Asplenium friesiorum Christensen (1924: 181)

Fischer, Eberhard & Lobin, Wolfram, 2023, Synoptic Revision of Aspleniaceae (Asplenium, Hymenasplenium) of Rwanda, Phytotaxa 608 (1), pp. 1-65 : 17-18

publication ID	https://doi.org/10.11646/phytotaxa.608.1.1
DOI	https://doi.org/10.5281/zenodo.8253207
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treatment provided by	Plazi (2023-08-15 09:53:24, last updated 2023-11-09 19:21:32)
scientific name	Asplenium friesiorum Christensen (1924: 181)
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Asplenium friesiorum Christensen (1924: 181) View in CoL ( Fig. 18 E, F, G View FIGURE 18 , Fig. 20 View FIGURE 20 , 21 View FIGURE 21 ).

Holotype: — KENYA. Mt. Kenya , West Kenia Forest Station, 2300 m, 30 December 1921, R.E.& T.C.E.Fries 573 (B 200014940!; isotypes BM000785454!, K000423892!).

Specimens seen:—Northern Province: Lichtungen mit Hypericum - Gebüsch im Bambusmischwald süd̂stl. Karisimbi westl. Kalago-See, 2300 m., November 1907 , Mildbraed 1652 (B 20 0224252, B 20 0224253; N-weg van Ruhengeri (= Musanze ) naar Rwaza, langs rivierdal van de Mukungwa, 23 February 1972 , P. Van der Veken 9483 ( BR0000016303072 ); N Bulera-meer, gemeente Butaro op de N.– oever, 17 February 1972 , P. Van der Veken 9408 ( BR0000016303065 ); Parc des Volcans , ascencion du Sabinyio, partant de Gasiza, Préfecture Ruhengeri (= Musanze), 27 July 1974 , P. Van der Veken 10358 ( BR0000016303089 ); Flanc sud du Volcan Sabyinyo, 15 August 1984 , J.Lejoly 84/376 ( BR0000016302938 ); Flanc sud du Sabyinyo, Préfect. Ruhengeri (= Musanze), 3 February 1972 , P.Bamps 3054 ( BR0000016302792 ); Kinigi , 25 June 1961 , S.C.Antun-Gupffert 1015 ( BR0000016302761 ); Gakenke – Bushati , 15 December 2021 , E.Fischer s.n. ( KOBL). Western Province : Gisenyi ( Rubavu ) – Kibuye (= Karongi ) km 30 commune de Kanama, Préfect. Gisenyi (= Rubavu), 6 February 1972 , P.Bamps 3095 ( BR0000016302808 ); Gikungu , vallée de la Sebeya, Préfecture Gisenyi (= Rubavu), 2 November 1974 , G.Troupin 15508 ( BR0000016303034 ); Rutsiro (préfect. Kibuye = Karongi), 28 July 1974 , J.Lambinon 74/589 ( BR0000016302921 ); Gishwati-Mukura NP, epiphyte near Park Head Quarter , 4 October 2022 , E.Fischer s.n. ( KOBL); Rugege-Wald (Rukarara): Waldboden, nicht selten, 1900 m., August 1907 , Mildbraed 937 (B 20 0056652); Wisumo, centre forestier suisse, commune Gisovu , Préfecture Kibuye (= Karongi), 31 May 1978 , G.Troupin 15999 ( BR0000016303041 ); Gisovu , 22 February 1972 , P.Bamps 3223 ( BR0000016302785 ); Shangugu (= Rusizi ), route Astrida (= Huye ) – Bukavu, vers km 81, marais Kasale, 25 September 1956 , G.Troupin 2645 ( BR0000016303027 ); Forêt de Nyungwe , marais du Kamiranzovu, Préfecture Cyangugu (= Rusizi), 26 January 1971 , G.Bouxin 197 ( BR0000016302853 ); Forêt de Nyungwe , environs d‘Uwinka , Préfecture Cyangugu (= Rusizi), 18 May 1971 , G.Bouxin 787 ( BR0000016302877 ); vers km 67 de la route Astrida (= Huye ) – Shangugu (= Rusizi ), territoire d‘Astrida , Forêt de montagne – Crête Congo-Nil, 9 August 1957 , M.Reynders 189 ( BR0000016303010 ); Astrida (= Huye) – Bukavu km 100, June 1957 , S.C.Antun-Gupffert 910 ( BR0000016302747 ); Astrida (= Huye) – Bukavu km 100, 1961, S.C.Antun-Gupffert 947 ( BR0000016302754 ); environs du lac Kivu , route Nyamasheke – Ntendezi à 10 km de Nyamasheke, Préfecture Cyangugu (= Rusizi), 27 March 1972 , G.Bouxin 1482 ( BR0000016302884 ); Road Pindura – border with Burundi, km 21, 27 July 1974 , J.Rammeloo 4084A ( BR0000016303003 ); Forêt de Nyungwe , région de Uwinka, Préfecture Cyangugu (= Rusizi), 10 August 1969 , G.Bouxin & M.Radoux INRS/571 ( BR0000016302907 ); Forêt de Nyungwe environs du Kamiranzovu, Préfecture Cyangugu (= Rusizi), September 1971 , G.Bouxin 1216 ( BR0000016302891 ); Kamiranjovu (= Kamiranzovu ) – Terr. Shangugu (= Rusizi), 18 March 1956 , A.R.Christiaensen 1408 ( BR0000016302914 ); Forêt de Rugege ( Cyangugu ), Marais du Kamiranzovu , aux env. du km 104 de la route Butare – Cyangugu (= Rusizi), 25 July 1974 , P.Auquier 3428 ( BR0000016302778 ); Territoire de Shangugu (= Rusizi), Forêt de Montagne, 14 February 1958 , G.Michel 5098 ( BR0000016302945 ). Southern Province : Prefecture Gitarama (Muhanga), Ruhango, 4 October 1981 , K.A.Nowak 1063 ( BR 0000016302969); Prefecture Gitarama (= Muhanga), Ruhango , 5 August 1979, K.A.Nowak 542 ( BR0000016302952 ) ; Butare (= Huye), dolina Rusange , 9 May 1984, K.A.Nowak 1972 ( BR0000016302990 ) ; Préfecture de Gikongoro (= Nyamagabe), Commune Muko , Forêt de Kagano-Gisovu , 20 August 1999, C.E.N.Ewango 2210 ( BR0000009698918 ) . Kigali Province: Ganzu, Bois sacré, Kigali, September 1933, A.Becquet 785 ( BR0000016302839 ) .

