Ophioglossum caroticaule J.E. Burrows

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Ophioglossum caroticaule

Photo: Petra Ballings

Ophioglossum caroticaule

Photo: Petra Ballings

Ophioglossum caroticaule

Photo: Petra Ballings

Ophioglossum caroticaule

Photo: Petra Ballings

Ophioglossum caroticaule

Photo: Petra Ballings
Nyanga, Cumberland

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Common names:
Status: Native
Rhizome short, ellipsoid to spindle-shaped, no persistent leaf bases; roots descending, sometimes becoming horizontal. Leaves up to 2 leaves but mostly 1, held at c.75° from the horizontal. Petiole up to 3.5 cm long, subterranean for about half of its length. Sterile lamina 14-39 × 2.5-5 mm, very narrowly elliptic in outline, apex pointed, base gradually diminishing in breadth, fertile lamina often concave above; fertile segment 3-6 cm long, inserted at or just above the base of the lamina. Sporangia 6-19 pairs.
Notes: O. gracillimum, O. lusoafricanum and O. sandiae are, like O. caroticaule, narrow leaved Ophioglossum species. The leaf width:length ratio of O. caroticaule (1:7.2) differs from O. gracillimum (1:10-20) and O. sandiae (1:4.5). O. lusoafricanum has a leaf width: length ratio of 1:7-9 and a slender, linear rhizome.
Derivation of specific name: caroticaule: rhizome resembling a carrot
Habitat: Seasonally wet areas over sheetrock among scrub and short grasses along streams, shallow soils beneath seasonally dry deciduous woodland, sometimes in high altitude grassland.
Altitude range: (metres) 700 - 1500 m
Worldwide distribution: Ethiopia, Kenya, South Africa, Tanzania, Uganda, Zambia, Zimbabwe
Zimbabwe distribution: N
Growth form(s): Lithophyte, terrestrial.
Endemic status:
Red data list status:
Insects associated with this species:
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Burrows, J.E. & Edwards, T.J. (1993). Nomenclatural changes and additions to the genus Ophioglossum in Africa Bothalia 23 (2) Page 186. (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 120 - 121. (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 32.

Roux, J.P. (2009). Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands Page 33.


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Flora of Zambia: Ophioglossum caroticaule

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African Plants: A Photo Guide (Senckenberg): Ophioglossum caroticaule
Biodiversity Explorer (Biodiversity of southern Africa): Ophioglossum caroticaule
BHL (Biodiversity Heritage Library): Ophioglossum caroticaule
EOL (Encyclopedia of Life): Ophioglossum caroticaule
ePIC (electronic Plant Information Center): Ophioglossum caroticaule
Flora Zambesiaca web site: Ophioglossum caroticaule
GBIF (Global Biodiversity Information Facility): Ophioglossum caroticaule
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network): Ophioglossum caroticaule
IPNI (International Plant Names Index): Ophioglossum caroticaule
Ispot Southern Africa: Ophioglossum caroticaule
JSTOR Plant Science: Ophioglossum caroticaule
Kew Herbarium catalogue: Ophioglossum caroticaule
Mansfeld World Database of Agricultural and Horticultural Crops: Ophioglossum caroticaule
The Plant List (version 1.1): Ophioglossum caroticaule
Tropicos: Ophioglossum caroticaule

Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-18

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2018). Flora of Zimbabwe: Species information: Ophioglossum caroticaule.
https://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=100220, retrieved 19 February 2018

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