Archidium hallii Austin
  • Bull. Torrey Bot. Club

Cite taxon page as 'WFO (2020): Archidium hallii Austin. Published on the Internet; Accessed on: 07 Jul 2020'

General Information

Plants 3-10 mm, perennial, in dense short turfs, pale-green to yellow-green. Stems branched by several innovations from axils of stem leaves or outer perichaetial leaves, often becoming prostrate with age. Stem leaves erect-spreading, lanceolate to ovate-lanceolate, acuminate, 0.7-1.5 mm, becoming reduced proximally; costa percurrent to slightly excurrent; laminal margins smooth, weakly recurved; median and distal laminal cells rhomboidal to hexagonal, 3-4:1, 35-70 × 12-18 µm, proximal cells rectangular, 2-4:1, 40-70 × 18-24 µm, short-rectangular to quadrate in alar region in 2-6 rows extending 7-15 cells along proximal laminal margin; leaves of innovations similar to distal stem leaves except being smaller, gradually reduced proximally. Perichaetial leaves larger, 1.5-3 mm, elongate-triangular, lanceolate or ovate-lanceolate, gradually acuminate; costa percurrent to short-excurrent; laminal margins smooth, weakly recurved distally; median and distal laminal cells uniformly rhomboid to hexagonal, 3-7:1, 35-130 × 15-28 µm, proximal cells rectangular, 4-6:1, 70-140 × 15-28 µm, sometimes hyaline in alar region but cells not strongly differentiated. Specialized asexual reproduction absent. Sexual condition autoicous, antheridia terminating axillary leaf buds. Capsule terminal, 450-700 µm. Spores typically 20(8-36) per capsule, triangular to rounded-polyhedral, 140-250 µm, smooth to granulose, yellow.

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

    Distribution Map

    • Native distribution
    Found in
    • Southern America Brazil Rio Grande do Sul
    • Santa Catarina

     Information From

    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    Brazilian Flora 2020 project - Projeto Flora do Brasil 2020
    Brazil Flora G (2014): Brazilian Flora 2020 project - Projeto Flora do Brasil 2020. v393.147. Instituto de Pesquisas Jardim Botanico do Rio de Janeiro. Dataset/Checklist. doi:10.15468/1mtkaw
    • B Group Brazil Flora, REFLORA Program
    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.
    • C Flora of North America Association
    World Flora Online consortium
    World Flora Online Data. 2018.
    • D CC0 1.0 Universal (CC0 1.0).