Aulacomnium acuminatum (Lindb. & Arnell) Kindb.
  • Enum. Bryin. Exot., suppl. 2,

Cite taxon page as 'WFO (2020): Aulacomnium acuminatum (Lindb. & Arnell) Kindb. Published on the Internet; Accessed on: 15 Jul 2020'

General Information

Plants to 10 cm, in lateral mats or erect among other mosses, yellow-brown or brown. Stems yellow or light brown; cross section pentagonal, cortical cells in 4-5 layers, medulla cell walls thick or thin, central strand well developed; rhizoids in groups along stem, hidden by leaves. Leaves strongly imbricate, not twisted when dry, erect or imbricate when moist, linear-lanceolate to oblong-lanceolate, widest mid leaf, weakly concave; base not rounded, narrowed to insertion, sometimes slightly auriculate; margins prominently revolute 1.5-2 times nearly to apex, entire; apex gradually acuminate to slender-acute, usually long-attenuate in youngest leaves; costa flexuose distally; laminal cells isodiametric to elongate, papillae blunt; basal cells 2-stratose, brown. Specialized asexual reproduction absent. Perigonia as terminal discoid splash platforms; paraphyses of 5-8 cells. Perichaetia with paraphyses absent. Seta 1.5-2 cm. Capsule horizontal or slightly curved, 3 mm; operculum short-conic, rostrum blunt; endostome cilia weakly nodulose. Spores 10-13 µm, slightly papillose.

  • 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).