Plagiopus oederianus (Sw.) H.A.Crum & L.E.Anderson
  • Mosses E. N. Amer. 1: 636. 1981. 


Cite taxon page as 'WFO (2025): Plagiopus oederianus (Sw.) H.A.Crum & L.E.Anderson. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0001186096. Accessed on: 04 Jun 2025'

Local Descriptions

Order descriptions by:

General Information

Stems with cortical cells lax, hyaline, walls thin, central strand present. Leaves keeled distally, 2-3.5 mm; basal laminal cell walls thinner, especially toward costa; distal cells 9-22 × 7-8 µm, striate in longitudinal rows. Seta 0.7-1.8 cm. Capsule with operculum small; exostome teeth with intermediate thickenings on internal dorsal plates not paired with cross walls on external dorsal plates; endostome basal membrane well developed. Spores 20-26 µm.

  • Provided by: [B].Flora of North America @ efloras.org
    • Source: [
    • 1
    • ]. 

     

    1. Plagiopus oederianus (Sw.) Crum & Anderson   寒地平珠藓   han di ping zhu xian Mosses E. N. Amer. 1: 636. 1981. Bartramia oederiana Sw., J. Bot. (Schrader) 2: 180. 1802. Type: Europe. Bartramia grandiflora Schwaegr., Sp. Musc. Frond., Suppl. 1(2): 48. 1816. Plagiopus oederi (Brid.) Limpr., Laubm. Deutschl. 2: 548. 1895. Bartramia oederi Brid., Muscol. Recent. 2(3): 135. 1803.   Plants medium-sized to rather large, dark green or brownish green, in dense or somewhat loose tufts. Stems erect, 2–10 cm high, often branched, with dense rhizoids below. Leaves narrowly to somewhat broadly lanceolate, gradually acuminate with a long slender apex, erect-spreading to squarrose, more or less keeled above; margins usually double-toothed, sometimes single-toothed; costae ending below the apex or percurrent, smooth or slightly denticulate at back near apex; upper cells shortly rectangular; median leaf cells rectangular, 14–20 µm × 6–8 µm, smooth; basal cells larger. Setae 4–8 mm long; capsules suberect to inclined, spherical, furrowed when dry; opercula very low conic; peristome double; exostome teeth lanceolate, smooth or papillose, golden yellowish or orange-red; endostome segments linear-lanceolate, perforate, nearly as long as the teeth; basal membrane high; cilia single. Spores ellipsoidal, 24–26 µm × 18–20 µm, coarsely papillose.    

  • Provided by: [D].Moss Flora of China
    • Source: [
    • 6
    • ]. 

    Morphology

    Seen to yellow-green above, reddish brown below; saxicolous. Stems erect, 20-30 mm tall, irregularly branched above, lower stems covered with reddish tomentum, radicles papillose with numerous large, high papillae; in section distinctly three-sided, subtriangular, central strand very small, inner cortical cells in 6-8 rows, large, thin-walled, reddish, outer cortical cells in 2 rows, stereids, reddish yellow, epidermal cells differentiated, thin-walled, fragile, quickly eroded. Leaves erect and weakly flexuose dry, erect-spreading wet; narrowly lanceolate, 2-4 mm long; apex acuminate; margins recurved from base to upper leaf, entire below, sharply serrate above, frequently doubly serrate. Costa percurrent, superficial cells long- rectangular, papillose; in section bulging dorsally, subround, guide cells 2-4, large, thickened, ventral cells in single layer, smaller than guide cells, thickened, dorsal substereid band 4 cells thick, dorsal surface cells not differentiated. Upper laminal cells rectangular, 4-6:1, thickened, minutely verruculose-striolate, as numerous low, short ridges, occasionally a few cells also prorate distally; basal cells slightly longer rectangular, minutely verruculose-striolate; alar cells not differentiated. Perichaetia terminal, leaves similar to vegetative leaves; basal leaf cells long-rectangular to linear, smooth, yellowish. Seta 8-12 mm long, reddish yellow; capsule weakly inclined, urn globose, 2.0-2.5 mm long, weakly striate dry, reddish yellow, mouth frequently oblique; exothecial cells large, hexagonal to rectangular or quadrate, thin-walled; stomata present at base of urn, phaneropore to subphaneropore; peristome double, exostome teeth 16, narrowly triangular, 0.3 mm high, papillose, with median zig-zag line, trabeculae strong, endostome segments 16, fragile above, finely papillose; operculum plano-convex; calyptra cucullate; spores subround to ovoid, 15-27 µm, warty, yellow-brown.

  • Provided by: [C].e-Flora of South Africa
    • Source: [
    • 4
    • ]. 

    Habitat

    On rock in the subalpine grasslands.

  • Provided by: [C].e-Flora of South Africa
    • Source: [
    • 4
    • ]. 

    Distribution

    Natal and northern and eastern Lesotho. Also known from Europe, Asia, North America and Oceania.

