Compilation
Polypodium mannianum
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Name
Identification
Polypodium mannianum Hook. [family POLYPODIACEAE ] Verified by Not on sheet., Dryopteris manniana (Hook.) C.Chr. [family DRYOPTERIDACEAE ] (stored under name); Verified by Not on sheet.,
Related name
- Phegopteris manniana
- Polypodium mannianum
- Dryopteris manniana
Flora
Entry for Dryopteris manniana (Hook.) C.Chr. [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
Dryopteris manniana (Hook.) C.Chr. [family DRYOPTERIDACEAE], Ind. filic.: 276 (1905); Tardieu in Mém. I.F.A.N. 28: 149, t. 29/4–5 (1950); Alston, Ferns W.T.A.: 70 (1959); Schelpe, F.Z., Pterid.: 223, t. 63 (1970); Schelpe & Diniz, Fl. Moçamb., Pterid.: 240 (1979); Jacobsen, Ferns S. Afr.: 440, t. 331, map 161 (1983); Pichi Sermolli in B.J.B.B. 55: 163 (1985); Burrows, S. Afr. Ferns: 303, t. 50/6, fig. 70/307, map (1990); Faden in U.K.W.F.: 36 (1994); J.P. Roux, Conspect. southern Afr. Pterid.: 125 (2001). Type: Bioko [Fernando Po], on the peak, 2000 ft, 1860, Mann s.n. (K!, holo.)
Polypodium mannianum Hook. [family POLYPODIACEAE], Sp. Fil. 4: 253 (1862)
Phegopteris manniana (Hook.) Kuhn [family THELYPTERIDACEAE], Fil. Afr.: 123 (1868)
Information
Terrestrial; rhizome erect to short-decumbent, mostly unbranched, to 8 mm in diameter, with closely spaced stipe bases and brown to ferrugineous subulate scales to 22≈3 mm, closely set with short teeth. Fronds tufted, 4–7 per plant, arching, to 1 m long; stipegreenish to stramineous, up to 48 cm long and up to 5 mm in diameter, proximally densely scaly, higher up moderately scaly, scales stramineous to ferrugineous, up to 15≈4.5 mm, basally frequently with filiform outgrowths, often with scattered glandular cells, denticulate; laminaherbaceous, ovate, up to 53 cm long, to 2-pinnate-pinnatifid, proliferous, generally with one or more scaly buds adaxially along rachis near lamina apex; rachisgreenish to stramineous, narrowly winged towards apex, with ferrugineous to stramineous filiform to lanceolate scales up to 7≈1.8 mm, denticulate, basally with filiform outgrowths, higher up closely set with short teeth; pinnaein up to 12 stalked pairs, basal pinna pair mostly longest, inaequilaterally ovate, narrowly ovate to oblong-acuminate towards lamina apex, basiscopically developed, up to 250≈95 mm, with up to 3 stalked pinnule pairs; pinna-rachisnarrowly winged for most of length, abaxially with sparse to moderate stramineous to ferrugineous filiform to narrowly oblong scales up to 5≈1 mm; pinnulessymmetric or inaequilaterally narrowly ovate to ovate, basiscopically decurrent, pinnatifid, often basiscopically developed, acroscopic pinnule on basal pinnae up to 50≈17 mm, basiscopic pinnule on basal pinnae up to 56≈23 mm, lobes broadly oblong-obtuse, shallowly lobed, dentate, glabrous adaxially, abaxially sparsely set with hairs and scales up to 2 mm long along veins. Soriinframedial on vein branches, discrete at maturity, circular, to 1.5 mm in diameter; sporangiumstalk simple or haired; exindusiate. Spores with short and long ridges, ruminate, 40–58≈26–32 mm. Fig. 13: 3.
Range
DISTR. U 2; K 4, 5, 7; T 3, 5–7
Altitude range
(1000–)1450–1850(–2250) m
Distribution
KENYA Meru District Nyambeni Hills, 1.5 km N of Maua on Maua–Kangeta road, 31 May 1969, Faden et. al. 69/650!KENYA Kericho District Itari River, Sept. 1949, H.D. van Someren 291!KENYA Teita District Mbololo Hill, Mraru Ridge, 5 July 1969, Faden et al. 69/8241!TANZANIA Lushoto District Shume-Magamba Forest Reserve, 2 May 1987, Kisena 620!TANZANIA Kilosa District Ukaguru Mts, Mamiwa Forest Reserve, 1 km N of Mandege Forest Station, 8 Aug. 1972, Mabberley 1415!TANZANIA Iringa District Mwanihana Forest Reserve above Sanje village, 10 Oct. 1984, D.W. Thomas 3802!UGANDA Ankole District Igara County, sawmill W of Rubuzigye in Kalinzu forest, 19 Sept. 1969, Faden 69/1171!UGANDA Bushenyi, Kasyoha-Kitomi Forest Reserve, 16 Nov. 1994, Poulsen 717!UGANDA Kigezi District Bwindi National Park, North Sector (Kayonza), near Ishasha River, 22 March 1995, Poulsen 806!
Distribution (external)
Sierra Leone
Liberia
Ivory Coast
Nigeria
Bioko
Cameroon
Malawi
Mozambique
Zimbabwe
Madagascar
Notes
USES. None recorded for our area. CONSERVATION Widespread; least concern (LC). Vida, in Helv. Chim. Acta 56: 2130 (1973) reports the species as tetraploid: 2n = ± 164.