Pneumatopteris unita (Kunze) Holttum

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Pneumatopteris unita

Photo: Petra Ballings
Fern gully, Vumba

Pneumatopteris unita

Photo: Petra Ballings
Fern gully, Vumba

Pneumatopteris unita

Photo: Petra Ballings
Fern gully, Vumba

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Species details: Click on each item to see an explanation of that item (Note: opens a new window)

Synonyms: Dryopteris madagascariensis (Fée) C.Chr.
Goniopteris patens Fée
Polypodium unitum (Kunze) Hook.
Thelypteris madagascariensis (Fée) Schelpe
Common names:
Frequency:
Status: Native
Description:
Rhizome erect to suberect. Fronds tufted, arching, proliferous on the rhachis near the apex, herbaceous. Stipe up to 60 cm long, pale brown, hairless, with a swollen aerophore at the base. Lamina up to 1.8 × 0.5 m, ovate-lanceolate to linear-oblong in outline, pinnate, apex with terminal pinna narrowly deltoid, lobed, lower pinnae hardly reduced in size, somewhat deflexed. Pinnae narrowly oblong, sessile, base truncate, apex long and abruptly tapering to a point, margin shallowly incised into broadly oblong, rounded, entire lobes with 4-5 pairs of veins meeting below the sinus; undersurface sparsely set with short white hairs on costae, costules and veins, upper surface with sporadic pale hairs. Rhachis pale brown, hairless, kinked where the gemmae emerge. Sori round, small, situated close to the costules in the basal half of each lobe; exindusiate.
Notes: Resembles Ampelopteris prolifera which has a several gemmae positioned along the rhachis, a shortly creeping rhizome and 5-7 pairs of veins meeting below the sinus; this species is not found in evergreen forest.
Pneumatopteris unita look for: a single gemmae, erect rhizome, 4-5 pairs of veins anostomosing.
Derivation of specific name: unita: united; refers to the several pairs of veins which meet (anostomose)below the sinus between adjacent pinna lobes.
Habitat: Seepage zones along streams or moist floors in shade in high-rainfall, evergreen forest.
Altitude range: (metres) 1000 - 1800 m
Worldwide distribution: Bioko, Burundi, DRC, Ethiopia, Kenya, Liberia, Madagascar, Malawi, Mozambique, Rwanda, South Africa, Sudan, Swaziland, Tanzania, Uganda, Zambia, 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
Images last updated: Sunday 17 February 2013
Literature:

Burrows, J.E. (1990). Southern African Ferns and Fern Allies. Frandsen, Sandton. Page 262. As Thelypteris madagascariensis (Includes a picture).

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 madagascariensis (Includes a picture).

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

Crouch, N.R., Klopper, R.R., Burrows, J.E. & Burrows, S.M. (2011). Ferns of Southern Africa, A comprehensive guide Struik Nature Pages 680 - 681. (Includes a picture).

Da Silva, M.C., Izidine, S. & Amude, A.B. (2004). A preliminary checklist of the vascular plants of Mozambique. Southern African Botanical Diversity Network Report No. 30 Sabonet, Pretoria Page 15.

Jacobsen, W.B.G. (1983). The Ferns and Fern Allies of Southern Africa. Butterworths, Durban and Pretoria. Pages 399 - 400. (Includes a picture).

Kornas, J. (1979). Distribution and ecology of the Pteridophytes in Zambia Polska Akademia Nauk Wydzial II Nauk Biologicznych Page 92. As Thelypteris madagascariensis

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 118. (Includes a picture).

Roux, J.P. (2009). Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands Pages 208 - 209.

Schelpe, E.A.C.L.E. (1970). Pteridophyta Flora Zambesiaca Pages 196 - 197. As Thelypteris madagascariensis (Includes a picture).


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Other sources of information about Pneumatopteris unita:

Our websites:

Flora of Malawi: Pneumatopteris unita
Flora of Mozambique: Pneumatopteris unita
Flora of Zambia: Pneumatopteris unita

External websites:

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


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: Pneumatopteris unita.
http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=101720, retrieved 7 December 2016

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