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{{Short description|Genus of flowering plants}}
{{Taxobox begin | color = lightgreen | name = ''Anubias''}}
{{automatic taxobox
<!-- {{Taxobox image | image = | caption = }} -->
|image = Anubias_barteri_var_nana_on_a_bogwood.jpg
{{Taxobox begin placement | color = lightgreen}}
|image_caption = ''Anubias barteri'' var. ''nana'' on a bogwood (top view)
{{Taxobox regnum entry | taxon = ]ae}}
|display_parents = 2
{{Taxobox divisio entry | taxon = ]}}
|taxon = Anubias
{{Taxobox classis entry | taxon = ]}}
|authority = ]
{{Taxobox ordo entry | taxon = ]}}
|subdivision_ranks = Species
{{Taxobox familia entry | taxon = ]}}
|subdivision = *'']''
{{Taxobox genus entry | taxon = '''''Anubias'''''}}<br/>{{Taxobox authority new | authority = ]}}
{{Taxobox end placement}}
{{Taxobox section subdivision | color = lightgreen | plural_taxon = Species}}
See text
{{Taxobox end}}

]

'''''Anubias''''' is a genus of species of aquatic and semi-aquatic ]s in the family ], native to tropical central and western ].

They primarily grow in rivers and streams, but can also be found in marshes. They are characterized by broad, thick, dark leaves. Their ]s must always be above the substrate in order to survive. Reproduction is by stolon division or from side shoots.

Currently used in ]s are 7 major species, with a number of varieties. The ] of the species is not yet final (this also happens for many aquatic plants species), and scientific names have changed quite often.

;Selected species and varieties
*'']''
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*'']'' *'']''
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| synonyms = ''Amauriella'' <small>]</small>
| type_species = ''A. afzelii''
| type_species_authority = Schott
}}

'''''Anubias''''' is a genus of aquatic and semi-aquatic ]s in the family ], native to tropical central and western ]. They primarily grow in rivers and streams, but can also be found in marshes. They are characterized by broad, thick, dark leaves that come in many different forms. The genus was revised in 1979<ref name="Crusio">{{cite journal |last=Crusio |first=W. |author-link=Wim Crusio |year=1979 |title=A revision of Anubias Schott (Araceae). (Primitiae Africanae XII) |journal=Mededelingen Landbouwhogeschool Wageningen |volume=79 |issue=14 |pages=1–48 |url=http://edepot.wur.nl/165228 |access-date=2010-12-26}}</ref> and since then its ] has been stable. Species can be determined by using mostly characteristics of the ]. Because of the often shady places where the plants grow, the genus was named after the ], the god of the afterlife.<ref name="Crusio"/> The genus was first described in 1857 by ], with '']'' as its ].<ref>{{cite journal |last=Schott |first=H. |date=December 1857 |title=Aroideen Skizzen |journal=] |volume=7 |issue=50 |pages=398–399 |doi=10.1007/BF02071618 |language=de, la}}</ref>

== Reproduction and uses ==
''Anubias'', most notably the varying forms of '']'',<ref>{{cite book |author=Christel Kasselmann |title=Aquarium Plants |url=https://archive.org/details/aquariumplants00kass |url-access=limited |publisher=Krieger Publishing Company |location=Malabar, FL |year=2002 |pages= |isbn=1-57524-091-2 }}</ref> are commonly used in ]s, usually attached to rocks or bogwood. In contrast to most plants, ''Anubias'' generally prefer subdued lighting and can also produce flowers underwater. In the aquarium they should be placed in shaded areas, otherwise algae will develop on the leaves.

''Anubias'' are considered by many aquarists some of the easiest plants to maintain, since their light and nutrient requirements are very low and also because ] fish will not eat it (with a few exceptions). This is why ''Anubias'' are some of the few plants which can be used in aquariums with African ]s and ]es.

