Pteris burtonii Bak.

Abotsi, Komla Elikplim, Radji, Aboudou R., Rouhan, Germinal, Dubuisson, Jean-Yves & Kokou, Kouami, 2015, The Pteridaceae family diversity in Togo, Biodiversity Data Journal 3, pp. 5078-5078 : 5078

Pteris burtonii Bak.

Pteris johnstonii Bak, P. aethiopica Christ, P. atrovirens var. cervonii Bonap, P. burtonii var. aethiopica (Christ) Tardieu.

Materials

Type status: Other material. Occurrence: catalogNumber: 12069 ; recordNumber: 1371bis; recordedBy: K. Akpagana; lifeStage: Adult; reproductiveCondition: Fertile; Taxon: nameAccordingToID: The Plant List; scientificName: Pterisburtonii Baker; kingdom: Plantae; phylum: Monilophyta; class: Polypodiidae; order: Polypodiales; family: Pteridaceae; genus: Pteris; specificEpithet: burtoni; taxonRank: species; scientificNameAuthorship: Baker.; Location: continent: Africa; country: Togo; stateProvince: Plateaux; decimalLatitude: 7; decimalLongitude: 0.75; geodeticDatum: WGS 1984; Identification: identifiedBy: K. Akpagana; dateIdentified: /2/1987; Event: eventDate: /2/1987; Record Level: institutionID: Herbarium togoense; collectionID: TOGO

Type status: Other material. Occurrence: catalogNumber: 12070 ; recordNumber: 2427; recordedBy: K. Akpagana; lifeStage: Adult; reproductiveCondition: Fertile; Taxon: nameAccordingToID: The Plant List; scientificName: Pterisburtonii Baker; kingdom: Plantae; phylum: Monilophyta; class: Polypodiidae; order: Polypodiales; family: Pteridaceae; genus: Pteris; specificEpithet: burtoni; taxonRank: species; scientificNameAuthorship: Baker.; Location: continent: Africa; country: Togo; stateProvince: Centrale; decimalLatitude: 9.25; decimalLongitude: 1.2; geodeticDatum: WGS 1984; Identification: identifiedBy: K. Akpagana; dateIdentified: 1993; Event: eventDate: 1993; Record Level: institutionID: Herbarium togoense; collectionID: TOGO

Type status: Other material. Occurrence: catalogNumber: 12072 ; recordNumber: 5591; recordedBy: J.-F. Brunel; lifeStage: Adult; reproductiveCondition: Fertile; Taxon: nameAccordingToID: The Plant List; scientificName: Pterisburtonii Baker; kingdom: Plantae; phylum: Monilophyta; class: Polypodiidae; order: Polypodiales; family: Pteridaceae; genus: Pteris; specificEpithet: burtoni; taxonRank: species; scientificNameAuthorship: Baker.; Location: continent: Africa; country: Togo; stateProvince: Plateaux; decimalLatitude: 7; decimalLongitude: 0.75; geodeticDatum: WGS 1984; Identification: identifiedBy: J.-F. Brunel; Record Level: institutionID: Herbarium togoense; collectionID: TOGO

Type status: Other material. Occurrence: catalogNumber: 30031 ; recordNumber: 16; recordedBy: ABOTSI, SODJINOU & MINGOU; Taxon: nameAccordingToID: The Plant List; scientificName: Pterisburtonii Baker; kingdom: Plantae; phylum: Monilophyta; class: Polypodiidae; order: Polypodiales; family: Pteridaceae; genus: Pteris; specificEpithet: burtonii; taxonRank: species; scientificNameAuthorship: Baker.; Location: continent: Africa; country: Togo; stateProvince: Plateaux; decimalLatitude: 7.51380764; decimalLongitude: 0.59479481; geodeticDatum: WGS 1984; Identification: identifiedBy: K. E. Abotsi; dateIdentified: /05/2013; Event: eventDate: 04-03-13; Record Level: institutionID: Herbarium togoense; collectionID: TOGO

Type status: Other material. Occurrence: catalogNumber: 30032 ; recordNumber: 17; recordedBy: ABOTSI, SODJINOU & MINGOU; Taxon: nameAccordingToID: The Plant List; scientificName: Pterisburtonii Baker; kingdom: Plantae; phylum: Monilophyta; class: Polypodiidae; order: Polypodiales; family: Pteridaceae; genus: Pteris; specificEpithet: burtonii; taxonRank: species; scientificNameAuthorship: Baker.; Location: continent: Africa; country: Togo; stateProvince: Plateaux; decimalLatitude: 7.51380764; decimalLongitude: 0.59479481; geodeticDatum: WGS 1984; Identification: identifiedBy: K. E. Abotsi; dateIdentified: /05/2013; Event: eventDate: 04-03-13; Record Level: institutionID: Herbarium togoense; collectionID: TOGO

