Compilation
Polypodium dichotomum

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Name

Identification
Grammitis subfasciata (Rosenst.) Copel. [family GRAMMITIDACEAE ] (stored under name); Polypodium dichotomum Brause [family POLYPODIACEAE ]
Related name
  • Acrostichum furcatum
  • Polypodium dichotomum
  • Mertensia furcata
  • Polypodium furcatum
  • Grammitis subfasciata

Flora

Entry for DICRANOPTERIS linearis var. linearis [family GLEICHENIACEAE]
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, (2000) Author: B. Verdcourt, B.Sc., Ph.D.
Names
DICRANOPTERIS linearis var. linearis [family GLEICHENIACEAE], ; Holttum in Fl. Males., ser. II, 1: 33, fig. 12a, 14g, 16 (1959); Kornaś, Distr. Ecol. Pterid. Zambia: 74, map 44a (1979); Pic. Serm. in B.J.B.B. 53: 196 (1983)
Polypodium lineare Burm. f. [family POLYPODIACEAE], Fl. Indica: 235, t. 67/2 (1768)
Polypodium dichotomum Thunb. [family POLYPODIACEAE], Fl. Japonica: 338, t. 37 (1784). Type: Japan, Kosido Mts, near Nagasaki and elsewhere, Thunberg (UPS, holo.)
Gleichenia dichotoma (Thunb.) Hook. [family GLEICHENIACEAE], Sp. Fil. 1: 12 (1844); Sims, Ferns S. Afr.: 45, t. 3 (1892); F.D.-O.A.: 19 (1929)
Gleichenia linearis (Burm. f.) C.B. Clarke [family GLEICHENIACEAE], in Trans. Linn. Soc., Bot. 1: 428 (1880); Hieron. in P.O.A. C: 88 (1895) & in E.J. 28: 348 (1900) & in V.E. 2: 62 (1908); Brause in Z.A.E.: 36 (1914); Sim, Ferns S. Afr., ed. 2: 299, t. 158 (1915); Alston, Ferns W.T.A.: 22, fig. 4 (1959); Tardieu, Fl. Gabon 8, Ptérid.: 49, t. 6/7–10 (1964) & Fl. Cameroun 3, Ptérid.: 60, t. 5/7–10 (1964)
Mertensia linearis (Burm. f.) Fritsch [family ], in Bull. Herb. Boiss., sér 2, 1: 1092 (1901)
Information
Accessory branches not always present at ultimate forks; branches at each fork of a lateral branch system approximately equal; lateral branch systems forked 1–3 times; costules less than 5 mm apart, their lower surfaces with some persistent hairs; hairs not persistent on lower surface of veins.
Range
DISTR. U 2, 4; K ?1, 3, 4, 7; T 2, 3, 6, 7; Z; P; Réunion and Asia to Australasia and Polynesia
Altitude range
900–2600 m and also coastal, down to 9 m on Z, P and T 6 (Mafia I.)
Distribution
UGANDA Kigezi District Bufumbira, Nyamagana, June 1951, Purseglove 3694!;KENYA Naivasha District Njorowa Gorge, “Hells Gate”, 14 Dec. 1952, Verdcourt 850!;TANZANIA Tanga District E Usambara Mts, Mlinga Mt, Feb. 1917, Peter 19981!;UGANDA Masaka District Sese Is., Bugala I., 3 June 1932, A.S. Thomas 41! & Sozi, Dec. 1922, Maitland 434!KENYA Meru District Nyambeni Hills, 21 km on Maua–Mikinduri Road, 2 June 1969, Faden, Evans & Worth 69/707!;KENYA Teita District Taita Hills, Ronge–Mwambirwa road, on way to Mbololo Hill, 5 July 1969, Faden, Evans & Wolf 69/817!TANZANIA Kilosa District Ukaguru Forest, Project Office, 14 Feb. 1984, Mtui 157!;TANZANIA Iringa District Mufindi, Luisenga R., 15 Mar. 1962, Polhill & Paulo 1772!;TANZANIA Zanzibar Masingini Ridge, 1 Feb. 1929, Greenway 1286!
Distribution (external)
Sierra Leone
Liberia
Ivory Coast
Ghana
Nigeria
Cameroon
Bioko
Principe
São Tomé
Gabon
Central African Republic
Congo (Kinshasa)
Rwanda
Ethiopia
Angola
Zambia
Malawi
Mozambique
Zimbabwe
South Africa
Madagascar
Comoro Is
Seychelles
Mauritius
Notes
A very variable species of which Holttum (Fl. Males, ser. II, 1: 33 (1959)) recognises 13 varieties in Malesia. In Fl. Males. ser. II, 1: 34 (1959), Holttum states ‘Type: Ceylon, Herb. Delessert (G)’; N.L. Burman cited Burm. Zeyl. 92 and Linn Fl. Zeyl. 201. The latter refers to a Herman specimen from Ceylon, now in the BM. I am accepting Schelpe and Anthony’s citation of the specimen at G as holotype to be a lectotypification. Holttum’s statement obviously refers to both.

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