hustedt) T. Ohtsuka	Diatom	18: 44	2002
Placoneis ellipticorostrata	D. Metzeltin, H. Lange-Bertalot & N. Soninkhishig	Iconogr. Diatomol.	20: 82, pl. 53: figs. 1-5	2009
Placoneis eugeniae	T.A. Sherbakova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 194, pl. 152 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis exigua	(Gregory) Mereschkowsky	image
Placoneis exiguiformis	(Hustedt) H. Lange-Bertalot in D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 178	2005
Placoneis exiguoides	(Hustedt) H. Lange-Bertalot in D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 179	2005
Placoneis explanata	(Hustedt) S. Mayama in S. Mayama & A. Kawashima	Diatom	14: 69	1998
Placoneis extraordinaris	G.V. Pomazkina & E.V. Rodionova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 194, pl. 153 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis flabellata	(F. Meister) Kimura, H. Fukushima & Ts. Ko-Bayshi	Bunrui	15: 134	2015
Placoneis fourtanierae_('fourtanierae')	J.P. Kociolek & E.W. Thomas	Nova Hedwigia	90: 204, figs. 42-47, 52-56	2010
Placoneis gastriformis	(Hustedt) H. Lange-Bertalot in D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 178	2005
Placoneis gastrum	(Ehrenberg) Mereschkowsky	Beih. Bot. Centralbl.	15: 13	1903
Placoneis gastrum f. nipponica	(Skvortzov) T. Ohtsuka & Y. Fujita	Nova Hedwigia	73: 107	2001
Placoneis gastrum var. boryana	(Pantocsek) Mereschkowsky	image
Placoneis gastrum var. exigua	(Gregory) Mereschkowsky	image
Placoneis gastrum var. jenisseyensis	(Grunow) Mereschkowsky	image
Placoneis gastrum var. latiuscula	(Grunow) Mereschkowsky	Beih. Bot. Centralbl.	15: 14	1903
Placoneis geitleri	(Hustedt) V.S. Vishnyakov in Vishnyakov et al.	Bot. Zhurn.	101: 1304	2016
Placoneis gelegma	M.S. Kulikovskiy, H. Lange-Bertalot & D. Metzeltin in Metzeltin et al.	Iconogr. Diatomol.	23: 226, pl. 132: figs. 19-21	2012
Placoneis gelegma var. baicalensis	G.V. Pomazkina & E.V. Rodionova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 194, pl. 155 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis gracilis	D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 180, pl. 73: figs. 15-17; pl. 76: fig. 3	2005
Placoneis gracilis f. minor	(É. Manguin) D. Metzeltin & H. Lange-Bertalot	Iconogr. Diatomol.	18: 233	2007
Placoneis granum	G.V. Pomazkina & T.A. Sherbakova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 194, pl. 156 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis grata	G.V. Pomazkina in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 195, pl. 157 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis habita	(Hustedt) H. Lange-Bertalot in D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 181	2005
Placoneis hambergii	(Hustedt) K. Bruder in K. Bruder & L.K. Medlin	Nova Hedwigia	85: 349	2007
Placoneis heufleriana	(Grunow) Mereschkowsky	Beih. Bot. Centralbl.	15: 24	1903
Placoneis humilis	D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 182, pl. 74: figs. 11-19; pl. 76: fig. 4	2005
Placoneis ignita	G.V. Pomazkina & T.A. Sherbakova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 195, pl. 158 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis ignorata	(H. Schimanski) H. Lange-Bertalot in U. Rumrich, H. Lange-Bertalot, & M. Rumrich	Iconogr. Diatomol.	9: 207	2000
Placoneis incerta	V.S. Vishnyakov in Vishnyakov et al.	Bot. Zhurn.	101: 1304	2016
Placoneis inexplorata	(Krasske) H. Lange-Bertalot in D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 183	2005
Placoneis insignita	(Hustedt) E.J. Cox	Bot. J. Linn. Soc. [London]	141: 74	2003
Placoneis insularis	T.A. Sherbakova & G.V. Pomazkina in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 195, pl. 159 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis integra	(W. Sm.) Mereschkowsky	image
