Pteridophyta: Schizaeales

Lygodiaceae - Climbing ferns

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

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 Flora Zambesiaca

Description of the family

Plants terrestrial, climber. Rhizome horizontal creeping, slender, dichotomously branched. Fronds climbing, numerous, dimorphic, specialised fertile pinnae with strongly reduced lamina parts bearing aggregated sporangia in marginal spike-like masses; with a slender twisting indeterminate rhachis, stipe cylindric, rhachis cylindrical to slightly flattened adaxially. Indumentum composed of single uniseriate hairs confined to the frond axes and veins, veins free.
The climbing stem is in fact the stipe and the rhachis of an elongated frond. Secondary rhachis branches absent or present, alternate, dichotomously branched, with an arrested apical bud in each bifurcation. Pinnae borne in pairs along the secondary rhachis. Pinnae pinnate to 3-pinnatifid. Sporangia borne along the margins of pinnule lobes, borne seperately in 2 rows at the veins endings, each sporangium subtended by an indusia-like flange covering it abaxially, homosporous.

Worldwide: 1 genus, c. 40 species worldwide

Zimbabwe: 1 genus and 2 taxa.

Lygodium kerstenii

Links to genera:     View: living plant images - herbarium specimen images - all images for this family

GenusContent
Lygodium Sw.Description, Image

Other sources of information about Lygodiaceae:

Our websites:

Flora of Malawi: Lygodiaceae
Flora of Mozambique: Lygodiaceae
Flora of Zambia: Lygodiaceae

External websites:

GRIN (Germplasm Resources Information Network) taxonomy for plants report for Lygodiaceae
Google: Web - Images - Scholar


Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-17

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2017). Flora of Zimbabwe: Family page: Lygodiaceae.
http://www.zimbabweflora.co.zw/speciesdata/family.php?family_id=127, retrieved 23 April 2017

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