Type status: Other material. Occurrence: catalogNumber: 30059 ; recordNumber: 152; recordedBy: ABOTSI, SODJINOU & MINGOU; Taxon: nameAccordingToID: The Plant List; scientificName: Pterisburtonii Baker; kingdom: Plantae; phylum: Monilophyta; class: Polypodiidae; order: Polypodiales; family: Pteridaceae; genus: Pteris; specificEpithet: burtonii; taxonRank: species; scientificNameAuthorship: Baker.; Location: continent: Africa; country: Togo; stateProvince: Plateaux; decimalLatitude: 8.1959055; decimalLongitude: 0.61440464; geodeticDatum: WGS 1984; Identification: identifiedBy: K. E. Abotsi; dateIdentified: /05/2013; Event: eventDate: 05-09-13; Record Level: institutionID: Herbarium togoense; collectionID: TOGO

Type status: Other material. Occurrence: catalogNumber: 30069 ; recordNumber: 174; recordedBy: ABOTSI, SODJINOU & MINGOU; Taxon: nameAccordingToID: The Plant List; scientificName: Pterisburtonii Baker; kingdom: Plantae; phylum: Monilophyta; class: Polypodiidae; order: Polypodiales; family: Pteridaceae; genus: Pteris; specificEpithet: burtonii; taxonRank: species; scientificNameAuthorship: Baker.; Location: continent: Africa; country: Togo; stateProvince: Plateaux; decimalLatitude: 8.01520112; decimalLongitude: 0.63320513; geodeticDatum: WGS 1984; Identification: identifiedBy: K. E. Abotsi; dateIdentified: /05/2013; Event: eventDate: 05-11-13; Record Level: institutionID: Herbarium togoense; collectionID: TOGO

Type status: Other material. Occurrence: catalogNumber: 30109 ; recordNumber: 353; recordedBy: ABOTSI, SODJINOU & MINGOU; Taxon: nameAccordingToID: The Plant List; scientificName: Pterisburtonii Baker; kingdom: Plantae; phylum: Monilophyta; class: Polypodiidae; order: Polypodiales; family: Pteridaceae; genus: Pteris; specificEpithet: burtonii; taxonRank: species; scientificNameAuthorship: Baker.; Location: continent: Africa; country: Togo; stateProvince: Plateaux; decimalLatitude: 6.94840325; decimalLongitude: 0.57909955; geodeticDatum: WGS 1984; Identification: identifiedBy: K. E. Abotsi; dateIdentified: /05/2013; Event: eventDate: 04-15-13; Record Level: institutionID: Herbarium togoense; collectionID: TOGO

Ecological interactions

Native status

Native

Distribution

Togo (Ecological Zones 2, 4 and 5), Guinea, Sierra Leone, Tanzania, Principe Isl., Bioko Isl., Ivory Coast, Liberia, Ghana, Nigeria, Cameroon, Central African Republic, Gabon, Congo, D.R.Congo, Angola, Burundi

Notes

The rhizome of Pteris burtonii is short, erect, covered with black scales, with pale margins, lanceolate to linear-lanceolate (3 to 4 mm long). The fronds are tufted, 0.3 to 1m long (Fig. 15a). The stem measures 10 to 38 cm long and is covered with scales at the base. The leaf blade is deltoid, lanceolate, 20-40 cm long and 15-40 cm wide, with a bud near the base of the terminal pinnae. Each frond has 1-5 pairs of simple pinnae, oblong-lanceolate, entire or slightly lobed, of 6 to 19 cm long and 1.4 to 4 cm wide. The two basal pinnae has a basiscopic spur. The pinnae are often pinnatifid, sometimes simple. Both types of fronds can coexist on the same plant. The terminal segment is deltoid-lanceolate, 3 to 6 (-9) cm long and about 1 cm wide, toothed at the apex. The ultimate pinnae segments are organized into 10-15 pairs, oblong. The basal basiscopic segment of lowest pinnae is longer. The stipe is slightly winged by decurrent leaf base. The ribs are anastomosed at the segments level. The sori are present on all the margin of the pinnae (simple as pinnatifid ones) without interruption in the sinus, but the apex of the ultimate segments is generally sterile and toothed, giving a U-shaped sori (Fig. 15b). Pteris burtonii usually grows on the banks of rivers, waterfalls, cliffs and wet roadsides in forest areas.