Reproduction in artificial environments can be accomplished by stolon division or from side shoots. The ] must always be above the substrate in order to survive, otherwise it will rot and the plant dies. Rather than planting ''Anubias'' directly into the soil, they should be attached to a piece of rock or driftwood, as they are more likely to grow and thrive when the rhizome and roots are left exposed instead of buried. It is also possible to propagate ''Anubias'' by seed.<ref name="Anubias">{{cite journal |author=Crusio WE |title=Die Gattung ''Anubias'' SCHOTT (Araceae) |journal=] |volume=Sonderheft |issue=1 |pages=1–44 |year=1987 |language=de}}</ref>

The natural growth rate of all species in this genus is rather slow. Usually, they produce a leaf every 3 weeks, or even slower. And while they were once thought to be among the few plants that do not respond to CO<sub>2</sub> addition, {{citation needed span|hobbyists have seen great results and improved growth with CO<sub>2</sub> and high light intensity|date=January 2018}}.

The most commonly available species of this genus is ''Anubias barteri'' Schott, which is polymorphic and subdivided into several varieties. The largest members of the genus are ''Anubias gigantea'' Chevalier ex Hutchinson and ''Anubias heterophylla'' Engler. Their leaf-stems can grow up to 83&nbsp;cm, with leaves 40&nbsp;cm long and 14&nbsp;cm broad with lateral lobes up to 28&nbsp;cm long and 10&nbsp;cm broad. The smallest representative is '']'' (Engler) Crusio, with a height up to 10&nbsp;cm and with leaves up to 6&nbsp;cm long and 3&nbsp;cm broad.

''Anubias'' can be grown emersed (above water). For this reason they may be used in ]s.

== Species and varieties ==
; ]
* Narrow-leafed, medium-sized ''Anubias''
* Characteristics: plant with stolon
* Leaf-stem: up to 20&nbsp;cm
* Leaves: 13–35&nbsp;cm long, 3–13&nbsp;cm broad
* Height in aquarium: 25 – 30&nbsp;cm
Optimal conditions:
* Temperature: 22 - 28&nbsp;°C
* pH: 6.0 - 7.0
* Water hardness: 2 dGH - 6 dGH
* Position in aquarium: middle to back
* Usual growth rate: one leaf every 2 months

;]

Common varieties:
{{Wikispecies|Anubias}}
{{Commonscat|Anubias}}
;]
* Synonym: ''Anubias lanceolata'' f. ''angustifolia'' Engler
* Narrow leaves, similar to ''afzelii'', but much smaller
* Leaf-stem: up to 32&nbsp;cm
* Leaves: up to 18&nbsp;cm long, up to 3.5&nbsp;cm wide
* Height in aquarium: 10 – 15&nbsp;cm
Optimal conditions:
* Temperature: 20 - 27&nbsp;°C
* pH: 5.5 - 8.0
* Water hardness: < 8 dGH
* Position in aquarium: middle
* Usual growth rate: one leaf every 2 months

;]
* Compact, heart-shaped anubias
* Leaf-stem: up to 23&nbsp;cm
* Leaves: 7–23&nbsp;cm long, 4–11&nbsp;cm wide
* Height in aquarium: 25 – 45&nbsp;cm
Optimal conditions:
* Temperature: 20 - 27&nbsp;°C
* pH: 5.5 - 9.0
* Water hardness: < 20 dGH
* Position in aquarium: back
* Usual growth rate: one leaf every 3 months

;]
* Heart-shaped anubias
* Leaf-stem: up to 54&nbsp;cm
* Leaves: 10–23&nbsp;cm long, 5–14&nbsp;cm wide
* Height in aquarium: 7 – 30&nbsp;cm
Optimal conditions:
* Temperature: 20 - 27&nbsp;°C
* pH: 5.5 - 8.0
* Water hardness: < 20 dGH
* Position in aquarium: middle to back
* Usual growth rate: one leaf every 2 months

