Asplenium hypomelas Kuhn (1868: 104)

Fischer, Eberhard & Lobin, Wolfram, 2023, Synoptic Revision of Aspleniaceae (Asplenium, Hymenasplenium) of Rwanda, Phytotaxa 608 (1), pp. 1-65 : 18

Asplenium hypomelas Kuhn (1868: 104) .

Davallia nigrescens Hooker (1861 : t. 93).

Holotype: — SÃO TOMÉ. G.Mann 448 (K000423923!; isotype B 20 0016164!).

Specimens seen:— Northern Province: Rweru , 24 July 1934, G.F.de Witte 1707 ( BR0000016305861 ) . Western Province: Weg Gisenyi (= Rubavu) – Kibuye (= Karongi ), km 40, Gishwati-woud , 6 February 1972, P. Van der Veken 9285 ( BR0000016306264 ) ; Gishwati-Mukura NP, epiphyte on tree ferns near Park Head Quarter , 4 October 2022, E.Fischer s.n. ( KOBL) ; Wisumo, centre forestier suisse, commune Gisovu, Préfecture Kibuye (= Karongi ), 31 May 1978, G.Troupin 16024 ( BR0000016306257 ) ; Monti au sud-est del lago Kivu a 51 km da Bukavu lungo la strada per Astrida (= Huye ), 15 August 1956, R.Pichi Sermolli 5304 ( BR0000016306233 ) ; Uwinka, près la INRS, Préfecture Cyangugu (= Rusizi ), 2 September 1974, P. Van der Veken 11108 ( BR0000016306271 ) ; Forêt de Nyungwe, environs d’Uwinka, Préfecture Cyangugu (= Rusizi ), 23 January 1971, G.Bouxin 122 ( BR0000016306196 ) ; Forêt de Rugege (= Nyungwe), préf. Cyangugu (= Rusizi ), vallon à Cyathea sous le gîte de l’INRS à Uwinka , 9 August 1974, P.Auquier 3614 ( BR0000016306189 ) ; Shangugu (= Rusizi), route Astrida (= Huye ) – Bukavu , vers km 93, forêt de Rugege près d’Uwinka , 24 September 1956, G.Troupin 2595 ( BR0000016306240 ) .

First recorded for Rwanda: — Pichi Sermolli (1985: 123) as Loxoscaphe nigrescens T. Moore (1861: 297) .

Habitat:—Epiphyte in montane forest, mostly on stems of Alsophila manniana (Hook. in Hooker & Baker 1865: 21) R.M. Tryon (1970: 30), elev. 1900–2500 m.

Distribution in Rwanda:—Northern Province: Rweru. Western Province: Gishwati-Mukura NP, Nyungwe NP.

General distribution: —Africa: Guinea to Ethiopia, southwards to Rep. South Africa (Northern Province).