Placoneis integra	(W. Smith) Mereschkowsky	Beih. Bot. Centralbl.	15: 17	1903
Placoneis interglacialis	(Hustedt) E.J. Cox	Bot. J. Linn. Soc. [London]	141: 74	2003
Placoneis itamoemae	A. Straube, P.I. Tremarin & T.A.V. Ludwig in Straube et al.	Phytotaxa	76: 56, figs. 1-24	2013
Placoneis ivanii	G.V. Pomazkina & E.V. Rodionova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 195, pl. 160 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis izhboldinae	V.S. Vishnyakov in Vishnyakov et al.	Bot. Zhurn.	101: 1301, pl. I: figs. 1-8, pl. II: figs. 1-6	2016
Placoneis jatobensis	(Krasske) D. Metzeltin & H. Lange-Bertalot in H. Lange-Bertalot (ed.)	Iconographia Diatomologica	5: 197	1998
Placoneis jatobensis var. capitata	(Krasske) D. Metzeltin & H. Lange-Bertalot in H. Lange-Bertalot (ed.)	Iconographia Diatomologica	5: 197	1998
Placoneis juriljii	A. Miho & H. Lange-Bertalot	Proc. Int. Diatom Symp.	18: 306, figs. 27-35	2006
Placoneis lata	(M. Peragallo) R. Lowe in J.R. Johansen et al.	Arch. Hydrobiol. Suppl.	150 (Algol. Stud. 111): 24	2004
Placoneis laticuneata	M.S. Kulikovskiy, H. Lange-Bertalot & D. Metzeltin in Metzeltin et al.	Iconogr. Diatomol.	23: 227, pl. 125: figs. 1-3	2012
Placoneis likhoshwayae	D. Metzeltin, M.S. Kulikovskiy & H. Lange-Bertalot in Metzeltin et al.	Iconogr. Diatomol.	23: 227, pl. 132: figs. 1	2012
Placoneis linearis	G.V. Pomazkina & T.A. Sherbakova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 195, pl. 161 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis lucinensis	H. Lange-Bertalot in Hofmann, Werum, & Lange-Bertalot	Diatomeen im Süsswasser-Benthos von Mitteleuropa:	501, pl. 47: 15-19	2011
Placoneis ludmilae	G.V. Pomazkina & T.A. Sherbakova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 195, pl. 162 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis lundstroemii	(Cleve) Mereschkowsky	image
Placoneis lundstroemii var. frieseana	(Grunow) Mereschkowsky	image
Placoneis macedonica	Z. Levkov & D. Metzeltin in Levkov, Krstic, Metzeltin & Nakov	Icon. Diatomol.	16: 110, pl. 98, pl. 99: figs. 20-23	2007
Placoneis maculata	(Hustedt) Z. Levkov in Levkov, Krstic, Metzeltin & Nakov	Icon. Diatomol.	16: 111	2007
Placoneis madagascariensis	H. Lange-Bertalot & D. Metzeltin in D. Metzeltin & H. Lange-Bertalot	Iconogr. Diatomol.	11: 54, pl. 27: figs. 37-40; pl. 28: fig. 4	2003
Placoneis magna	G.V. Pomazkina & T.A. Sherbakova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 195, pl. 163 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis maior	M.S. Kulikovskiy, H. Lange-Bertalot & D. Metzeltin in Metzeltin et al.	Iconogr. Diatomol.	23: 228, pl. 124: figs. 4-7	2012
Placoneis margaritae_('margarita')	M.S. Kulikovskiy & H. Lange-Bertalot in Metzeltin et al.	Iconogr. Diatomol.	23: 229, pl. 128: figs. 1-14; pl. 129: figs. 1, 2; pl. 130: figs. 1, 2	2012
Placoneis merinensis	D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 183, pl. 72: figs. 7-10; pl. 72: fig. 11	2005
Placoneis minor	(Grunow) H. Lange-Bertalot in D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 183	2005
Placoneis mira	G.V. Pomazkina & E.V. Rodionova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 196, pl. 165 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis miseranda	M.S. Kulikovskiy, H. Lange-Bertalot & D. Metzeltin in Metzeltin et al.	Iconogr. Diatomol.	23: 230, pl. 125: figs. 10, 11; pl. 132: figs. 13-15	2012
Placoneis modaomensis	Yan-Ling Li in Li et al.	Acta Botanica Croatica	82: 88, figs. 1-3	2023
Placoneis molesta	D. Metzeltin & H. Lange-Bertalot in H. Lange-Bertalot (ed.)	Iconographia Diatomologica	5: 197, pl. 89: figs. 6-9	1998
Placoneis molestissima	D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 186, pl. 70: figs. 14-21; pl. 77: figs. 4, 4A	2005
