Compilation
Didymochlaena microphylla

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Name

Identification
Didymochlaena trunculata Bonap. [family DRYOPTERIDACEAE ] Didymochlaena microphylla (Bonap.) C.Chr. [family DRYOPTERIDACEAE ] (stored under name);
Related name
  • Didymochlaena truncatula
  • Didymochlaena trunculata
  • Didymochlaena microphylla

Flora

Entry for Didymochlaena truncatula (Sw.) J.Sm. [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
Didymochlaena truncatula (Sw.) J.Sm. [family DRYOPTERIDACEAE], in Hook., Lond. Journ. Bot. 4: 196 (1841); V.E. 2: 14, fig. 9 (1908); Tardieu, Fl. Madag. 5 (1): 304 (1958); Alston, Ferns W.T.A.: 69 (1959); Tard., Fl. Cameroun 3: 254, t. 38/68 (1964); Schelpe, F.Z., Pterid.: 220, t. 64/E (1970); Faden in U.K.W.F.: 45 (1974); Schelpe & Diniz, Fl. Moçamb., Pterid.: 235 (1979); Jacobsen, Ferns S. Afr.: 432, t. 325, map 158 (1983); Pic. Serm. in B.J.B.B. 55: 176 (1985); Schelpe & N.C. Anthony, F.S.A., Pterid.: 243, fig. 83/1, map 211 (1986); Burrows, S. Afr. Ferns: 299, t. 50/3, fig. [304], map (1990); Faden in U.K.W.F. ed. 2: 35 (1994). Type: Java?, Houtt., Nat. Hist. 14: t. 100, fig. 1 (1783) (lecto.)
Adiantum lunulatum Houtt. [family ADIANTACEAE], Nat. Hist. 14: 209, t. 100, fig. 1 (1783), non Burm. f. (1768). Type as for D. truncatula, nom. illeg .
Aspidium truncatulum Sw. [family DRYOPTERIDACEAE], in Journ. Bot. (Schrad.) 1800, 2: 36 (1801)
Didymochlaena lunulata (Houtt.) Desv. [family DRYOPTERIDACEAE], in Mém. Soc. Linn. Paris 6: 282 (1827); Hieron. in E.J. 28: 341 (1900); F.D.O.-A.: 59 (1930), nom. illeg .
Didymochlaena dimidiata Kunze [family DRYOPTERIDACEAE], in Linnaea 18: 122 (1844). Type: South Africa, Gueinzius s.n. (LZ†, holo., K!, iso., L, iso.)
Nephrolepis lunulata (Desv.) Keys. [family OLEANDRACEAE], Pol. Cyath. Herb. Bung.: 40 (1873)
Didymochlaena microphylla [family DRYOPTERIDACEAE], [sensu Tard. in Mém. I.F.A.N. 28: 153 (1953), non (Bonap.) Christensen]
Information
Terrestrial; rhizome up to 2.5 cm in diameter, erect, forming a short woody caudex up to 20 cm high and 15 cm in diameter with attenuate subentire pale to dark brown rhizome-scales up to 2≈0.1 cm with a few filamentous marginal outgrowths. Fronds tufted, 0.7–2.1 m tall but up to 3.6 m long, arching, firmly herbaceous; stipe stramineous, up to 50 cm tall, grooved, set with a mixture of narrowly ovate to linear-lanceolate brown scales up to 3≈0.4 cm; lamina up to 147≈48 cm, oblong-ovate, 2-pinnate, not reduced at the base; pinnae in about 20–40 pairs up to 25≈4 cm, very narrowly oblong, acuminate, pinnatifid into up to 35(–40) pairs of dimidiate oblong-rhombic petiolate pinnules up to 2.5≈1 cm, the basiscopic margin entire, thickened, with between 1–5 septate, ± stiff bristles (1(–1.7)–2 cm long), the acroscopic margin crenate (fertile pinnules) to serrate (sterile pinnules), glabrous on both surfaces at maturity; rachis and secondary rachises stramineous with persistent pale-brown scales similar (but shorter) to those on the stipe. Sori 1–11 per pinnule, borne in a slight depression nearer the acroscopic margin than the midrib, ± massive, broadly elliptic, up to 2.5≈2 mm; indusium dark-brown with a paler border, with a very narrow elongate stalk, broadly elliptic, up to 3.5≈2 mm, entire. Fig. 8.
Range
DISTR. U 2–4; K 4–7; T 2–4, 6–8 Bioko, São Tomé and Cameroon to Congo-Kinshasa, Burundi, Rwanda, Ethiopia, Angola, Malawi, Mozambique, Zimbabwe, South Africa; pantropical
Altitude range
1000–2250 m
Distribution
KENYA North Kavirondo District 8 km E of Kakamega Forest Station, 18 Sept. 1949, Maas Geesteranus 6292!KENYA Kericho District 5 km E of Kericho, along R. Timbilil, 11 June 1972, Faden et al. 72/310!KENYA Teita District Kasigau Mt, 1 June 1969, Gillett 18764!TANZANIA Mbulu District Marang Forest, 16 June 1967, Vesey-Fitzgerald 5282!TANZANIA Mpanda District Mahali Mts, Sisaga, 29 Aug. 1958, Newbould & Jefford 1934!TANZANIA Iringa District Mufindi, Kigogo R., 23 Mar. 1962, Polhill & Paulo 1841!UGANDA Ankole District Kasyoha-Kitomi Forest, NE of Kyambura R., 7 June 1994, Poulsen et al. 536!UGANDA Kigezi District Ishasha Gorge, 5 Aug. 1971, Katende 1269!UGANDA Elgon, near R. Nametaba, 28 Oct. 1916, Snowden 491!
Notes
USES. None recorded for our area. CONSERVATION Widespread; least concern (LC). Tardieu-Blot has a var. attenuata from E Madagascar.

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