Dicranodontium asperulum (Mitt.) Broth.
  • Nat. Pflanzenfam.


Cite taxon page as 'WFO (2021): Dicranodontium asperulum (Mitt.) Broth. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0001158758. Accessed on: 06 Mar 2021'

General Information

Plants brown proximally, yellowish to dark green distally, dull to glossy, in loose tufts. Stems 1-6(-8) cm, radiculose proximally with whitish to reddish brown rhizoids. Leaves erect-patent, flexuose, spreading at ca. 45º or more when wet, occasionally falcate-secund at stem apices, 3-8 mm, often deciduous, abruptly narrowed from an ovate base into a setaceous subula, subtubulose proximally, channeled distally, margins serrulate to serrate at shoulders, usually strongly serrate distally, apex acute; costa distinct, occupying ca. 1/3 of leaf base; cells not thick-walled or pitted, distal cells linear, 24-56 × 5-6 µm, basal cells broadly rectangular, hyaline, ca. 9 µm wide, alar cells sometimes forming indistinct auricles, hyaline. Seta 15-20 mm, erect-sinuose. Capsule 1.5-2 mm; operculum not seen, reportedly shorter than the capsule. Spores 9-14 µm.

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

     

    1. Dicranodontium asperulum (Mitt.) Broth.   粗叶青毛藓 cu-ye qing-mao xian Nat. Pflanzenfam. I(3): 336. 1901. Dicranum asperulum Mitt., J. Proc. Linn. Soc., Bot. Suppl. 1: 22. 1859. Syntypes. India: Sikkim, J. D. Hooker 18, 29. Dicranodontium aristatum Schimp., Syn. Musc. Eur. 695. 1860. Dicranodontium capillifolium (Dix.) Takaki, J. Hattori Bot. Lab. 31: 292. 1968. Brothera capillifolia Dix., J. Bombay Nat. Hist. Soc. 39: 774. 1937. Synonymized by Frahm (1997).   Plants small to rather large, up to 5 cm high, yellowish green, in weakly silky, loose or dense tufts. Stems erect or ascending, somewhat flexuose, unbranched or sparsely branched, radiculose below; central strand present. Leaves up to 7 mm long, homomallous, often deciduous, flexuose or falcate when dry, erect-spreading when moist, upper ones usually falcate-secund, abruptly narrowed from an ovate, convolute base to a very long, roughened, setaceous apex or often in semi-canaliculate awn; margins distinctly serrulate at shoulder, sometimes nearly to the base, often dentate near the apex; costa occupying 1/4–1/3 the leaf base width, long-excurrent, often spinulose at tips, with several dentate ridges at back, occasionally nearly smooth; upper cells above the shoulders rectangular to linear, smooth or nearly so; upper basal cells in the sheathing base rectangular to linear, 30–50 µm × 10–20 µm, firm-walled; lower basal cells becoming broadly rectangular close to the costa, narrower near the margins, forming an indistinct marginal band; alar cells often inflated, broadly rectangular to subquadrate, 30–60 µm × 20–30 µm, thin-walled, hyaline, fragile, occasionally forming indistinct auricles. Dioicous. Perichaetial leaves not much differentiated. Setae up to 1 cm long, yellowish, strongly flexuose when dry, cygneous when moist; capsules cylindric, 0.6–1.0 mm × 0.4–0.5 mm, brownish; opercula long-rostrate; annuli absent; peristome teeth lanceolate, ca. 0.3 mm long, divided unequally to the middle. Spores not seen.    

     

  • Provided by: [C].Moss Flora of China
    • Source: [
    • 2
    • ]. 

     Information From

    Dicranaceae
    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    Flora of North America @ efloras.org
    http://www.efloras.org/flora_page.aspx?flora_id=1
    'Flora of North America @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=1 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • B Flora of North America Association
    Moss Flora of China
    http://tropicos.org/Project/MFC
    Moss Flora of China. Missouri Botanical Garden. Accessed on Jun. 2020.
    • C Missouri Botanical Garden
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • D CC0 1.0 Universal (CC0 1.0).