Placoneis mollis	G.V. Pomazkina & E.V. Rodionova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 196, pl. 167 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis mologaensis	V.S. Vishnyakov	Phytotaxa	464: 219, figs. 1-26	2020
Placoneis mutica	(Kützing) Mereschkowsky	image
Placoneis mutica var. goeppertiana	(Bleisch) Mereschkowsky	image
Placoneis mutica var. legumen	(Cleve) Mereschkowsky	image
Placoneis mutica var. peguana	(Grunow) Mereschkowsky	image
Placoneis mutica var. producta	(Grunow) Mereschkowsky	image
Placoneis mutica var. undulata	(Hilse) Mereschkowsky	image
Placoneis mutica var. ventricosa	(Kützing) Mereschkowsky	image
Placoneis nanoclementis	H. Lange-Bertalot & A.Z. Wojtal	Beih. Nova Hedwigia	143: 407, figs. 14-28, 71-73	2014
Placoneis navicula	G.V. Pomazkina & T.A. Sherbakova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 196, pl. 168 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis navicularis	(Ehrenberg) E.J. Cox	Bot. J. Linn. Soc. [London]	141: 71	2003
Placoneis neglecta	A. Tuji	Bull. Natl. Sci. Mus [Tokyo], Ser. B (Bot.),	29: 71	2003
Placoneis neglecta	R. Lowe in J.R. Johansen et al.	Arch. Hydrobiol. Suppl.	150 (Algol. Stud. 111): 24	2004
Placoneis neoexigua	Lange-Bertalot, & Miho in A. Miho & H. Lange-Bertalot	Proc. Int. Diatom Symp.	18: 302, figs. 1-11, 20-26	2006
Placoneis neotropica	D. Metzeltin & H. Lange-Bertalot in H. Lange-Bertalot (ed.)	Iconographia Diatomologica	5: 198, pl. 89: figs. 1-5	1998
Placoneis obtuseprotracta	(Hustedt) Y. Li & D. Metzeltin in Gong et al.	Phytotaxa	150: 38	2013
Placoneis ohridana	Z. Levkov & D. Metzeltin in Levkov, Krstic, Metzeltin & Nakov	Icon. Diatomol.	16: 111, pl. 97	2007
Placoneis ovillus	D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 187, pl. 74: figs. 20-26	2005
Placoneis paraelginensis	H. Lange-Bertalot in U. Rumrich, H. Lange-Bertalot, & M. Rumrich	Iconogr. Diatomol.	9: 208, pl. 60: figs. 17-20	2000
Placoneis paragelegma	G.V. Pomazkina & E.V. Rodionova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 196, pl. 169 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis paraundulata	T. Ohtsuka	Diatom	18: 47	2002
Placoneis parazula	M.S. Kulikovskiy & H. Lange-Bertalot in Metzeltin et al.	Iconogr. Diatomol.	23: 231, pl. 131: figs. 14-17	2012
Placoneis parunculus	(Hustedt) H. Lange-Bertalot in D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 189	2005
Placoneis parvapolonica	H. Lange-Bertalot & A.Z. Wojtal	Beih. Nova Hedwigia	143: 408, figs. 29-44, 74-76	2014
Placoneis parvula	G.V. Pomazkina & E.V. Rodionova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 196, pl. 171 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis patagonica	N.I. Maidana in Maidana et al.	Beih. Nova Hedwigia	146: 98, figs. 21-40	2018
Placoneis paucimarensis	E.V. Rodionova & G.V. Pomazkina in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 196, pl. 172 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis pellaifa	H. Lange-Bertalot & U. Rumrich in U. Rumrich, H. Lange-Bertalot, & M. Rumrich	Iconogr. Diatomol.	9: 210, pl. 60: figs. 9, 10	2000
Placoneis perelginensis	D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 189, pl. 70: figs. 6-13	2005
Placoneis placentula	(Ehrenberg) Mereschkowsky	image
Placoneis placentula f. lanceolata	(Grunow) L.N. Bukhtiyarova	Algologia	5: 419	1995
Placoneis placentula f. latiuscula	(Grunow) L.N. Bukhtiyarova	Algologia	5: 420	1995
Placoneis placentula f. rostrata	(Mayer) L.N. Bukhtiyarova	Algologia	5: 420	1995
Placoneis placentula var. jenisseyensis	(Grunow) L.N. Bukhtiyarova	Algologia	5: 419	1995
Placoneis placentula var. lanceolata	(Grunow) M. Aboal in A. Witkowski (ed.),	Diat. Monogr.	4: 424	2003
Placoneis placentula var. lanceolata	(Grunow) P.M. Tsarenko in P.M. Tsarenko et al. (eds.),	Algae of Ukraine	2: 132	2009