;]
* Synonyms: ''Anubias lanceolata'' N. E. Brown, ''Anubias minima'' Chevalier.
* Narrow-leafed, large anubias
* Leaf-stem: up to 35&nbsp;cm long
* Leaves: spear-shaped, up to 21&nbsp;cm long, 9&nbsp;cm wide
* Height in aquarium: 30 – 50&nbsp;cm
Optimal conditions:
* Temperature: 22 - 27&nbsp;°C
* pH: 5.5 - 8.0
* Water hardness: < 20 dGH
* Position in aquarium: back
* Usual growth rate: 4 - 8 leaves per year

;]
* Synonym: ''Anubias nana'' Engler
* Dwarf, creeping, with heart-shaped leaves
* Leaf-stem: up to 5&nbsp;cm long
* Leaves: up to 6&nbsp;cm long and 3&nbsp;cm wide
* Height in aquarium: 5 – 10&nbsp;cm
Optimal conditions:
* Temperature: 22 - 27&nbsp;°C
* pH: 5.5 - 9.0
* Water hardness: 3 - 10 dGH
* Position in aquarium: front
* Usual growth rate: one leaf every month

;]
* Synonyms: ''Anubias gigantea'' var. ''tripartita'' Chevalier, ''Anubias hastifolia'' var. ''robusta'' Engler
* Large arrow-shaped leaves
* Leaf-stem: up to 83&nbsp;cm long
* Leaves: up to 30&nbsp;cm long and 14&nbsp;cm wide, with large lateral lobes up to 28&nbsp;cm long and 10&nbsp;cm broad
* Seldom used in aquariums

;]
* Initially heart-shaped, later with long rear fringes
* Leaf-stem: up to 40&nbsp;cm
* Leaves: arrow-shaped, 25&nbsp;cm long, 12 – 13&nbsp;cm wide, lateral lobes up to 13&nbsp;cm long
* Height in aquarium: 25 – 40&nbsp;cm
Optimal conditions:
* Temperature: 22 - 27&nbsp;°C
* pH: 6.0 - 8.0
* Water hardness: 4 - 10 dGH
* Position in aquarium: back
* Usual growth rate: 2 - 6 leaves per year

;]
* Whether this is a separate species or another variety of ''Anubias barteri'' is doubtful<ref name="Anubias" />
* Leaf-stem: up to 33&nbsp;cm
* Leaves: triangular heart-shaped, 12&nbsp;cm long, 4–10&nbsp;cm wide, lateral lobes up to 7&nbsp;cm long and 3&nbsp;cm wide
* Height in aquarium: 20 – 30&nbsp;cm
Optimal conditions:
* Temperature: 24 - 27&nbsp;°C
* pH: 6.0 - 8.0
* Water hardness: 5 - 12 dGH
* Position in aquarium: middle to back
* Usual growth rate: 2 - 6 leaves per year


;]
===Cultivation and uses===
* Synonyms: ''Amauriella hastifolia'' (Engler) Hepper, ''Anubias hastifolia'' var. ''sublobata'' Engler, ''Anubias auriculata'' Engler, ''Amauriella auriculata'' (Engler) Hepper, ''Anubias haullevilleana'' De Wildeman, ''Anubias laurentii'' De Wildeman, ''Amauriella obanensis'' Rendle, ''Amauriella talbotii'' Rendle
''Anubias'' are commonly used in ]s, usually attached to rocks or bogwood. In contrast to most plants, ''Anubias'' generally prefer subdued lighting and can also produce flowers underwater.
* Leaves: long heart-shaped
* Leaf-stem: up to 67&nbsp;cm long
* Leaves: up to 33&nbsp;cm long and 14&nbsp;cm wide, lateral lobes up to 26&nbsp;cm long and 8&nbsp;cm broad
* Height in aquarium: 30 – 50&nbsp;cm
Optimal conditions:
* Temperature: 22 - 27&nbsp;°C
* pH: 6.0 - 8.0
* Water hardness: < 20 dGH
* Position in aquarium: middle to back
* Usual growth rate: 2 - 6 leaves per year
]'']]
;]
* Synonyms: ''Anubias congensis'' N. E. Brown, ''Anubias congensis'' var. ''crassispadix'' Engler, ''Anubias affinis'' De Wildeman, ''Anubias engleri'' De Wildeman, ''Anubias bequaerti'' De Wildeman, ''Anubias undulata'' (trade name)
* Very large species, for tall aquariums
* Leaf-stem: up to 66&nbsp;cm long
* Leaves: 38&nbsp;cm long, 13&nbsp;cm wide, sometimes with very short basal lobes
* Height in aquarium: 25 – 60&nbsp;cm
Optimal conditions:
* Temperature: 24 - 27&nbsp;°C
* pH: 5.5 - 8.0
* Water hardness: 5 - 12 dGH
* Position in aquarium: back
* Usual growth rate: 2 - 4 leaves per year


