Compilation
Pteris incisa

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Name

Identification
Pteris incisa Thunb. [family HYPOLEPIDACEAE ] Verified by Wikström, J.E., Pteris not on sheet Not on sheet [family HYPOLEPIDACEAE ] Verified by Montin, L.J., Isotype of Pteris incisa Thunb. [family HYPOLEPIDACEAE ] (stored under name); Verified by Swartz, O.P.,
Related name
  • Pteris not on sheet
  • Pteris incisa

Flora

Entry for HISTIOPTERIS incisa (Thunb.) J. Sm. [family DENNSTAEDTIACEAE]
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, (1999) Author: B. Verdcourt, B.Sc., Ph.D.
Names
HISTIOPTERIS incisa (Thunb.) J. Sm. [family DENNSTAEDTIACEAE], Hist. Fil.: 295 (1875); Hieron. in E.J. 28: 346 (1900); V.E. 2: 47, fig. 41 (1908); Sim, Ferns S. Afr., ed. 2: 263, t. 133 (1915); F.D.-O.A.: 48 (1929); Tardieu in Mém. I.F.A.N. 28: 67 (1953) & Fl. Madag. 5 (1): 68 (1958); Alston, Ferns W.T.A.: 34 (1959); Tardieu, Fl. Cameroun 3, Ptérid.: 98, t. 12/1–2 (1964) & Fl. Gabon 8, Ptérid.: 72, t. 12/1–2 (1964); Schelpe, F.Z., Pterid.: 84, t. 24 (1970) & in Expl. Hydrobiol. Bassin L. Bangweolo & Luapula, 8(3), Ptérid.: 45, fig. 15 (1973); Faden in U.K.W.F.: 30 (1974); Schelpe, C.F.A., Pterid.: 70, t. 10 (1977); Kornaś, Distr. Ecol. Pterid. Zambia: 84, map 52a (1979); W. Jacobsen, Ferns S. Afr.: 206, fig. 145, map 43 (1983); Pic. Serm. in B.J.B.B. 53: 261 (1983) & 55: 201 (1985); Schelpe & N.C. Anthony, F.S.A., Pterid.: 82, fig. 21/3, map 66 (1986); J.E. Burrows, S. Afr. Ferns: 103, t. 16/1, fig. 23/104, map (1990); Kramer in Kubitzki et al., Fam. Gen. Vasc. Pl. 1: 89, fig 37/d–e (1990); Faden in U.K.W.F., ed. 2: 24 (1994). Type: South Africa, Cape Province, Grootvadersbosch, Thunberg (UPS, holo.)
Pteris incisa Thunb. [family ], Prodr. Fl. Cap.: 171 (1800); Baker in Hook. & Baker, Syn. Fil.: 172 (1868)
Information
Rhizome ± 5 mm in diameter, subterranean, with widely spaced fronds and a dense felt of brown multicellular hairs and/or scales (see Burrows p. 103). Fronds erect to arching with pinnae held horizontally, 0.6–2 m (occasionally 3 m) tall; stipe purplish brown or chestnut brown, up to 60 cm long, glabrous; lamina up to 40 cm long and 19 cm wide, pinnatifid to 2-pinnatifid, broadly lanceolate to ovate-triangular in outline, acute, and with basal pinna segments auriculate and developed very close to the rachis; ultimate lobes oblong, acute to obtuse, adnate, entire to sinuate, glaucous when young; rachis reddish-brown to pale brown nearer apex, terete, glabrous. Sori up to 1 mm broad at maturity, linear or rarely lunulate, borne along the margins of the ultimate lobes save at apices to lobes and sinuses; indusium membranous, entire. Fig. 6.
Range
DISTR. U 2, 4; K 4; T 1, 2, 6, 7 very widespread in tropical and South Africa, pantropical and extending to S temperate and subantarctic islands
Altitude range
1100–3450 m
Distribution
UGANDA Toro District Ruwenzori, Bujuku Valley, Aug. 1931, Fishlock & Hancock 138!;KENYA South Nyeri District Aberdare Mts, Kiandongoro Track above Tucha, at crossing of small tributary of R. Chania, 24 Oct. 1971, R.B. & A.J. Faden 71/882! & Aberdare Mts, Ramsden ! & Mt Kenya, Castle Forest Station to Kamweti Track, 25 Jan. 1969, Faden 69/085!TANZANIA Bukoba District Bukoba, Aug. 1931, Haarer 2196!;UGANDA Kigezi District Mt Mgahinga, 24 Aug. 1938, A.S. Thomas 2474!;UGANDA Masaka District Sese Is., Bubekke, 4 July 1935, A.S. Thomas 1380!TANZANIA Moshi District Kilimanjaro, S slope between Umbwe and Weru Weru Rs., 30 Aug. 1932, Greenway 3171!;TANZANIA Morogoro District Uluguru Mts, Tanana, Bruce 76!;TANZANIA Iringa District Sao Hill, June 1958, Watermeyer 27!
Notes
Populations on Tristan da Cunha and Gough Is. have been referred to H. incisa var. carmichaeliana (J. Agardh) C. Chr. Further synonymy is provided by Schelpe (1970).

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