Placoneis placentula var. latiuscula	(Grunow) P.M. Tsarenko in P.M. Tsarenko et al. (eds.)	Algae of Ukraine	2: 132	2009
Placoneis placentula var. rostrata	(Mayer) N.A. Andresen, E.F. Stoermer, & R.G. Kreis, Jr.	Diatom Research	15: 415	2000
Placoneis porifera	(Hustedt) T. Ohtsuka & Y. Fujita	Nova Hedwigia	73: 107	2001
Placoneis porifera var. opportuna	(Hustedt) E. Novelo, R. Tavera, & C. Ibarra	Bibliotheca Diatomol.	54: 53	2007
Placoneis prespanensis	Z. Levkov, S. Krstic & T. Nakov in Levkov, Krstic, Metzeltin & Nakov	Icon. Diatomol.	16: 113, pl. 99: figs. 1-17, pl. 100	2007
Placoneis protracta	(Grunow) Mereschkowsky	image
Placoneis protracta var. maxima	(Cleve) Mereschkowsky	image
Placoneis pseudabundans	Z. Levkov in Levkov & Williams	Phytotaxa	30: 14, figs. 92-95	2011
Placoneis pseudanglica	E.J. Cox	image
Placoneis pseudanglica	E.J. Cox	Diatom Res.	2: 155	1988
Placoneis pseudoclementis	(Hustedt) H. Lange-Bertalot in D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 192	2005
Placoneis pseudodemerarae	(Hustedt) D. Metzeltin & H. Lange-Bertalot in H. Lange-Bertalot (ed.)	Iconographia Diatomologica	5: 199	1998
Placoneis pseudolacustris	(A.P. Skabichevskij) M.S. Kulikovskiy, H. Lange-Bertalot & G.K. Khursevich	Nova Hedwigia	100: 219	2014
Placoneis pseudolacustris f. apiculata	(A.P. Skabichevskij) M.S. Kulikovskiy, H. Lange-Bertalot & G.K. Khursevich	Nova Hedwigia	100: 221	2014
Placoneis pseudoporifera	(Hustedt) H. Lange-Bertalot in D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 192	2005
Placoneis radialis	G.V. Pomazkina & E.V. Rodionova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 196, pl. 173 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis radialis var. producta	G.V. Pomazkina & E.V. Rodionova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 196, pl. 174 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis regionalis	G.V. Pomazkina & T.A. Sherbakova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 197, pl. 175 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis reimeri	J.P. Kociolek & E.W. Thomas	Nova Hedwigia	90: 201, figs. 30-35, 39-41	2010
Placoneis reversa	(Hustedt) H. Lange-Bertalot in D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 193	2005
Placoneis rhombea	G.V. Pomazkina & E.V. Rodionova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 197, pl. 176 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis rhombelliptica	D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 193, pl. 71: figs. 16-23; pl. 76: fig. 2	2005
Placoneis rhombica	(Brockmann) H. Lange-Bertalot in D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 195	2005
Placoneis rostrata	(Ant. Mayer) E.J. Cox	Bot. J. Linn. Soc. [London]	141: 67	2003
Placoneis ruppeliana	M.S. Kulikovskiy, H. Lange-Bertalot & D. Metzeltin in Metzeltin et al.	Iconogr. Diatomol.	23: 232, pl. 125: figs. 4-9; pl. 126: figs. 1, 2; pl. 127: figs. 1-3	2012
Placoneis santaremensis	D. Metzeltin & H. Lange-Bertalot in H. Lange-Bertalot (ed.)	Iconographia Diatomologica	5: 199, pl. 75: figs. 18-24	1998
Placoneis scharfii	H. Lange-Bertalot & U. Rumrich in U. Rumrich, H. Lange-Bertalot, & M. Rumrich	Iconogr. Diatomol.	9: 211, pl. 59: figs. 5-7	2000
Placoneis septentrionalis	G.V. Pomazkina & E.V. Rodionova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 196, pl. 178 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis serena	(Frenguelli) D. Metzeltin in D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 195	2005
Placoneis signata	S. Mayama in S. Mayama & A. Kawashima	Diatom	14: 70	1998
Placoneis signatoides	D. Metzeltin & Z. Levkov in Levkov, Krstic, Metzeltin & Nakov	Icon. Diatomol.	16: 114, pl. 90: figs. 2-9	2007
Placoneis significans	H. Lange-Bertalot in D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 196	2005