;'']'' De Wildeman
This species is considered by many aquarists one of the easiest plants to maintain, since its light and nutrient requirements are very low and also because ] fish will not eat it.
* Leaf-stem: up to 45&nbsp;cm
* Leaves: up to 29&nbsp;cm long and 14&nbsp;cm broad


== See also ==
Its natural growth rate is very slow. Unfortunatelly, this species is also one of the few which do not respond to ].
*]
*]


==References==
==External links and references==
{{Reflist}}
*
*
*
*
*Hiscock, Peter (2003). "Encyclopedia of Aquarium Plants": 125-127.


{{Taxonbar|from=Q112429}}
]
]
{{Plant-stub}}


] ]
]
]
]
]
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Latest revision as of 09:09, 10 February 2024

Genus of flowering plants

Anubias
Anubias barteri var. nana on a bogwood (top view)
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Alismatales
Family: Araceae
Subfamily: Aroideae
Tribe: Anubiadeae
Genus: Anubias
Schott
Type species
A. afzelii
Schott
Species
Synonyms

Amauriella Rendle

Anubias is a genus of aquatic and semi-aquatic flowering plants in the family Araceae, native to tropical central and western Africa. They primarily grow in rivers and streams, but can also be found in marshes. They are characterized by broad, thick, dark leaves that come in many different forms. The genus was revised in 1979 and since then its nomenclature has been stable. Species can be determined by using mostly characteristics of the inflorescence. Because of the often shady places where the plants grow, the genus was named after the Egyptian god Anubis, the god of the afterlife. The genus was first described in 1857 by Heinrich Wilhelm Schott, with A. afzelii as its type species.

Reproduction and uses

Anubias, most notably the varying forms of A. barteri, are commonly used in aquariums, usually attached to rocks or bogwood. In contrast to most plants, Anubias generally prefer subdued lighting and can also produce flowers underwater. In the aquarium they should be placed in shaded areas, otherwise algae will develop on the leaves.

Anubias are considered by many aquarists some of the easiest plants to maintain, since their light and nutrient requirements are very low and also because herbivorous fish will not eat it (with a few exceptions). This is why Anubias are some of the few plants which can be used in aquariums with African cichlids and goldfishes.

Reproduction in artificial environments can be accomplished by stolon division or from side shoots. The stolon must always be above the substrate in order to survive, otherwise it will rot and the plant dies. Rather than planting Anubias directly into the soil, they should be attached to a piece of rock or driftwood, as they are more likely to grow and thrive when the rhizome and roots are left exposed instead of buried. It is also possible to propagate Anubias by seed.

The natural growth rate of all species in this genus is rather slow. Usually, they produce a leaf every 3 weeks, or even slower. And while they were once thought to be among the few plants that do not respond to CO2 addition, hobbyists have seen great results and improved growth with CO2 and high light intensity.

