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This species is accepted, and its native range is E. Central Tropical Africa to Uganda.

[FTEA]

Dryopteridaceae, JP Roux, M Shaffer-Fehre, B Verdcourt. Flora of Tropical East Africa. 2007

Type
Congo-Kinshasa, Ruwenzori, Humbert 8825 (BM!, holo.)
Morphology General Habit
Terrestrial or epilithic.
Vegetative Multiplication Rhizomes
Rhizome short-decumbent to suberect, up to 15 mm in diameter, with crowded persistent stipe bases, and castaneous to ferrugineous narrowly ovate to lanceolate scales, up to 12 × 4 mm, often with a few scattered glandular cells
Morphology Leaves
Fronds tufted, erect to arching, up to 1.4 m long.
Morphology Leaves Stipes
Stipe proximally castaneous, stramineous higher up, aerophores in larger plants often displayed as paler dorso-lateral lines, up to 72 cm long and 9 mm in diameter, proximally with dense narrowly ovate to lanceolate scales up to 12 × 2.5 mm, denticulate, moderately scaly higher up and variously set with hairs and fugaceous minute membranous scales.
Morphology Leaves Leaf lamina
Lamina firmly herbaceous, ovate to triangular, up to 640 × 540 mm, 2-pinnatepinnatifid to 3-pinnate.
Morphology Leaves Rachis
Rachis stramineous, narrowly winged near apex, with fugaceous hairs and scales up to 5 × 1 mm.
Morphology Leaves Pinnae
Pinnae in up to 5 stalked pairs, basal pair conspicuously basiscopically developed, inaequilaterally narrowly ovate to triangular, basal pair longest, up to 310 × 125 mm, with up to 2 stalked pinnule pairs; pinnarachis narrowly winged distally, abaxially with stramineous scales.
Morphology Leaves Pinnules
Pinnules progressively more broadly attached and basiscopically decurrent towards apex, lanceolate to oblong-acuminate, pinnatifid to deeply lobed, acroscopic pinnule on basal pinna up to 51 × 20 mm, basiscopic pinnule on basal pinna up to 88 × 26 mm; costa narrowly winged along entire length, scales up to 1.5 × 0.8 mm; segments closely spaced but not imbricate, oblong-obtuse to oblong-truncate, up to 16 × 9 mm, shallowly and inconspicuously lobed, lobe apices conspicuously and acutely dentate, adaxially glabrous or with a few hairs and hair-like scales along costule, abaxially variously set with subulate scales and hairs to 0.7 mm long along veins
Morphology Reproductive morphology Sori
Sori circular, medial to inframedial, predominantly on anadromous vein branches, discrete, up to 1.5 mm in diameter at maturity, essentially 2-seriate on segments; sporangium stalk simple or haired; exindusiate
Morphology Reproductive morphology Spores
Spores without ridges, echinate, 36–54 × 22–34 µm
Figures
Figure 14
Ecology
Moist forest with Podocarpus, bamboo and giant heath zone; 1800–3550 m
Conservation
Distribution restricted, least concern (LC)
Distribution
Flora districts: U2 Range: Endemic to the Ruwenzori; Rwanda and Congo-Kinshasa

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[FTEA]
Use
None recorded for our area

Native to:

Rwanda, Uganda, Zaïre

Dryopteris ruwenzoriensis C.Chr. ex Fraser-Jenk. appears in other Kew resources:

First published in Bull. Brit. Mus. (Nat. Hist.), Bot. 14: 204 (1986)

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.

Literature

Flora of Tropical East Africa

  • Bull. Brit. Nat. Hist. Mus., Bot. 14: 204, fig. 4 (1986).

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