Amauropelta oppositiformis (C. Chr.) Holttum

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Synonyms: Thelypteris oppositiformis (C. Chr.) Ching
Thelypteris strigosa sensu Schelpe
Common names:
Frequency: Rare
Status: Native
Rhizome short erect; rhizome scales up to 4 mm long, brown, narrowly ovate, entire. Fronds tufted, erect to arching, not proliferous, herbaceous. Stipe up to 4 cm long, matt to dark brown, with minute white hairs. Lamina up to 60 × 15 cm, narrowly oblong-lanceolate to elliptic in outline, 2-pinnatifid, lower pinnae gradually reduced and widely spaced, lowest pinnae auriculate, reduced and reflexed. Pinnae narrowly oblong-lanceolate, up to 9 × 1.5 cm; upper surface with short, white hairs; lower surface subglabrous but with distinctive yellowish or reddish glands particularly along the veins and the costules. Ultimate lobes oblong, apex rounded to acute, margins entire; veins 6-7 pairs, not meeting the veins of the adjacent lobes. Rhachis pale brown, thinly set with minute pale hairs. Sori up to 8 per lobe; exindusiate or indusia small, with short white hairs, very quickly falling off.
Notes: A. bergiana resembles A. oppositiformis but has hooked hairs on lower surface of lamina and a minute indusium without glands but with minute hairs.
A. oppositiformis look for: straight hairs, golden to red glands on lower surface of lamina, exindusiate or indusia falling off early, basal pinnae gradually decrescent becoming increasingly auricled, veins of pinnae lobes not meeting below sinus.
Derivation of specific name: oppositiformis: formed opposite; refers to the opposite position of the pinnae.
Habitat: Along moist streambanks in montane grassland, full sun or shade.
Altitude range: (metres) 700 - 1680 m
Worldwide distribution: Burundi, Cameroon, DRC, Ethiopia, Kenya, Madagascar, Malawi, Nigeria, Rwanda, South Africa, Sudan, Tanzania, Uganda, Zimbabwe.
Zimbabwe distribution: E
Growth form(s): Terrestrial.
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters: Display spot characters for this species

Burrows, J.E. (1990). Southern African Ferns and Fern Allies. Frandsen, Sandton. Page 270. As Thelypteris oppositiformis (C.Chr.) Ching (Includes a picture).

Burrows, J.E. & Burrows, S.M. (1993). An annotated check-list of the pteridophytes of Malawi Kirkia 14(1) Page 95.

Burrows, J.E. & Willis, C.K. (eds) (2005). Plants of the Nyika Plateau Southern African Botanical Diversity Network Report No. 31 SABONET, Pretoria Page 45. as Thelypteris oppositiformis

Chapano, C. & Mamuto, M. (2003). Plants of the Chimanimani District National Herbarium and Botanic Garden, Zimbabwe Page 55. As Thelypteris oppositiformis

Crouch, N.R., Klopper, R.R., Burrows, J.E. & Burrows, S.M. (2011). Ferns of Southern Africa, A comprehensive guide Struik Nature Pages 698 - 699. (Includes a picture).

Dowsett-Lemaire, F. (1989). The flora and phytogeography of the evergreen forests of Malawi. I: Afromontane and mid-altitude forests; Bull. Jard. Bot. Nat. Belg. 59(1/2) Page 26. As Thelypteris strigosa

Jacobsen, W.B.G. (1983). The Ferns and Fern Allies of Southern Africa. Butterworths, Durban and Pretoria. Page 384. (Includes a picture).

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 10.

Roux, J.P. (2001). Conspectus of Southern African Pteridophyta. Southern African Botanical Diversity Network Report 13 Page 116.

Roux, J.P. (2009). Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands Page 200.

Schelpe, E.A.C.L.E. (1970). Pteridophyta Flora Zambesiaca Page 193. As Thelypteris strigosa (Willd.) Tardieu

Other sources of information about Amauropelta oppositiformis:

Our websites:

Flora of Malawi: Amauropelta oppositiformis

External websites:

African Plants: A Photo Guide (Senckenberg): Amauropelta oppositiformis
African Plant Database: Amauropelta oppositiformis
BHL (Biodiversity Heritage Library): Amauropelta oppositiformis
EOL (Encyclopedia of Life): Amauropelta oppositiformis
ePIC (electronic Plant Information Center): Amauropelta oppositiformis
Flora Zambesiaca web site: Amauropelta oppositiformis
GBIF (Global Biodiversity Information Facility): Amauropelta oppositiformis
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network): Amauropelta oppositiformis
iNaturalist: Amauropelta oppositiformis
IPNI (International Plant Names Index): Amauropelta oppositiformis
JSTOR Plant Science: Amauropelta oppositiformis
Kew Herbarium catalogue: Amauropelta oppositiformis
Mansfeld World Database of Agricultural and Horticultural Crops: Amauropelta oppositiformis
Plants of the World Online: Amauropelta oppositiformis
Tropicos: Amauropelta oppositiformis
Wikipedia: Amauropelta oppositiformis

Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-23

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2023). Flora of Zimbabwe: Species information: Amauropelta oppositiformis., retrieved 9 February 2023

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