Placoneis simplex	G.V. Pomazkina & E.V. Rodionova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 197, pl. 179 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis sinensis	Y. Li & D. Metzeltin in Gong et al.	Phytotaxa	150: 34, figs. 40-43	2013
Placoneis solaris	G.V. Pomazkina, E.V. Rodionova & T.A. Sherbakova	Limnol. Freshw. Biol.	2019: 197, pl. 180 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis sovereigniae_('sovereignae')	(Hustedt) L.C. Torgan & L. Donadel	Iheringia, sér. Bot.	65: 107	2010
Placoneis spinosa	M.S. Kulikovskiy, H. Lange-Bertalot & D. Metzeltin in Metzeltin et al.	Iconogr. Diatomol.	23: 233, pl. 122: figs. 1-4; pl. 123: figs. 1, 2	2012
Placoneis subclementis	(Hustedt) H. Lange-Bertalot in D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 196	2005
Placoneis subelegans	Z. Levkov in Levkov & Williams	Phytotaxa	30: 16, figs. 97-113	2011
Placoneis subgastriformis	(Hustedt) E.J. Cox	Bot. J. Linn. Soc. [London]	141: 74	2003
Placoneis subinflata	(Grunow) Mereschkowsky	image
Placoneis subinflata var. elliptica	(Cleve) Mereschkowsky	image
Placoneis subplacentula	(Hustedt) E.J. Cox	Bot. J. Linn. Soc. [London]	141: 73	2003
Placoneis subsalsa	Mereschkowsky	image
Placoneis subsalsa var. minuta	(Grunow) Mereschkowsky	image
Placoneis subsalsa var. obtusata	(Grunow) Mereschkowsky	image
Placoneis subtilis	M.S. Kulikovskiy & H. Lange-Bertalot in Metzeltin et al.	Iconogr. Diatomol.	23: 234, pl. 131: figs. 23-28; pl. 134: figs. 6	2012
Placoneis surinamensis	(Cleve) D. Metzeltin & H. Lange-Bertalot in H. Lange-Bertalot (ed.)	Iconographia Diatomologica	5: 200	1998
Placoneis symmetrica	(Hustedt) H. Lange-Bertalot in D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 197	2005
Placoneis tersa	(Hustedt) D. Metzeltin & H. Lange-Bertalot in H. Lange-Bertalot (ed.)	Iconographia Diatomologica	5: 200	1998
Placoneis tsendeekhuui	D. Metzeltin, H. Lange-Bertalot & N. Soninkhishig	Iconogr. Diatomol.	20: 83, pl. 55: figs. 1-6	2009
Placoneis tumidula	Z. Levkov in Levkov, Krstic, Metzeltin & Nakov	Icon. Diatomol.	16: 115, pl. 91: figs. 11-15, pl. 92: figs. 4-10, pl. 93: fig. 1	2007
Placoneis undulata	(Østrup) T. Ohtsuka & Y. Fujita	Nova Hedwigia	73: 107	2001
Placoneis uruguayensis	D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 197, pl. 78	2005
Placoneis vadosa	G.V. Pomazkina & E.V. Rodionova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 197, pl. 181 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis vicina	(Hustedt) D. Metzeltin & H. Lange-Bertalot in H. Lange-Bertalot (ed.)	Iconographia Diatomologica	5: 201	1998
Placoneis vladimirii var. diminuta	G.V. Pomazkina in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 198, pl. 183 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis vladimirii_('vladimiri')	G.V. Pomazkina in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 197, pl. 182 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis waernensis	(Foged) H. Lange-Bertalot & D. Metzeltin in D. Metzeltin, H. Lange-Bertalot & N. Soninkhishig	Iconogr. Diatomol.	20: 84	2009
Placoneis witkowskii	D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez	Iconogr. Diatomol.	15: 200, pl. 71: figs. 8-15	2005
Placoneis witkowskii var. baicalensis	G.V. Pomazkina & T.A. Sherbakova in Pomazkina, Rodionova, & Sherbakova	Limnol. Freshw. Biol.	2019: 198, pl. 184 in Pomazkina et al., Benthic diatom algae of the family Naviculaceae of Lake Baikal (2018)	2019
Placoneis yucatanensis	D. Metzeltin & H. Lange-Bertalot	Iconogr. Diatomol.	18: 233, pl. 144: figs. 7-11	2007
Placoneis zimmermannii	D. Metzeltin & H. Lange-Bertalot in H. Lange-Bertalot (ed.)	Iconographia Diatomologica	5: 201, pl. 89: figs. 10-13	1998
Placoneis zula	M.S. Kulikovskiy, H. Lange-Bertalot & D. Metzeltin in Metzeltin et al.	Iconogr. Diatomol.	23: 235, pl. 131: figs. 1-13	2012