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Asplenium trichomanes
quadrivalens
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Photo: Petra Ballings
BR
Photo: Petra Ballings
BR
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| Synonyms: |
Asplenium anceps Sol. ex Lowe Asplenium germanicum J.Cardoso Asplenium trichomanes L. var. genuinum Willk. Chamaefilix trichomanes (L.) Farw. |
| Common names: | |
| Frequency: | |
| Status: | |
| Description: |
Rhizome erect; scales dark brown, lanceolate, up to 4 mm long, margins minutely serrulate. Fronds tufted, not proliferous. Stipe up to 9 cm, glabrous, dark-brown to almost black, shiny. Lamina 6-23 cm × 1-1.5 cm, pinnate, oblong-linear in outline. Pinnae obovate to oblong-circular, up to 32 pairs, margins entire to subentire, glabrous above, a few minute scales below. Rhachis dark-brown to blackish, glabrous. Sori 3 or 4 pairs per pinna at 30-45° to the costa, linear or elongate; indusium entire. |
| Notes: | |
| Derivation of specific name: | trichomanes: a growth of hair, it was believed that this fern was a hair restorer.
quadrivalens: quad- = four; valens = strong, stout, powerful. |
| Habitat: | Basophilic volcanic rocks in open areas |
| Altitude range: | 2893 m (approx) |
| Worldwide distribution: | Africa, Macaronesia, Britain, North America |
| Growth form(s): | Epiphyte. |
| Endemic status: | |
| Red data list status: | |
| Insects associated with this species: | |
| Spot characters: | Display spot characters for this species |
| Literature: |
Burrows, J.E. (1990). Southern African Ferns and Fern Allies. Frandsen, Sandton. Pages 228 - 229. (Includes a picture). Crouch, N.R., Klopper, R.R., Burrows, J.E. & Burrows, S.M. (2011). Ferns of Southern Africa, A comprehensive guide Struik Nature Pages 614 - 615. (Includes a picture). Fisher E. & Lobin W. (2024). Checklist of Lycopodiopsida (clubmosses and quillworts) and Polypodiopsida (ferns) of Rwanda. Willdenowia 53(3) Page 158. Golding, J.S. (ed.) (2002). Zimbabwe Plant Red Data List. Southern African Plant Red Data Lists. SABONET 14 Page 179. As Asplenium trichomanes Jacobsen, W.B.G. (1983). The Ferns and Fern Allies of Southern Africa. Butterworths, Durban and Pretoria. Pages 341 - 342. (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 5. Roux, J.P. (2001). Conspectus of Southern African Pteridophyta. Southern African Botanical Diversity Network Report 13 Page 172. Roux, J.P. (2009). Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands Page 99. Schelpe, E.A.C.L.E. (1970). Pteridophyta Flora Zambesiaca Pages 174 - 175. |
Other sources of information about Asplenium trichomanes subsp. quadrivalens:
Our websites:
Flora of Zimbabwe: Asplenium trichomanes subsp. quadrivalensExternal websites:
African Plants: A Photo Guide (Senckenberg): Asplenium trichomanesAfrican Plant Database: Asplenium trichomanes
BHL (Biodiversity Heritage Library): Asplenium trichomanes
EOL (Encyclopedia of Life): Asplenium trichomanes
GBIF (Global Biodiversity Information Facility): Asplenium trichomanes
Google: Web - Images - Scholar
iNaturalist: Asplenium trichomanes
IPNI (International Plant Names Index): Asplenium trichomanes
JSTOR Plant Science: Asplenium trichomanes
Mansfeld World Database of Agricultural and Horticultural Crops: Asplenium trichomanes
Plants of the World Online: Asplenium trichomanes
Tropicos: Asplenium trichomanes
Wikipedia: Asplenium trichomanes
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