  • Provided by: [C].e-Flora of South Africa
    • Source: [
    • 4
    • ]. 
    Flora of North America @ efloras.orgGeneral Information

    Stems with cortical cells lax, hyaline, walls thin, central strand present. Leaves keeled distally, 2-3.5 mm; basal laminal cell walls thinner, especially toward costa; distal cells 9-22 × 7-8 µm, striate in longitudinal rows. Seta 0.7-1.8 cm. Capsule with operculum small; exostome teeth with intermediate thickenings on internal dorsal plates not paired with cross walls on external dorsal plates; endostome basal membrane well developed. Spores 20-26 µm.

    e-Flora of South AfricaMorphology

    Seen to yellow-green above, reddish brown below; saxicolous. Stems erect, 20-30 mm tall, irregularly branched above, lower stems covered with reddish tomentum, radicles papillose with numerous large, high papillae; in section distinctly three-sided, subtriangular, central strand very small, inner cortical cells in 6-8 rows, large, thin-walled, reddish, outer cortical cells in 2 rows, stereids, reddish yellow, epidermal cells differentiated, thin-walled, fragile, quickly eroded. Leaves erect and weakly flexuose dry, erect-spreading wet; narrowly lanceolate, 2-4 mm long; apex acuminate; margins recurved from base to upper leaf, entire below, sharply serrate above, frequently doubly serrate. Costa percurrent, superficial cells long- rectangular, papillose; in section bulging dorsally, subround, guide cells 2-4, large, thickened, ventral cells in single layer, smaller than guide cells, thickened, dorsal substereid band 4 cells thick, dorsal surface cells not differentiated. Upper laminal cells rectangular, 4-6:1, thickened, minutely verruculose-striolate, as numerous low, short ridges, occasionally a few cells also prorate distally; basal cells slightly longer rectangular, minutely verruculose-striolate; alar cells not differentiated. Perichaetia terminal, leaves similar to vegetative leaves; basal leaf cells long-rectangular to linear, smooth, yellowish. Seta 8-12 mm long, reddish yellow; capsule weakly inclined, urn globose, 2.0-2.5 mm long, weakly striate dry, reddish yellow, mouth frequently oblique; exothecial cells large, hexagonal to rectangular or quadrate, thin-walled; stomata present at base of urn, phaneropore to subphaneropore; peristome double, exostome teeth 16, narrowly triangular, 0.3 mm high, papillose, with median zig-zag line, trabeculae strong, endostome segments 16, fragile above, finely papillose; operculum plano-convex; calyptra cucullate; spores subround to ovoid, 15-27 µm, warty, yellow-brown.

    Habitat

    On rock in the subalpine grasslands.

    Distribution

    Natal and northern and eastern Lesotho. Also known from Europe, Asia, North America and Oceania.

    Moss Flora of ChinaGeneral Information

     

    1. Plagiopus oederianus (Sw.) Crum & Anderson   寒地平珠藓   han di ping zhu xian Mosses E. N. Amer. 1: 636. 1981. Bartramia oederiana Sw., J. Bot. (Schrader) 2: 180. 1802. Type: Europe. Bartramia grandiflora Schwaegr., Sp. Musc. Frond., Suppl. 1(2): 48. 1816. Plagiopus oederi (Brid.) Limpr., Laubm. Deutschl. 2: 548. 1895. Bartramia oederi Brid., Muscol. Recent. 2(3): 135. 1803.   Plants medium-sized to rather large, dark green or brownish green, in dense or somewhat loose tufts. Stems erect, 2–10 cm high, often branched, with dense rhizoids below. Leaves narrowly to somewhat broadly lanceolate, gradually acuminate with a long slender apex, erect-spreading to squarrose, more or less keeled above; margins usually double-toothed, sometimes single-toothed; costae ending below the apex or percurrent, smooth or slightly denticulate at back near apex; upper cells shortly rectangular; median leaf cells rectangular, 14–20 µm × 6–8 µm, smooth; basal cells larger. Setae 4–8 mm long; capsules suberect to inclined, spherical, furrowed when dry; opercula very low conic; peristome double; exostome teeth lanceolate, smooth or papillose, golden yellowish or orange-red; endostome segments linear-lanceolate, perforate, nearly as long as the teeth; basal membrane high; cilia single. Spores ellipsoidal, 24–26 µm × 18–20 µm, coarsely papillose.    

     Information From

    Bartramiaceae
    https://about.worldfloraonline.org/tens/bryophytesgroup
    World Flora Online Data. 2022.
    • A CC0 1.0 Universal (CC0 1.0).
    Flora of North America @ efloras.org
    World Flora Online Data. 2024.
    • B Flora of North America Association
    e-Flora of South Africa
    e-Flora of South Africa. v1.36. 2022. South African National Biodiversity Institute. http://ipt.sanbi.org.za/iptsanbi/resource?r=flora_descriptions&v=1.36
    • C All Rights Reserved
    Moss Flora of China
    World Flora Online Data. 2024.
    • D Missouri Botanical Garden
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2024.
    • E All Rights Reserved
    • F CC0 1.0 Universal (CC0 1.0).