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This species is accepted, and its native range is Nigeria to Ethiopia and S. Africa, Madagascar, Réunion.

[FTEA]

Thelypteridaceae, Bernard Verdcourt. Flora of Tropical East Africa. 2006

Type
Type: Madagascar, Centre, Betafo, Perrier 7582 (P, holo., seen by Holttum)
Vegetative Multiplication Rhizomes
Rhizome erect with narrowly ovate brown scales 4 mm long and tufted fronds 0.3–1.2 m tall
Morphology Leaves Stipes
Stipe 2–33 cm long, thinly pubescent
Morphology Leaves Leaf lamina
Lamina lanceolate to narrowly oblong-lanceolate, 30–90 cm long, 3.5–21 cm wide, bipinnatifid; lower pinnae descrescent with usually 3–7 lowest pairs much reduced, auriculate; middle pinnae narrowly lanceolate, 2.5–12 cm long, 0.3–1.8 cm wide; lobes oblong to linear-oblong, 8 mm long, 2–3 mm wide with 6–7 pairs of veins, costae hairy on both sides, typically with red or orange glands beneath but these vary greatly in quantity and can be entirely lacking; hooked hairs absent (but see note)
Morphology Reproductive morphology Sori Indusium
Indusium very small and soon deciduous or ± absent
Figures
Fig 2/6–8, p 7
Ecology
Evergreen forest ( Olea – Juniperus etc.), bamboo forest, Erica forest, usually in wet places, swamps, near water and open marshy savanna stream banks, also rock ledges on cliff; 1200–3000 m
Note
Grimshaw 93/774 (Tanzania, Kilimanjaro, above Lerang’wa (not traced), 2 Oct. 1993) has red glands and a few hooked hairs. Whether this is a hybrid needs further investigation. Several specimens from Uganda appear to be A. oppositiformis or have actually been annotated by Holttum as such but lack red glands or have very few. More work needs to be done to assess accurately the status of these two taxa. The two occur together e.g. Faden et al. 762 and 768 both from Kenya, Meru District, Ithanguni Forest. In the past most specimens of A. oppositiformis were annotated as A. bergiana.
Distribution
Range: Nigeria, Cameroon, Congo (Kinshasa), Rwanda, Burundi, Sudan, Ethiopia, Zimbabwe; Réunion, Madagascar Flora districts: U2 U3 K3 K4 T2 T4 T6 T7

Native to:

Burundi, Cameroon, Ethiopia, Kenya, KwaZulu-Natal, Madagascar, Nigeria, Northern Provinces, Rwanda, Réunion, Sudan, Tanzania, Uganda, Zaïre, Zimbabwe

Thelypteris oppositiformis (C.Chr.) Ching appears in other Kew resources:

First published in Bull. Fan Mem. Inst. Biol., Bot. 10: 253 (1941)

Accepted by

  • Roux, J.P. (2016). The Lycopods and Ferns of Drakensberg and Lesotho: 1-384. Briza academic books, Pretoria, South Africa.

Not accepted by

  • Roskov Y. & al. (eds.) (2018). World Ferns: Checklist of Ferns and Lycophytes of the World Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands. [Cited as Amauropelta oppositiformis.]

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0