Adiantum raddianum C.Presl

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Adiantum raddianum

Photo: Petra Ballings
Camp site, Chirinda Forest

Adiantum raddianum

Photo: Petra Ballings
Camp site, Chirinda Forest

Adiantum raddianum

Photo: Petra Ballings
Camp site, Chirinda Forest

Adiantum raddianum

Photo: Petra Ballings
Road from Mt Selinda to Espungabera border post

Adiantum raddianum

Photo: Petra Ballings
Road from Mt Selinda to Espungabera border post

Adiantum raddianum

Photo: Petra Ballings
Ndundu Lodge, Vumba

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

Synonyms: Adiantum cuneatum Langsd. & Fisch.
Common names:
Frequency:
Status: Naturalised
Description:
Rhizome short, creeping; rhizome scales brown, lanceolate, entire. Fronds closely spaced to tufted, thinly herbaceous, arching. Stipe up to 25 cm long, thin, shiny, dark brown to black, glabrous. Lamina 3-4 pinnate, triangular to broadly ovate in outline, 10-25 × 8-15 cm, glabrous. Rhachis and stalks black, glabrous. Pinnules persistent, 1.2 × 1 cm, obcuneate to trapeziform with straight sides, outer margin irregularly incised into rounded lobes with toothed margins, veins ending in the sinuses of the marginal serrations. Sori on the outer margins of ultimate segments, indusial flaps broadly overlapping the sori, kidney shaped to circular, c. 1.5 mm in diameter.
Notes: Recorded as cultivated and naturalised on the list of species for Chirinda Forest.
The small persistent pinnules, serrated outer margin with the veins ending in between the serrations and the reniform to almost circular sori distinguish A. raddianum from similar species.
Derivation of specific name: raddianum: named after Guiseppe Raddi (1770-1829), Italian botanist who collected in Brazil from where the type originates.
Habitat: Terrestrial, shaded moist earthbanks, roadcuttings and streambanks in forest.
Altitude range: (metres) 100 - 1700 m
Worldwide distribution: Native to South America, widely escaped throughout the moister regions of Africa.
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: Wednesday 11 July 2012
Literature:

Burrows, J.E. (1990). Southern African Ferns and Fern Allies. Frandsen, Sandton. Page 126. (Includes a picture).

Burrows, J.E. , Burrows, S.M. (1993). An annotated check-list of the pteridophytes of Malawi Kirkia 14(1) Page 86.

Crouch, N.R., Klopper, R.R., Burrows, J.E. & Burrows, S.M. (2011). Ferns of Southern Africa, A comprehensive guide Struik Nature Pages 436 - 437. (Includes a picture).

Jacobsen, W.B.G. (1983). The Ferns and Fern Allies of Southern Africa. Butterworths, Durban and Pretoria. Pages 232 - 233. (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 9.

Roux, J.P. (2001). Conspectus of Southern African Pteridophyta. Southern African Botanical Diversity Network Report 13 Page 77.

Roux, J.P. (2009). Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands Page 70.

Schelpe, E.A.C.L.E. (1970). Pteridophyta Flora Zambesiaca Page 113.


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Other sources of information about Adiantum raddianum:

Our websites:

Flora of Malawi: Adiantum raddianum
Flora of Mozambique: Adiantum raddianum

External websites:

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


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: Adiantum raddianum.
http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=101050, retrieved 31 May 2016

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