Asplenium inaequilaterale Willd.

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Asplenium inaequilaterale

Photo: Petra Ballings
BR

Asplenium inaequilaterale

Photo: Petra Ballings
BR

Asplenium inaequilaterale

Photo: Petra Ballings
Chirinda Forest

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Synonyms: Asplenium brachyotus Kunze
Asplenium erectum Bory ex Willd. var. brachyotus (Kunze) Sim
Asplenium laetum sensu Sim
Asplenium suppositum Hieron.
Common names:
Frequency:
Status: Native
Description:
Rhizome erect, up to 8 mm diameter; scales 2.5 mm long, dark brown, entire. Fronds not proliferous, tufted. Stipe up to 19 cm, stipe and rhachis pale to dark matt brown, hairless. Lamina 12-30 cm × 4-10 cm, pinnate and narrowly triangular in outline. Pinnae 12-20 pairs, lanceolate, glabrous, base asymmetric with a well developed acroscopic lobe, apex acute, margins irregularly crenate. Sori 5-12 pair, linear, situated on each pinnae at 45 degrees to the costa, indusium entire.  
Notes: Differs from similar species by not having basal pinnae reducing in size, base strongly asymmetrical but the midrib does not form the lower margin for a significant distance.
Derivation of specific name: inaequilaterale: unequally sided, the pinnae bases of this species are asymmetric.
Habitat: Deep shade in moist evergreen forest. Terrestrial or lithophyte.
Altitude range: (metres) 100 - 1800 m
Worldwide distribution: Angola, Bioko, Burundi, Cameroon, Central African Republic, DRC, Ethiopia, Gabon, Ghana, Guinea, Kenya, Liberia, Malawi, Mozambique, Soa Tomé, Sierra Leone, South Africa, Sudan, Swaziland, Tanzania, Togo, Uganda, Zambia, Zimbabwe, Madagascan region
Zimbabwe distribution: N,E,S
Growth form(s): Lithophyte, terrestrial.
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters: Display spot characters for this species
Images last updated: Monday 24 October 2011
Literature:

Burrows, J.E. (1990). Southern African Ferns and Fern Allies. Frandsen, Sandton. Pages 222 - 223. (Includes a picture).

Burrows, J.E. , Burrows, S.M. (1993). An annotated check-list of the pteridophytes of Malawi Kirkia 14(1) Page 92.

Crouch, N.R., Klopper, R.R., Burrows, J.E. & Burrows, S.M. (2011). Ferns of Southern Africa, A comprehensive guide Struik Nature Pages 602 - 603. (Includes a picture).

Jacobsen, W.B.G. (1983). The Ferns and Fern Allies of Southern Africa. Butterworths, Durban and Pretoria. Pages 347 - 348. (Includes a picture).

Kornas, J. (1979). Distribution and ecology of the Pteridophytes in Zambia Polska Akademia Nauk Wydzial II Nauk Biologicznych Page 100.

Mapaura, A. & Timberlake, J. (eds) (2004). A checklist of Zimbabwean vascular plants Southern African Botanical Diversity Network Report No. 33 Sabonet, Pretoria and Harare Page 5.

Roux, J.P. (2001). Conspectus of Southern African Pteridophyta. Southern African Botanical Diversity Network Report 13 Page 166.

Roux, J.P. (2009). Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands Page 88.

Schelpe, E.A.C.L.E. (1970). Pteridophyta Flora Zambesiaca Page 176. (Includes a picture).


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Other sources of information about Asplenium inaequilaterale:

Our websites:

Flora of Malawi: Asplenium inaequilaterale
Flora of Mozambique: Asplenium inaequilaterale
Flora of Zambia: Asplenium inaequilaterale

External websites:

African Plant Database: Asplenium inaequilaterale
Biodiversity Explorer (Biodiversity of southern Africa): Asplenium inaequilaterale
EOL (Encyclopedia of Life): Asplenium inaequilaterale
ePIC (electronic Plant Information Center): Asplenium inaequilaterale
Flora Zambesiaca web site: Asplenium inaequilaterale
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network) taxonomy for plants report for Asplenium inaequilaterale
IPNI (International Plant Names Index): Asplenium inaequilaterale
Ispot Southern Africa : Asplenium inaequilaterale
JSTOR Plant Science: Asplenium inaequilaterale
Kew Herbarium catalogue: Asplenium inaequilaterale
Tropicos: Asplenium inaequilaterale
West African Plants database: Asplenium inaequilaterale


Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-16

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2016). Flora of Zimbabwe: Species information: Asplenium inaequilaterale.
http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=102550, retrieved 30 May 2016

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