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This species is accepted, and its native range is Tropical Africa.

[FWTA]

Thelypteridaceae, A. H. G. Alston. Flora of West Tropical Africa. Ferns and Fern-Allies Supplement. 1959

Ecology
Up to about 4, 000 ft. alt.

[FTEA]

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

Type
Type: Nigeria, Onitsha, Barter 571 (K!, holo.)
Vegetative Multiplication Rhizomes
Rhizome erect or short-creeping with brown lanceolate scales 2–6 mm long
Morphology Leaves
Fronds tufted, 0.3–1.5 m tall
Morphology Leaves Stipes
Stipe straw-coloured, 15–60 cm long
Morphology Leaves Leaf lamina
Lamina ellipticlanceolate, 23–70 cm long, 10–25 cm wide, with 2–3(–11) pairs of lower pinnae reduced with lowest 2.5 cm long, but sometimes little reduced; largest pinnae narrowly oblong, 5–16 cm long, 1–1.8 cm wide, acuminate, pinnatifid into oblong lobes, 5–10 mm long, 2–4 mm wide, falcate, with hairs and short capitate hairs on both surfaces; veins 8–10 pairs, typically free but in E Africa often with many anastomosing basal veins
Morphology Reproductive morphology Sori Indusium
Indusia with numerous glandular hairs and sometimes a few acicular hairs but glands usually outnumbering the hairs, or if not, then indusium much rounder and larger than in next species.
Ecology
By streams in evergreen forest and rocky ground in gorge near waterfall, Brachstegia–Uapaca woodland; 1000–2100 m
Note
The Balbo specimen was annotated by Faden as Cyclosorus dentatus in 1970 but Holttum in 1973 determined it as probably Christella microbasis. Faden (U.K.W.F. ed. 2: 31 (1994)) said the record of C. microbasis in Kenya by Holttum 1974 is apparently erroneous but the record is clearly based on the Balbo specimen. Bigger 2138 (Kilimanjaro, Lemosho R., 18 Aug. 1968) & 2327 (Kilimanjaro, Himo R., 17 Nov. 1968) have equal numbers of hairs and glands on the indusia which are larger and more regularly round than in C. friesii and the rhizome appears erect but there are up to 11 pairs of reduced pinnae. The relationships of these two taxa need investigation.
Distribution
Flora districts: K4 T2 T8 Range: Sierra Leone, Mali, Guinea, Liberia, Ivory Coast, Ghana, Benin, Nigeria, Cameroon, Sudan, Angola, South Africa (Transvaal)

Native to:

Angola, Benin, Cameroon, Ghana, Guinea, Ivory Coast, Kenya, Liberia, Nigeria, Senegal, Sierra Leone, Sudan, Tanzania

Thelypteris microbasis (Baker) Tardieu appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Mar 1, 1955 Barter [571], Nigeria K000435804 Unknown type material

First published in Notul. Syst. (Paris) 14: 344 (1953)

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 Christella microbasis.]

Literature

Flora of West Tropical Africa

  • in Mém. I.F.A.N. 28 : 117, t. 20, fig. 1 (1953).

Flora of Tropical East Africa
Flora of Tropical East Africa
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Flora of West Tropical Africa
Flora of West Tropical Africa
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Herbarium Catalogue Specimens
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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