First recorded for Rwanda: — Brause & Hieronymus (1910: 16) as Asplenium decrescens auct. non Kunze (1851: 261).

Habitat: —Terrestrial in montane forests, swamps, road banks, elev. 1900–2800 m.

Distribution in Rwanda:—Northern Province: Volcano NP, Gakenke-Bushati. Western Province: Gishwati-Mukura NP, Nyungwe NP. Southern Province: Muhanga, Huye, Nyungwe NP, Gisovu. Kigali Province: Kigali.

General distribution: —Africa: Guinea to Ethiopia, southwards to Rep. South Africa, Madagascar. Also in Réunion.

Note: —The synonymy in Roux (2009) and Fraser-Jenkins et al. (2017) to the Asian Asplenium gueinzianum Mettenius ex Kuhn (1868: 103) is most likely incorrect (see Viane 2021: 100).

References

Brause, G. & Hieronymus, G. (1910) Polypodiaceae. In: Mildbraed, J. (ed.) Wissenschaftliche Ergebnisse der deutschen Zentral-Afrika Expedition 1907 - 1908 unter Fuhrung Adolf Friedrichs, Herzogs zu Mecklenburg 2. Klinkhardt & Biermann, Leipzig, pp. 2 - 36.

Christensen, C. (1924) Uber die Farne des Kenia und Mt. Aberdare, tropisches Ostafrika. In: Fries, R. E. & Fries, T. C. E. Beitrage zur Kenntnis der Flora des Kenia, Mt. Aberdare und Mt. Elgon. VI. Notizblatt des Botanischen Gartens und Museums zu Berlin-Dahlem 9: 173 - 188. https: // doi. org / 10.2307 / 3994334

Fraser-Jenkins, C. R., Ghandi, K., Kholia, B. & Benniamin, A. (2017) An annotated checklist of Indian Pteridophytes. Part - 1 (Lycopodiaceae to Thelypteridaceae). Bishen Singh Mahendra Pal Singh, Dehra Dun. 562 pp.

Kuhn, M. (1868) Filices Africanae. W. Engelmann, Leipzig. 233 pp.

Kunze, G. (1851) Filices Nilagiricae. Linnaea 24: 239 - 299.

Roux, J. P. (2009) Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands. Strelitzia 23: I - XIV, 296 pp.

Viane, R. L. L. (2021) Aspleniaceae of Madagascar. A revision with annotations from the Mascarenes, the Comoros, TAAF, and continental Africa. University Press Wachtebeke, 247 pp.

Figures

FIGURE 18. A–C: Asplenium ramicola Eb.Fisch. & Lobin, sp. nov. Scales.—A–B. Rhizome scales.—C. Scale on rachis.—D–E: Asplenium friesiorum.—D–E. Rhizome scales. Photographs: E.Fischer & W.Lobin. Asplenium ramicola. From type.—Asplenium friesiorum. E. Fischer s,n. Gakenke. Scale bars: 1 mm.

FIGURE 20. Asplenium friesiorum. Spores.—A-B. Rwasenkoko, E.Fischer s.n..—C. Rwasenkoko, E.Fischer s.n..—D. Gakenke – Bushita, E.Fischer s.n..—E. Pindura – Bweyeye, E.Fischer s.n..—F. Kahuzi Biega, M. Becker 19. Photographs: E.Fischer, W.Lobin & Y.Malkowsky. Scale bars:A, C. 10 µm; B, D–F. 8 µm.

FIGURE 21. Asplenium friesiorum.—A, E. Habit.—B–D. Pinnae.—F. Rhizome. Photographs: E.Fischer, Cyamudongo. Scale bars:A, E. 10 cm; B–D. 2 cm. F. 1 cm.