Marsilea nubica A. Braun
var. gymnocarpa (Lepr. ex A. Braun) Launert

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Marsilea nubica var. gymnocarpa

Photo: Bart Wursten

Marsilea nubica var. gymnocarpa

Photo: Petra Ballings

Marsilea nubica var. gymnocarpa

Photo: Petra Ballings

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Synonyms: Marsilea gymnocarpa Lepr. ex A. Braun
Common names:
Status: Native
Floating form: stipe up to 14 cm long. Leaflets up to 35 mm long, outer margin uneven with shallow indentations. Dry land form: stipe 1.5-6 cm long. Leaflets up to 7 mm long, outer margins entire to very shallowly irregular. Sporocarps: usually single, or crowded at stipe base; very glossy, shiny black, with a few flattened scales when young becoming glabrous with age, smooth with minute dots, with the black outer layer becoming detached and peeling; broadly to narrowly deltate in lateral view, vertical cross-section elliptic; lower tooth absent, upper tooth a slight hump. Sporocarp with its long axis pointing downwards; pedicels up to 3 mm long, free, arising from the axil of the stipe.
Notes: Characteristic for this species is the black, glossy sporocarps, with the outer layer peeling of at maturity.
Derivation of specific name: nubica: from Nubia, from north-east africa (Sudan); gymnocarpa: naked fruit, outer layer of sporocarp peels of leaving it "naked" beneath.
Habitat: Acacia or Mopane woodland, in sandy soils or fine clay accumulated in seasonally flooded pans, ponds and pools.
Altitude range: (metres)
Worldwide distribution: Angola, Botswana, Namibia, Zimbabwe. Also Madagascar.
Zimbabwe distribution: N,W
Growth form(s): Aquatic, 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. Pages 67 - 68. (Includes a picture).

Crouch, N.R., Klopper, R.R., Burrows, J.E. & Burrows, S.M. (2011). Ferns of Southern Africa, A comprehensive guide Struik Nature Pages 228 - 231. (Includes a picture).

Jacobsen, W.B.G. (1983). The Ferns and Fern Allies of Southern Africa. Butterworths, Durban and Pretoria. Pages 475 - 476. As M. nubica (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 8.

Roux, J.P. (2001). Conspectus of Southern African Pteridophyta. Southern African Botanical Diversity Network Report 13 Page 177.

Roux, J.P. (2009). Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands Page 57.

Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 15.

Timberlake, J.R. & Childes, S.L. (2004). Biodiversity of the Four Corners Area: Technical Reviews Volume Two (Chapter 5-15) Appendix 5-1: Plant Checklist Occasional Publications in Biodiversity 15 Page 179.


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Other sources of information about Marsilea nubica var. gymnocarpa:

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Flora of Botswana: Marsilea nubica var. gymnocarpa
Flora of Caprivi: Marsilea nubica var. gymnocarpa

External websites:

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

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: Marsilea nubica var. gymnocarpa., retrieved 21 October 2016

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