Natura - nature
actualia - actual entities
Mundus Plinius - physical world
naturalia - natural bodies
[crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Clade neomura Cavalier-Smith, 1987
Domain Eukaryota Chatton, 1925 - eukaryotes
Clade discaria Cavalier-Smith, 2021
Clade natates Cavalier-Smith, 2021
Clade photaria Cavalier-Smith, 2021
Clade eucorta Cavalier-Smith, 2021
Superkingdom Corticata Lankester, 1878 - corticates
Kingdom Chromista Caval.-Sm. (1981) - chromists
Subkingdom Harosa Cavalier-Smith, 2010
[crown] Clade Sar Adl et al. 2012 [Simpson & Dunthorn 2020]
Infrakingdom Halvaria Cavalier-Smith, 2010
Superphylum Heterokonta Caval.-Sm. (1986)
Phylum Ochrophyta Caval.-Sm. (1995)
Subphylum Khakista Caval.-Sm. (2000)
Diatomea Kütz. (1844)
Class Bacillariophyceae Haeckel (1878) - pennates
Subclass Bacillariophycidaeᵀ D.G.Mann (1990) - raphid diatoms
Order Achnanthales P.C.Silva (1962)
Family Achnanthaceaeᵀ Kütz. (1844)
Genus Achnanthesᵀ Bory (1822)
Achnanthes angustata Grev. (1859)
Achnanthes aperta J.R. Carter, in J.R. Carter & Bailey-Watts (1981)
Achnanthes arcus Hustedt
Achnanthes austriaca Hustedt (1922)
Achnanthes bicapitata Hustedt (1952)
Achnanthes bijuga Turpin
Achnanthes bistriata Skvortzov
Achnanthes borealis A.Cleve (1895)
Achnanthes bottnica (P.T. Cleve, 1891) P.T. Cleve (1895)
Achnanthes boyei Østrup (1918)
Achnanthes brevicostata (Hustedt) Lange-Bertalot & Krammer
Achnanthes brevipes C.Agardh (1824)
Achnanthes brockmannii
Achnanthes catenata Bily & Marvan (1959)
Achnanthes coarctata (Bréb.) Grunow, in Cleve & Grunow (1880)
Achnanthes conspicua A. Mayer (1919)
Achnanthes crassa Hustedt
Achnanthes curtissima J.R. Carter (1963)
Achnanthes danica (Flögel) Grunow, in Cleve & Grunow (1880)
Achnanthes depressa (Cleve) Hustedt (1933)
Achnanthes divergens A.Cleve-Euler (1953)
Achnanthes elegans Kobayasi
Achnanthes expressa J.R. Carter (1981)
Achnanthes fimbriata (Grunow) R. Ross (1963)
Achnanthes flexella (Kützing) Brun (1880)
Achnanthes fluviatilis A.Cleve-Euler (1953)
Achnanthes fontana Round (1959)
Achnanthes fugei J.R. Carter (1963)
Achnanthes gibberula Grunow, in Cleve & Grunow (1880)
Achnanthes gracillima (Meister) Mills (1933)
Achnanthes hallandica A.Cleve-Euler (1953)
Achnanthes hasta Skvortzov
Achnanthes hauskiana
Achnanthes hintzii Lange-Bertalot & Krammer (1989)
Achnanthes holsatica Hustedt (1936)
Achnanthes hyperborea (Grunow) Grunow (1884)
Achnanthes impexiformis Lange-Bertalot
Achnanthes inflata (Kützing) Grunow (1880)
Achnanthes koshovii Jasnitsky
Achnanthes kriegeri Krasske (1943)
Achnanthes lacunarum Hustedt
Achnanthes lacus-baicali Skvortzov
Achnanthes laevis Østrup (1910)
Achnanthes lanceolata (Bréb.) Grunow
Achnanthes lapidosa Krasske (1929)
Achnanthes latissima A.Cleve-Euler
Achnanthes lemmermannii Hustedt (1933)
Achnanthes leonardii Witkowski & Lange-Bertalot
Achnanthes lineata
Achnanthes lintonensis J.R. Carter (1961)
Achnanthes longipes C.Agardh (1824)
Achnanthes lorenziana Grunow ex A.Schmidt (1895)
Achnanthes lutheri Hustedt (1933)
Achnanthes mercurii Witkowski, Metzeltin & Lange-Bertalot
Achnanthes meyerii Skvortzov
Achnanthes montana Krasske (1929)
Achnanthes nodosa A.Cleve-Euler (1900)
Achnanthes obliqua (Gregory) Hustedt (1924)
Achnanthes parvula Kützing (1844)
Achnanthes perfida J.R. Carter (1963)
Achnanthes petersenii Hustedt (1937)
Achnanthes pinnata Hustedt (1922)
Achnanthes plana J.R. Carter (1963)
Achnanthes profunda Skvortzov
Achnanthes pseudobliqua Simonsen
Achnanthes pseudopunctulata Simonsen
Achnanthes pseudosuchlandtii Manguin (1961)
Achnanthes punctata Round (1959)
Achnanthes quadratarea (Østrup) M. Möller ex Foged (1974)
Achnanthes ricula Hohn & Hellerman
Achnanthes rostellata A.Cleve-Euler (1934)
Achnanthes rupestoides Hohn (1961)
Achnanthes rupestris Krasske (1932)
Achnanthes saccula J.R. Carter, in J.R. Carter & Bailey-Watts (1981)
Achnanthes saxonica Krasske ex Hustedt (1933)
Achnanthes semiaperta Hustedt (1945)
Achnanthes similis McCall (1933)
Achnanthes skvortzowii Jasnitsky
Achnanthes sonyda B. Hartley (1986)
Achnanthes stauroneiformis Skabichevskij
Achnanthes stewartii Patrick
Achnanthes striata Skvortzov
Achnanthes stroemii Hustedt (1933)
Achnanthes sublaevis Hustedt
Achnanthes submarina Hustedt (1956)
Achnanthes subsalsa J.B. Petersen (1928)
Achnanthes subsalsoides Hustedt (1933)
Achnanthes subsessilis Kützing (1833)
Achnanthes suchlandtii Hustedt (1933)
Achnanthes suspecta A.Cleve-Euler (1934)
Achnanthes tenuis Hustedt (1955)
Achnanthes trinodis (W.Sm.) Grunow, in Van Heurck (1880)
Achnanthes umara J.R. Carter (1970)
Achnanthes vistulana Witkowski