The most commonly available species of this genus is Anubias barteri Schott, which is polymorphic and subdivided into several varieties. The largest members of the genus are Anubias gigantea Chevalier ex Hutchinson and Anubias heterophylla Engler. Their leaf-stems can grow up to 83 cm, with leaves 40 cm long and 14 cm broad with lateral lobes up to 28 cm long and 10 cm broad. The smallest representative is Anubias barteri var. nana (Engler) Crusio, with a height up to 10 cm and with leaves up to 6 cm long and 3 cm broad.

Anubias can be grown emersed (above water). For this reason they may be used in paludariums.

Species and varieties

Anubias afzelii Schott
  • Narrow-leafed, medium-sized Anubias
  • Characteristics: plant with stolon
  • Leaf-stem: up to 20 cm
  • Leaves: 13–35 cm long, 3–13 cm broad
  • Height in aquarium: 25 – 30 cm

Optimal conditions:

  • Temperature: 22 - 28 °C
  • pH: 6.0 - 7.0
  • Water hardness: 2 dGH - 6 dGH
  • Position in aquarium: middle to back
  • Usual growth rate: one leaf every 2 months
Anubias barteri Schott

Common varieties:

Anubias barteri var. angustifolia (Engler) Crusio
  • Synonym: Anubias lanceolata f. angustifolia Engler
  • Narrow leaves, similar to afzelii, but much smaller
  • Leaf-stem: up to 32 cm
  • Leaves: up to 18 cm long, up to 3.5 cm wide
  • Height in aquarium: 10 – 15 cm

Optimal conditions:

  • Temperature: 20 - 27 °C
  • pH: 5.5 - 8.0
  • Water hardness: < 8 dGH
  • Position in aquarium: middle
  • Usual growth rate: one leaf every 2 months
Anubias barteri var. barteri
  • Compact, heart-shaped anubias
  • Leaf-stem: up to 23 cm
  • Leaves: 7–23 cm long, 4–11 cm wide
  • Height in aquarium: 25 – 45 cm

Optimal conditions:

  • Temperature: 20 - 27 °C
  • pH: 5.5 - 9.0
  • Water hardness: < 20 dGH
  • Position in aquarium: back
  • Usual growth rate: one leaf every 3 months
Anubias barteri var. caladiifolia Engler
  • Heart-shaped anubias
  • Leaf-stem: up to 54 cm
  • Leaves: 10–23 cm long, 5–14 cm wide
  • Height in aquarium: 7 – 30 cm

Optimal conditions:

  • Temperature: 20 - 27 °C
  • pH: 5.5 - 8.0
  • Water hardness: < 20 dGH
  • Position in aquarium: middle to back
  • Usual growth rate: one leaf every 2 months
Anubias barteri var. glabra N. E. Brown
  • Synonyms: Anubias lanceolata N. E. Brown, Anubias minima Chevalier.
  • Narrow-leafed, large anubias
  • Leaf-stem: up to 35 cm long
  • Leaves: spear-shaped, up to 21 cm long, 9 cm wide
  • Height in aquarium: 30 – 50 cm

Optimal conditions:

  • Temperature: 22 - 27 °C
  • pH: 5.5 - 8.0
  • Water hardness: < 20 dGH
  • Position in aquarium: back
  • Usual growth rate: 4 - 8 leaves per year
Anubias barteri var. nana (Engler) Crusio
  • Synonym: Anubias nana Engler
  • Dwarf, creeping, with heart-shaped leaves
  • Leaf-stem: up to 5 cm long
  • Leaves: up to 6 cm long and 3 cm wide
  • Height in aquarium: 5 – 10 cm

Optimal conditions:

  • Temperature: 22 - 27 °C
  • pH: 5.5 - 9.0
  • Water hardness: 3 - 10 dGH
  • Position in aquarium: front
  • Usual growth rate: one leaf every month
Anubias gigantea Chevalier ex Hutchinson
  • Synonyms: Anubias gigantea var. tripartita Chevalier, Anubias hastifolia var. robusta Engler
  • Large arrow-shaped leaves
  • Leaf-stem: up to 83 cm long
  • Leaves: up to 30 cm long and 14 cm wide, with large lateral lobes up to 28 cm long and 10 cm broad
  • Seldom used in aquariums
Anubias gilletii De Wildeman & Durand
  • Initially heart-shaped, later with long rear fringes
  • Leaf-stem: up to 40 cm
  • Leaves: arrow-shaped, 25 cm long, 12 – 13 cm wide, lateral lobes up to 13 cm long
  • Height in aquarium: 25 – 40 cm

