Compilation
Polystichum aristatum

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Name

Identification
Isotype of Polystichum amabile Rosenst. [family DRYOPTERIDACEAE ] Polystichum aristatum Rosenst. [family DRYOPTERIDACEAE ] Verified by Ren-Chang Ching, Arachniodes chinensis (Rosenst.) Ching [family DRYOPTERIDACEAE ] (stored under name);
Related name
  • Aspidium mucronatum
  • Aspidium aristatum
  • Arachnoides exile
  • Arachniodes chinensis
  • Dryopteris foliosa
  • Polypodium mucronatum
  • Aspidium cornu-cervi
  • Polystichum amabile
  • Aspidium exile
  • Arachniodes bella
  • Polypodium aristatum
  • Polystichum aristatum
  • Arachniodes aristata
  • Aspidium sporadosorum

Flora

Entry for Arachniodes webbiana (C.Chr) Gibby, Rasbach, Reichstein, Widén & Viane subsp. foliosa [family DRYOPTERIDACEAE]
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, (2007) Author: J.P. Roux, Monika Shaffer-Fehre & Bernard Verdcourt
Names
Arachniodes webbiana (C.Chr) Gibby, Rasbach, Reichstein, Widén & Viane subsp. foliosa [family DRYOPTERIDACEAE], in Bot. Helvet. 102: 243 (1992); J.P. Roux, Consp. S. Afr. Pterid.: 127 (2001). Type: Kenya, Aberdare Mts, Kinangop, Alluaud 255 (BM, holo!)
Polystichum aristatum [family DRYOPTERIDACEAE], [sensu Sim, Ferns S. Afr. ed. 2: 119, t. 30 (1915), non (Forst.) Presl]
Dryopteris foliosa C.Chr. [family DRYOPTERIDACEAE], in Dansk. Bot. Ark. 9 (3): 61 (1937)
Arachniodes foliosa (C.Chr.) Schelpe [family DRYOPTERIDACEAE], in Bol. Soc. Brot. sér. 2, 41: 203 (1967); Schelpe, F.Z., Pterid.: 228, t. 65 (1970); Faden, in U.K.W.F.: 48 (1974); Korna´s, Distr. Ecol. Pterid. Zambia: 106, fig. 70B (1979); W. Jacobsen, Ferns S. Afr.: 450, t. 340, map 167 (1983); Pic. Serm. in B.J.B.B. 55: 175 (1985);’ Schelpe & N.C. Anthony, F.S.A., Pterid.: 259, fig. 89, map 227 (1986); J.E. Burrows, S. Afr. Ferns: 318, t. 53/3, fig. 323, map (1990); Faden in U.K.W.F. ed. 2: 35 (1994). Type: Kenya, Aberdare Mts, Kinangop, Alluaud 255 (BM, holo.!)
Information
Virtually identical in macromorphological characters but tetraploid not diploid and with small but distinct differences in microcharacters including epidermal cells and the scales on undersides of pinnules (see Gibby et al. for details).
Range
DISTR. U 2, 3; K 1 (Mt Nyiro), 3–7; T 2, 3, 6 Rwanda, Malawi, Zimbabwe, South Africa (E Cape Province to Transkei, Natal & Transvaal)
Altitude range
(?1250–)1380–2600(–3130 Elgon) m
Distribution
KENYA Naivasha District Aberdares, S Kinangop, 24 Nov. 1957, Molesworth-Allen 3636!, 3635!KENYA Kiambu District Limuru, Feb. 1915, Dummer 1726!KENYA Teita District Mt Kasigau, path from Rukanga up mountain, 5 Apr. 1969, Faden et al. 69/472!TANGANYIKA Moshi District S Kilimanjaro, Una Stream, 22 Jan. 1934, Schlieben 4619!TANGANYIKA Pare District Gonja, Shengena Forest Reserve, 29 Feb. 1988, Kisena 339!TANGANYIKA Lushoto District W Usambaras, 14 Sept. 1981, Mtui & Sigara 59!TANGANYIKA Morogoro District W slope of Nguru Mts, above Maskati, 17 Mar. 1988, Bidgood et al. 538!UGANDA Kigezi District NW face of Muhavura, Jan. 1933, Eggeling 1049!UGANDA Mt Elgon, Sasa Trail, 28 Dec. 1996, Wesche 481! & W Elgon, Bufumbo, Dec. 1950, H.D. van Someren 417!
Notes
USES. None recorded for our area. CONSERVATION Widespread; least concern (LC). A photograph of the type of Rumohra humbertii Tardieu described from Madagascar looks very similar to A. webbiana subsp. foliosa. A. webbiana subsp webbiana is confined to Madeira.

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