Edit History
Asplenium lobatum Pappe & Rawson [family ASPLENIACEAE]
Date Updated: 19 August 2007
Herbarium
South African National Biodiversity Institute, Compton Herbarium, Cape Town (SAM)
Collection
Swaziland ferns and fern allies
Resource Type
Reference Sources
Entry From
Swaziland Ferns and Fern Allies, (2003) Author: J.P. Roux
Names
Asplenium lobatum Pappe & Rawson [family ASPLENIACEAE]
Common names
Asplenium gracile Pappe & Rawson, Syn. fil. Afr. austr.: 22 (1858), non D.Don (1825). Asplenium lunulatum Sw. var. gracile (Pappe & Rawson) Sim, Ferns S. Afr., 2nd edn: 146, pl. 49, t. a, b (1915). Asplenium erectum Bory ex Willd. var. gracile (Pappe & Rawson) Tardieu, Fl. Madag. 5, 1: 222, t. 30, fig. 4, 5 (1958). Type: In the primaeval forests of Natal, Gueinzius s.n. (S, holo.). Asplenium lobatum Pappe & Rawson var. pseudo-abyssinicum N.C.Anthony & Schelpe in Contr. Bolus Herb. 10: 149 (1982); Burrows, Sthn. Afr. Ferns: 240, pl. 39.6, map (1990). Type: Mozambique, Manica & Sofala, Gorongosa Mountain, south-west sector, 4 000 ft, 7/07/1955, Schelpe 5597 (BOL!, holo; B, BM, M, MO, P, PR, PRE, iso.).
lobatum = lobed
Vernacular names: Lobed spleenwort; Kant tralievaring (Afr.)
Information
Plants terrestrial or epilithic. Rhizome erect to suberect, to 20 mm long, to 4 mm in diameter, set with roots, crowded stipe bases and scales, scales chartaceus, atrocastaneus, clathrate, sessile, subulate to narrowly lanceolate, cordate, margins irregularly set with short filiform outgrowths, apex terminates in an oblong thin-walled cell, to 5 mm long, to 0.7 mm wide. Fronds crowded, caespitose, erect to arching, to 475 mm long; stipe firm, castaneus, terete, to 120 mm long, to 1.2 mm in diameter, narrowly green-winged for most of the length, initially moderately set with hairs and scales, subglabrous later, hairs 3-5-celled, clavate, to 0.25 mm long, scales chartaceus, atrocastaneus, clathrate, stalked, subulate to filiform, the larger often with short filiform outgrowths along the margin, apex terminates in an oblong thin-walled cell, to 5 mm long, to 0.7 mm wide; lamina anadromous, 2-pinnate, narrowly elliptic, to 360 mm long, to 85 mm wide, with up to 23 petiolated pinna pairs; rachis firm, castaneus, green towards the apex, terete, narrowly green-winged, sparsely set with hairs and scales similar to those on the stipe, glabrous later; pinnae petiolate, petiole to 1 mm long, opposite to alternate, basally more widely spaced than apically, pinnae in the lower half gradually reduced, ovate to narrowly ovate, to 45 mm long, to 16 mm wide, with up to 5 pinnule pairs; pinna-rachis terete, narrowly winged, glabrous; pinnules herbaceous, sessile, rhombic to flabellate, coarsely serrate or divided into 2-fid or 3-fid lobes, lobe apices entire or shallowly repand to erose, to 12 mm long, to 10 mm wide, glabrous adaxially and abaxially. Venation anadromous, evident, flabellately forked, ending in the teeth near the margin. Sori linear, usually on the terminal vein branches, but often also at a fork, to 3.5 mm long; indusium chartaceus, stramineous, linear, entire, to 3.5 mm long, to 0.3 mm wide; sporangium long-stalked, uniseriate, 3-seriate below the capsule, capsule globose to broadly elliptic in lateral view, annulus with (17-)19(-19) indurated annulus cells, epistomium 2-celled, hypostomium 4-celled. Spores 64 per sporangium, brown, elliptic, monolete, perispore forms broad reticulate wings, exospore (28-)31.3(-34) x (18-)20.1(-22) (m. Figure 48E & F.
Habitat
Ecology: Terrestrial or epilithic, in leaf-litter on seasonally moist forest floor, deeply shaded. Not edaphically bound, but in Swaziland the species appears to be restricted to granite and granitic soils. Nanophanerophyte, mesophyte; fronds mesomorphic. Vegetative reproduction by the closely branched rhizome. Seasonal pattern apparently pronounced with new growth restricted to the rainy season.
Range
Distribution: Rare in Swaziland and currently known from the Malandzela hills only, occurring at an altitude of ±1 220 m. The species appears to be restricted to the eastern parts of south tropical and southern Africa and the western Indian Ocean region.
