204.400 Azolla Lam.

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

Henderson, L. (2001) Alien weeds and invasive plants Plant Protection Research Institute Handbook No. 12. Plant Protection Research Institute, Agricultural Research Council, S Africa.

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

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

Schelpe, E.A.C.L.E. (1970) Pteridophyta FZ

Description of the genus

Free-floating aquatic plants; rhizomes slender, roots simple. Leaves alternate in 2 rows, equally lobed with submerged lobe containing cavities with cyanobacteria and a chlorophyllous floating lobe, veins free. Sori in sporocarps borne in axils of submerged lobes.

Derivation of name: azo: dry, ollyo: to kill; plants are killed by drought

Comment: Some authors place the genus Azolla within the family of the Azollaceae. Recent literature (Roux 2009, Crouch 2011) however include the genus Azolla within the Salviniaceae.

Worldwide: c.6 species in tropical and warm areas, introduced in many ares

Zimbabwe: 3 taxa.

Azolla filiculoides

Links to taxa:     View: living plant images - herbarium specimen images - all images for this genus

SpeciesLinks to mapsFZ divisionsContent
filiculoides Lam.N,C,EDescription, Image
nilotica Decne. ex Mett.N,WDescription, Image
pinnata R. Br. subsp. africana (Desv.) R.M.K. Saunders & K. FowlerN,WDescription, Image

Other sources of information about Azolla:

Our websites:

Flora of Mozambique: Azolla
Flora of Zambia: Azolla

External websites:

ePIC (electronic Plant Information Center): Azolla
Flora Zambesiaca web site: Azolla
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network) taxonomy for plants report for Azolla
IPNI (International Plant Names Index): Azolla
Kew Herbarium catalogue: Azolla

Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-14

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2014). Flora of Zimbabwe: Genus page: Azolla.
http://www.zimbabweflora.co.zw/speciesdata/genus.php?genus_id=89, retrieved 21 April 2014

Site software last modified: 12 October 2013 9:05pm (GMT +2)
Terms of use