Compilation
Arthropteris monocarpa

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Name

Identification
Arthropteris monocarpa (Cordem.) C.Chr. [family TECTARIACEAE ] (stored under name); Verified by Burrows, J.E.,
Related name
  • Arthropteris monocarpa
  • Nephrodium monocarpum
  • `
  • Arthropteris anniana
  • Aspidium monosorum

Flora

Entry for ARTHROPTERIS monocarpa (Cordem.) C. Chr. [family OLEANDRACEAE]
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora of Tropical East Africa
Resource Type
Reference Sources
Entry From
Flora of Tropical East Africa, page 1, (2001) Author: B Verdcourt, B.Sc., Ph.D.
Names
ARTHROPTERIS monocarpa (Cordem.) C. Chr. [family OLEANDRACEAE], in Acad. Malgache, Cat. Pl. Madag., Ptérid.: 32 (1932); Tardieu in Mém. I.F.A.N. 28: 160, t. 7/8–10 (1953) & Fl. Madag. 5 (1): 55 (1958); Alston, Ferns W.T.A.: 52 (1959); Tardieu, Fl. Cameroun 3, Ptérid.: 117, t. 11/8–10 (1964); Schelpe, F.Z., Pterid.: 163, t. 50 (1970) & Expl. Hydrobiol. Bassin L. Bangweolo & Luapula, 8 (3) Ptérid.: 70 (1973); Faden in U.K.W.F.: 44 (1974); Schelpe, C.F.A., Pterid.: 129, t. 23 (1977); Kornaś, Distr. Ecol. Pterid. Zambia: 113, fig. 77a (1979); Schlepe & M.A. Diniz, Fl. Moçamb., Pterid.: 169 (1979); W. Jacobsen, Ferns S. Afr.: 324, fig. 236, map 103 (1983); Pic. Serm. in B.J.B.B. 55: 188 (1985); Schelpe & N.C. Anthony, F.S.A., Pterid.: 170, fig. 53/2, map 146 (1986); J.E. Burrows, S. Afr. Ferns: 207, t. 34/2, fig. 47/210 (1990); Faden in U.K.W.F. ed. 2: 25 (1994). Type: a specimen labelled “ Aspidium monosorum Desv. ined. crescit in insula Borboniae”, Herb. Desvaux (P, neo.), selected by Pichi Sermolli in Webbia 33: 130 (1978)
Nephrodium monocarpum Cordem. [family DRYOPTERIDACEAE], in Bull. Soc. Sci. Île Réunion 1890–91: 186 (1891) & in Fl. Ile Réunion: 74 (1895)
Dryopteris orientalis [family DRYOPTERIDACEAE], [sensu auctt. e.g. Sim, Ferns S. Afr.: t. 9 (1915), non (G.F. Gmel.) C. Chr.]
Arthropteris anniana Lawalrée [family OLEANDRACEAE], in B.J.B.B. 60: 319 (1990). Type: Rwanda, Butare–Bukavu, Antun-Gupffert 933 (BR, holo., K!, MO, P, iso.)
Information
Epiphytic and on rocks. Rhizome ± 2 mm in diameter when dry, widely creeping, with widely spaced fronds and with subcircular to broadly ovate peltate brown entire rhizome-scales up to 1.5 mm long. Frond arching, thinly herbaceous; stipe up to 18 cm long, articulated near the base, pale brown, glabrous at maturity; lamina deeply 2-pinnatifid, up to 33 cm long and 12 cm wide, oblong-lanceolate, acute, the basal pinnae somewhat reduced; rhachis stramineous, green tinged blue-black or purplish; pinnae up to 7.5 cm long, 1.5 cm wide, oblong-lanceolate, attenuate, apex acuminate, very broadly oblong at the base, deeply pinnatifid into narrowly oblong obtuse undulate crenate lobes up to 1 cm long, 0.3 cm wide, very thinly pubescent on the costa, costules and veins beneath; rhachis with minute pale brown hairs. Sori usually solitary in each lobe but if 2–3 then occurring along the acroscopic margin of each lobe, circular, up to 1.5 mm in diameter; indusium ± 1 mm in diameter, membranous, entire. Fig. 2.
Range
DISTR. U 1–3; K 3–5; T 3, 6–8 widespread in tropical Africa from Nigeria, Sudan and Ethiopia to Angola and South Africa (KwaZulu-Natal), Madagascar, Comoro Is. and Réunion
Altitude range
1250–2450 m
Distribution
UGANDA Karamoja District Napak, 28 May 1940, A.S. Thomas 3649!KENYA Fort Hall District Kimakia Forest Station, 7 Apr. 1958, Napper 717!TANZANIA Lushoto District Mbalamu [Mbarama], Mar. 1893, Holst 2511!UGANDA Toro District Ruwenzori, Oct. 1929, Liebenberg 879!UGANDA Mbale District Bugishu, Bulago, 28 Aug. 1932, A.S. Thomas 349!KENYA Embu District Castle Forest Station, 19 Dec. 1972, Gillett & Holttum 20096!KENYA Kericho District SW Mau Forest, along Kiptiget R., 16 km SSE of Kericho, 12 June 1972, Faden et al. 72/343!TANZANIA Kilosa District Ukaguru Mts, Mamiwa Forest Reserve, 1 km from Mandege Forest Station on the Kilosa road, 10 Aug. 1972, Mabberley 1437!TANZANIA Mbeya District Kiwira R., Middle Fishing Camp, 26 Jan. 1963, Richards 17605!TANZANIA Iringa District Mufindi, Luisenga R., 16 Mar. 1962, Polhill & Paulo 1782!
Notes
Cordemoy gave no information about collector in either reference. Pichi Sermolli chose a neotype after an intensive search for authentic material. Eight years later, without any explanation, Schelpe & Anthony gave the type as “Réunion, Boivin 881 (P, holo.)”. The only Réunion specimen I have seen is a duplicate of Boivin 881 (BM!) and study of it has not convinced me that the name A. monocarpa should be restricted to populations from Réunion as suggested by Lawalrée in B.J.B.B. 60: 319 (1990).

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