Brachythecium rivulare Schimp.
  • Bryol. Eur.

Cite taxon page as 'WFO (2020): Brachythecium rivulare Schimp. Published on the Internet; Accessed on: 30 Oct 2020'

General Information

Plants large, occasionally medium-sized, in loose to moderately dense mats, light to dark green, yellow-green, or brownish yellow. Stems to 10 (-15) cm, creeping or ascending, terete-foliate, irregularly to regularly pinnate, branches to 20 mm, straight to slightly curved, terete-foliate. Stem leaves erect-appressed, often rigidly spreading in sympodial stems, closely imbricate, broadly ovate, broadest at 1/7 leaf length, concave, not plicate, slightly, or rarely moderately plicate, 1.5-2.5 × 0.8-1.5 mm; base rounded, broadly long-decurrent; margins plane or recurved at places, serrulate throughout (often serrate in sympodial stems); apex gradually tapered, broadly acute, rarely short-acuminate; costa to 50-70% leaf length, strong, terminal spine indistinct or absent; alar cells short-rectangular, strongly enlarged, 20-50 × 15-30(-35) µm, walls thin, region abruptly delimited, , of 8-15 × 8-15 cells, ; laminal cells linear, 50-100(-150) × 6-11 µm; basal cells 15-35 × 11-15 µm, region in 3 rows. Branch leaves more spreading, ovate-lanceolate, <2-3:1>; costal terminal spine present; alar region conspicuous or not; laminal cells enlarged across base. Sexual condition dioicous. Seta red-brown, 2-2.5 cm, rough. Capsule inclined to horizontal, red-brown or dark brown, ovate to elongate, curved, 2-2.5 mm; annulus separating by fragments; operculum long-conic. Spores 13-18(-22)µm.

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

     Information From

    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    Flora of North America @
    'Flora of North America @ eFloras (2008). Published on the Internet [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • B Flora of North America Association
    World Flora Online consortium
    World Flora Online Data. 2018.
    • C CC0 1.0 Universal (CC0 1.0).