Christella chaseana (Schelpe) Holttum

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Christella chaseana

Photo: Petra Ballings

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Synonyms: Lastrea chaseana (Schelpe) Pic.Serm.
Thelypteris chaseana Schelpe
Common names:
Rhizome creeping, up to 20 mm in diameter; rhizome scales up to 11 mm long, brown, lanceolate, thinly pilose, entire. Fronds closely spaced, erect or slightly arching, not proliferous, herbaceous. Stipe up to 63 cm long, pale brown, hairless with dark brown scales near the base. Lamina up to 80 × 30 cm, narrowly elliptic to lanceolate in outline, deeply 2-pinnatifid, apex tapering to a point with a deeply pinnatifid terminal segment, basal 3-5 pairs of pinnae reduced and deflexed. Pinnae narrowly oblong, ultimate lobes narrowly oblong, slightly falcate, apex rounded, basal acroscopic lobe enlarged and sometimes overlapping the rhachis; both surfaces hairy, more so along the veins, costa and costules; veins 1 pair meeting at the sinus. Rhachis strawcoloured, pilose. Sori round, up to 16 per lobe; indusia small,subcircular to kidney-shaped with long white hairs.
Derivation of specific name: chaseana: named for Norman C. Chase (1888 - 1970), one of our foremost collectors of Zimbabwean plants, particularly of ferns.
Altitude range:
Worldwide distribution: Angola, Cameroon, Congo, Ethiopia, Kenya, Malawi, Mozambique, Namibia, South Africa, Tanzania, Uganda, Zambia, Zimbabwe.
Malawi distribution: N,C,S
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. Pages 265 - 266. As Thelypteris chaseana (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 43. as Thelypteris chaseana

Crouch, N.R., Klopper, R.R., Burrows, J.E. & Burrows, S.M. (2011). Ferns of Southern Africa, A comprehensive guide Struik Nature Pages 690 - 691. (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.

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 25. As Thelypteris chaseana

Jacobsen, W.B.G. (1983). The Ferns and Fern Allies of Southern Africa. Butterworths, Durban and Pretoria. Pages 392 - 393. (Includes a picture).

Kornas, J. (1979). Distribution and ecology of the Pteridophytes in Zambia Polska Akademia Nauk Wydzial II Nauk Biologicznych Pages 87 - 88. As Thelypteris chaseana

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 121.

Roux, J.P. (2009). Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands Page 202.

Schelpe, E.A.C.L.E. (1970). Pteridophyta Flora Zambesiaca Pages 194 - 195. As Thelypteris chaseana

Other sources of information about Christella chaseana:

Our websites:

Flora of Mozambique: Christella chaseana
Flora of Zambia: Christella chaseana
Flora of Zimbabwe: Christella chaseana

External websites:

African Plants: A Photo Guide (Senckenberg): Christella chaseana
BHL (Biodiversity Heritage Library): Christella chaseana
EOL (Encyclopedia of Life): Christella chaseana
GBIF (Global Biodiversity Information Facility): Christella chaseana
Google: Web - Images - Scholar
iNaturalist: Christella chaseana
IPNI (International Plant Names Index): Christella chaseana
JSTOR Plant Science: Christella chaseana
Mansfeld World Database of Agricultural and Horticultural Crops: Christella chaseana
Plants of the World Online: Christella chaseana
Tropicos: Christella chaseana
Wikipedia: Christella chaseana

Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2014-24

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2024). Flora of Malawi: Species information: Christella chaseana., retrieved 17 April 2024

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