154,548 species and infraspecific names are in the database, 21,106 images, 59,782 bibliographic items, 419,596 distributional records.

Taxonomy Browser

Genus: Penium

Higher Taxonomy

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Rank

Name

Authority  

# Species

 

Empire

Eukaryota

Chatton  

45,219

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Kingdom

Plantae

Haeckel  

18,850

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Subkingdom

Viridiplantae

Cavalier-Smith  

11,492

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Infrakingdom

Streptophyta infrakingdom

C.Jeffrey  

4,853

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Phylum

Charophyta

Migula  

4,853

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Class

Conjugatophyceae (Zygnematophyceae)

Engler  

4,099

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Order

Desmidiales

C.E.Bessey  

2,900

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Family

Peniaceae

Haeckel  

41

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Genus

Penium

Brébisson ex Ralfs  

41

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Subordinate taxa

Rank

Name

Authority  

Fossil

# Species

 

Species

amplificatum

(M.Schmidt) Van Westen & Coesel  

 

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Variety

apiculatum

J.A.Cushman  

 

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Species

asperum

Petkoff  

 

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Variety

attenuatum

Raciborski  

 

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Species

barbaricum

Claassen  

 

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Species

bisporum

W.B.Turner  

 

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Species

blandum

Raciborski  

 

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Forma

botesii

Claassen  

 

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Species

brefeldii

Istvànffi [Istvanfy]  

 

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Variety

brevius

Claassen  

 

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Species

clevei

P.Lundell  

 

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Variety

closterioides

Brühl & Biswas  

 

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Variety

conspersum

Fritsch  

 

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Variety

conspersum

Nordstedt  

 

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Species

conspersum

Wittrock  

 

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Species

costatum

Hodgetts  

 

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Forma

crassior

G.S.West  

 

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Forma

crassior

Playfair  

 

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Variety

crassum

West & G.S.West  

 

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Forma

cucurbitinum

Playfair  

 

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Species

cuticulare

West & G.S.West  

 

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Variety

cuticulare

(West & G.S.West) Willi Krieger  

 

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Species

cylindraceum

Kurt Förster  

 

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Variety

cylindraceum

Playfair  

 

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Variety

cylindrus

Schmidle  

 

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Species

cylindrus

Brébisson ex Ralfs  

 

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Variety

delicatulum

R. Gutwinski  

 

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Species

delicatulum

Joshua  

 

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Species

diadematum

Reinsch  

 

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Variety

didymocarpum

Schmidle  

 

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Variety

digitus

Lagerheim  

 

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Variety

digitus

Lemmermann  

 

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Species

diplosporum

Jakobs  

 

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Forma

elongatum

(Klebs) Kossinskaja  

 

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Variety

exiguum

Gutwinski  

 

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Species

exiguum

West  

 

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Variety

expansum

(Playfair) Willi Krieger  

 

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Variety

glaberrimum

Grönblad  

 

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Species

gonatozygiforme

Claassen  

 

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Variety

gracillimum

Playfair  

 

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Forma

granulatum

(Raciborski) Playfair  

 

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Species

granulatum

(Bennet) West & G.S.West  

 

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Species

heimerlianum

Schmidle  

 

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Variety

incognitum

Claassen  

 

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Forma

incrassatum

Maskell  

 

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Forma

incrassatum

Maskell  

 

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Species

incrassatum

Maskell  

 

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Variety

indivisum

Playfair  

 

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Forma

intermedia

Wille  

 

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Variety

interruptum

West & G.S.West.  

 

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Variety

irregulare

West & G.S.West  

 

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Species

jenneri

Ralfs  

 

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Variety

lagenarioides

R. Gutwinski  

 

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Species

lewisii

W.B.Turner  

 

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Species

libellula

(Focke ex Nordstedt) Nordstedt  

 

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Forma

longum

Huber-Pestalozzi  

 

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Forma

major

West & G.S.West  

 

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Forma

major

Nordstedt  

 

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Forma

majus

Wille  

 

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Forma

majus

Irénée-Marie  

 

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Forma

margaritaceum

Raciborski  

 

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Variety

margaritaceum

Whelden  

 

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Variety

margaritaceum

J.A.Cushman  

 

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Species

margaritaceum

Brébisson  

 

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Species

mesianum

Claassen  

 

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Forma

minus

Wille  

 

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Variety

minus

West & G.S.West  

 

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Forma

minus

Bourrelly  

 

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Forma

minus

C.Bicudo  

 

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Variety

minutissimum

Auclair  

 

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Variety

minutissimum

(Nordstedt) Playfair  

 

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Variety

minutum

Fritsch  

 

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Variety

minutum

Wille  

 

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Forma

minutum

West  

 

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Variety

mooreanum

(W.Archer) Playfair  

 

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Species

multicostatum

Scott & Grönblad  

 

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Forma

navicula

Huber-Pestalozzi  

 

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Variety

navicula

Huber-Pestalozzi  

 

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Species

navicula

Brébisson  

 

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Species

navigium

W.B.Turner  

 

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Forma

oblongum

W.B.Turner  

 

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Variety

obtusum

West & G.S.West  

 

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Forma

phymatosporum

Kurt Förster  

 

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Variety

plymatosporum

Cholnoky  

 

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Species

poeltianum

Kurt Förster  

 

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Forma

polmorphum

Heimerl  

 

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Species

polonicum

Raciborski  

 

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Variety

polonicum

(Raciborski) West  

 

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Forma

polymorphum

W.B.Turner  

 

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Species

polymorphum

(Perty) Perty  

 

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Species

pseudocostatum

Suxena & Venkateswarlu  

 

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Species

pseudorufescens

Claassen  

 

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Variety

pulverulentum

Playfair  

 

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Forma

punctatum

(Raciborski) Playfair  

 

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Species

pyramidatam

(West & G.S.West) Willi Krieger  

 

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Variety

rectissimum

West & G.S.West  

 

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Variety

rectum

(Delponte) West & G.S.West  

 

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Species

rotundum

W.B.Turner  

 

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Species

rupestre

(Kützing) Rabenhorst  

 

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Variety

schweickerdtii

Claassen  

 

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Variety

scoticum

(West & G.S.West) West & G.S.West  

 

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Species

semistriolatum

Bark.  

 

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Species

simplex

W.B.Turner  

 

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Species

spinulosum

(Wolle) Gerrath  

 

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Variety

spiriostriolatum

Rabanus  

 

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Species

spiroplastidium

Prescott  

 

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Forma

spirospermum

Petkoff  

 

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Species

spirostriolatiforme

West & G.S.West  

 

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Species

spirostriolatum

J.Barker  

 

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Species

subcucurbitinum

Claassen  

 

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Species

sublamellosum

W.B.Turner  

 

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Variety

subpolymorphum

Nordstedt  

 

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Species

subrufescens

Borge  

 

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Species

subspirostriolatiforme

Grönblad  

 

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Species

substriatum

M.Hirano  

 

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Species

subtile

West & G.S.West  

 

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Species

terrestre

C.C.Jao  

 

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Species

thwaitesii

Ralfs  

 

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Variety

truncatum

(Roy) West & G.S.West  

 

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Variety

turneri

Playfair  

 

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Variety

waterbergense

Claassen  

 

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