Compilation
Pteris calomelanos

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Name

Identification
Pteris calomelanos Sw. [family PTERIDACEAE ] (stored under name); Verified by Not on sheet,
Related name
  • Pellaea calomelanos
  • Adianti hastati
  • Adiantum hastatum
  • Platyloma calomelanos
  • Pteris calomelanos

Flora

Entry for PELLAEA calomelanos var. calomelanos [family ADIANTACEAE]
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, (2002) Author: BERNARD VERDCOURT
Names
PELLAEA calomelanos var. calomelanos [family ADIANTACEAE], ; Schelpe in Contr. Bolus Herb. 1: 80 (1969) & in F.Z., Pterid.: 132 (1970); W. Jacobsen, Ferns S. Afr.: 277, figs. 200a, 200c (1983); J.E. Burrows, S. Afr. Ferns: 176, fig. 42/176, t. 28/4 (1990)
Pteris hastata [family ], sensu Thunb., Prodr.: 172 (1800) & Fl. Cap.: 733 (1823), non L.f.
Pteris calomelanos Sw. [family ], in Schrad. J. Bot. 1800, 2: 70 (1801)
Allosorus calomelanos (Sw.) Presl [family ADIANTACEAE], Tent. Pterid.: 153 (1836)
Platyloma calomelanos (Sw.) J. Sm. [family ADIANTACEAE], in Curtis, Bot. Mag. 72 Comp.: 2 (1846)
Notholaena calomelanos (Sw.) Keys. [family ADIANTACEAE], Pol. Cyath. Herb. Bunge: 29 (1873)
Pteridella hastata [family ADIANTACEAE], sensu Kuhn in von der Decken, Reisen Ost Afr. 3, 3 Bot.: 13 (1879); Hieron. in P.O.A. C: 78 (1895), non (Thunb.) Kuhn
Pellaea hastata [family ADIANTACEAE], sensu Prantl in E.J. 3: 418 (1882); Hieron. in P.O.A. C: 78 (1895) & in VE 2: 38, fig. 31d–e (1908); Sim, Ferns S. Afr. ed. 2: 211, t. 100 (1915); F.D.-O.A.: 37 (1929), non (L.f.) Link
Information
Ultimate pinnules small, not attaining 3 cm long and 4 cm wide.
Range
DISTR. U 1–4; K 1–6; T 1–3, 5, 7, 8
Altitude range
900–2650 m
Distribution
KENYA West Suk District 48 km N of Kitale on Lodwar road, Suk escarpment, Sept. 1959, Tweedie 1906!;KENYA Naivasha District about 32 km from Kikuyu on direct road to Narok down rift via Wanyaga, 20 Jan. 1963, Verdcourt 3567!;KENYA Masai District Ol Donyo Orok [Namanga Mt], 30 Apr. 1972, Archer in EA 15087!TANZANIA Musoma District Seronera to Klein’s Camp, 91 km, 6 Apr. 1961, Greenway & Turner 9993!;TANZANIA Lushoto District W Usambaras, escarpment near Gologolo to Mkumbala path, 4 June 1953, Drummond & Hemsley 2859!;TANZANIA Kondoa District 24 km N of Kondoa Irangi, Apr. 1967, Beesley 267!UGANDA Karamoja District Napak, 27 May 1940, A.S. Thomas 3587!UGANDA Ankole District Rugongo, W village chapel, 19 Dec. 1969, Rwaburindore 225!;UGANDA Mbale District Agule, Bukedi, Mar. 1916, Snowden 281!
Distribution (external)
; Congo (Kinshasa)
Sudan
Ethiopia
Somalia
Angola
Zambia
Malawi
Mozambique
Zimbabwe
Botswana
Namibia
South Africa
Madagascar
Mascarenes
NE Spain
N India
Notes
Milne-Redhead & Taylor 9682 (Tanzania, Songea District, Litenga Hill, 19 Apr. 1956) and B.D. Burtt 1294 (Tanzania, Kondoa District, Irangi Hills, Kolo, 1 Feb. 1928) had been named Pellaea swynnertoniana Sim (Ferns S. Afr. ed. 2: 213, t. 101 (1915). Type: Zimbabwe, Chirinda Forest, Swynnerton 850 (PRE, holo., K!, SRGH iso.)). In this the pinnules are much larger, up to 5.4 long cm, 5.2 cm wide, but there are many intermediates and Schelpe (J. S. Afr. Bot. 30: 187 (1964); F.Z., Pterid.: 133 (1970)) has reduced it to a variety. Typical specimens are striking but the two E African sheets cited above are intermediate with var. calamelanos as are many other specimens from Tanzania. Mixed gatherings with other species of Pellaea are not infrequent e.g. Burtt 908, Richards 19151, etc.

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