Optimal conditions:

  • Temperature: 22 - 27 °C
  • pH: 6.0 - 8.0
  • Water hardness: 4 - 10 dGH
  • Position in aquarium: back
  • Usual growth rate: 2 - 6 leaves per year
Anubias gracilis Chevalier ex Hutchinson
  • Whether this is a separate species or another variety of Anubias barteri is doubtful
  • Leaf-stem: up to 33 cm
  • Leaves: triangular heart-shaped, 12 cm long, 4–10 cm wide, lateral lobes up to 7 cm long and 3 cm wide
  • Height in aquarium: 20 – 30 cm

Optimal conditions:

  • Temperature: 24 - 27 °C
  • pH: 6.0 - 8.0
  • Water hardness: 5 - 12 dGH
  • Position in aquarium: middle to back
  • Usual growth rate: 2 - 6 leaves per year
Anubias hastifolia Engler
  • Synonyms: Amauriella hastifolia (Engler) Hepper, Anubias hastifolia var. sublobata Engler, Anubias auriculata Engler, Amauriella auriculata (Engler) Hepper, Anubias haullevilleana De Wildeman, Anubias laurentii De Wildeman, Amauriella obanensis Rendle, Amauriella talbotii Rendle
  • Leaves: long heart-shaped
  • Leaf-stem: up to 67 cm long
  • Leaves: up to 33 cm long and 14 cm wide, lateral lobes up to 26 cm long and 8 cm broad
  • Height in aquarium: 30 – 50 cm

Optimal conditions:

  • Temperature: 22 - 27 °C
  • pH: 6.0 - 8.0
  • Water hardness: < 20 dGH
  • Position in aquarium: middle to back
  • Usual growth rate: 2 - 6 leaves per year
Anubias heterophylla
Anubias heterophylla Engler
  • Synonyms: Anubias congensis N. E. Brown, Anubias congensis var. crassispadix Engler, Anubias affinis De Wildeman, Anubias engleri De Wildeman, Anubias bequaerti De Wildeman, Anubias undulata (trade name)
  • Very large species, for tall aquariums
  • Leaf-stem: up to 66 cm long
  • Leaves: 38 cm long, 13 cm wide, sometimes with very short basal lobes
  • Height in aquarium: 25 – 60 cm

Optimal conditions:

  • Temperature: 24 - 27 °C
  • pH: 5.5 - 8.0
  • Water hardness: 5 - 12 dGH
  • Position in aquarium: back
  • Usual growth rate: 2 - 4 leaves per year
Anubias pynaertii De Wildeman
  • Leaf-stem: up to 45 cm
  • Leaves: up to 29 cm long and 14 cm broad

See also

References

  1. ^ Crusio, W. (1979). "A revision of Anubias Schott (Araceae). (Primitiae Africanae XII)". Mededelingen Landbouwhogeschool Wageningen. 79 (14): 1–48. Retrieved 2010-12-26.
  2. Schott, H. (December 1857). "Aroideen Skizzen". Österreichisches Botanisches Wochenblatt (in German and Latin). 7 (50): 398–399. doi:10.1007/BF02071618.
  3. Christel Kasselmann (2002). Aquarium Plants. Malabar, FL: Krieger Publishing Company. pp. 104. ISBN 1-57524-091-2.
  4. ^ Crusio WE (1987). "Die Gattung Anubias SCHOTT (Araceae)". Aqua Planta (in German). Sonderheft (1): 1–44.
Taxon identifiers
Anubias
Categories: