Brachytheciastrum collinum (Schleich. ex Müll. Hal.) Ignatov & Huttunen
  • Arctoa

Cite taxon page as 'WFO (2020): Brachytheciastrum collinum (Schleich. ex Müll. Hal.) Ignatov & Huttunen. Published on the Internet; Accessed on: 27 Oct 2020'

General Information

Plants small, in loose to dense tufts, green usually only when very young, pale yellow or brownish yellow with age. Stems 2-4 cm, creeping to ascending, in dense tufts erect, terete-foliate, julaceous or subjulaceous, irregularly pinnate, branches to 4 mm, terete-foliate. Stem leaves appressed proximally, closely imbricate, straight to falcate, ovate to broadly ovate-lanceolate, not to rarely moderately plicate, 0.5-1(-1.5) × 0.2-0.5(-0.7) mm; margins plane or recurved proximally, coarsely serrate almost to base; apex abruptly or rarely gradually short-acuminate, acumen somewhat spreading to reflexed, often homomallous to falcate-secund; costa to 40-70% leaf length, occasionally almost absent, terminal spine absent; alar cells subquadrate, 8-20 × 9-11 µm, region small, of 10 × 4-6 cells, distinctly delimited; laminal cells elongate to linear, 25-60 × 4-7µm; basal cells almost undifferentiated. Seta reddish orange, 0.6-1.4 cm, slightly roughened, sometimes almost smooth except basal 1/4. Capsule slightly inclined to horizontal, reddish orange, ovate to subcylindric, 1-1.8 mm; endostome basal membrane 1/3 endostome length or longer, cilia as long as segments. Spores 9-12µm.

  • 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).