Date Updated: 19 August 2007
Herbarium
South African National Biodiversity Institute, Compton Herbarium, Cape Town (SAM)
Collection
Swaziland ferns and fern allies
Resource Type
Reference Sources
Entry From
Swaziland Ferns and Fern Allies, (2003) Author: J.P. Roux
Names
Asplenium lobatum Pappe & Rawson [family ASPLENIACEAE]
Common names
Asplenium gracile Pappe & Rawson, Syn. fil. Afr. austr.: 22 (1858), non D.Don (1825). Asplenium lunulatum Sw. var. gracile (Pappe & Rawson) Sim, Ferns S. Afr., 2nd edn: 146, pl. 49, t. a, b (1915). Asplenium erectum Bory ex Willd. var. gracile (Pappe & Rawson) Tardieu, Fl. Madag. 5, 1: 222, t. 30, fig. 4, 5 (1958). Type: In the primaeval forests of Natal, Gueinzius s.n. (S, holo.). Asplenium lobatum Pappe & Rawson var. pseudo-abyssinicum N.C.Anthony & Schelpe in Contr. Bolus Herb. 10: 149 (1982); Burrows, Sthn. Afr. Ferns: 240, pl. 39.6, map (1990). Type: Mozambique, Manica & Sofala, Gorongosa Mountain, south-west sector, 4 000 ft, 7/07/1955, Schelpe 5597 (BOL!, holo; B, BM, M, MO, P, PR, PRE, iso.).
lobatum = lobed
Vernacular names: Lobed spleenwort; Kant tralievaring (Afr.)
Information
Plants terrestrial or epilithic. Rhizome erect to suberect, to 20 mm long, to 4 mm in diameter, set with roots, crowded stipe bases and scales, scales chartaceus, atrocastaneus, clathrate, sessile, subulate to narrowly lanceolate, cordate, margins irregularly set with short filiform outgrowths, apex terminates in an oblong thin-walled cell, to 5 mm long, to 0.7 mm wide. Fronds crowded, caespitose, erect to arching, to 475 mm long; stipe firm, castaneus, terete, to 120 mm long, to 1.2 mm in diameter, narrowly green-winged for most of the length, initially moderately set with hairs and scales, subglabrous later, hairs 3-5-celled, clavate, to 0.25 mm long, scales chartaceus, atrocastaneus, clathrate, stalked, subulate to filiform, the larger often with short filiform outgrowths along the margin, apex terminates in an oblong thin-walled cell, to 5 mm long, to 0.7 mm wide; lamina anadromous, 2-pinnate, narrowly elliptic, to 360 mm long, to 85 mm wide, with up to 23 petiolated pinna pairs; rachis firm, castaneus, green towards the apex, terete, narrowly green-winged, sparsely set with hairs and scales similar to those on the stipe, glabrous later; pinnae petiolate, petiole to 1 mm long, opposite to alternate, basally more widely spaced than apically, pinnae in the lower half gradually reduced, ovate to narrowly ovate, to 45 mm long, to 16 mm wide, with up to 5 pinnule pairs; pinna-rachis terete, narrowly winged, glabrous; pinnules herbaceous, sessile, rhombic to flabellate, coarsely serrate or divided into 2-fid or 3-fid lobes, lobe apices entire or shallowly repand to erose, to 12 mm long, to 10 mm wide, glabrous adaxially and abaxially. Venation anadromous, evident, flabellately forked, ending in the teeth near the margin. Sori linear, usually on the terminal vein branches, but often also at a fork, to 3.5 mm long; indusium chartaceus, stramineous, linear, entire, to 3.5 mm long, to 0.3 mm wide; sporangium long-stalked, uniseriate, 3-seriate below the capsule, capsule globose to broadly elliptic in lateral view, annulus with (17-)19(-19) indurated annulus cells, epistomium 2-celled, hypostomium 4-celled. Spores 64 per sporangium, brown, elliptic, monolete, perispore forms broad reticulate wings, exospore (28-)31.3(-34) x (18-)20.1(-22) (m. Figure 48E & F.
Habitat
Ecology: Terrestrial or epilithic, in leaf-litter on seasonally moist forest floor, deeply shaded. Not edaphically bound, but in Swaziland the species appears to be restricted to granite and granitic soils. Nanophanerophyte, mesophyte; fronds mesomorphic. Vegetative reproduction by the closely branched rhizome. Seasonal pattern apparently pronounced with new growth restricted to the rainy season.
Range
Distribution: Rare in Swaziland and currently known from the Malandzela hills only, occurring at an altitude of ±1 220 m. The species appears to be restricted to the eastern parts of south tropical and southern Africa and the western Indian Ocean region.
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