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BFNA | Family List | BFNA Vol. 1 | Seligeriaceae | Brachydontium

Brachydontium olympicum (E. Britton) T. T. McIntosh & J. R. Spence, Bryologist. 89: 200. 1986.

  • Grimmia olympica E. Britton

    Stems 2--5 mm. Leaves 1--2.5 mm, distal laminal cells mostly isodiametric, 1:1, with a few cells 2:1 or transversely elongate, areolation somewhat irregular, proximal cells longer. Seta 0.5--2 mm, flexuose when dry. Capsule spherical to short-ovate, 0.4--0.6 mm. Peristome lacking. Spores 6--10 ┬Ám.

    Moist, acidic boulders; montane, predominantly alpine; B.C.; Alaska, Oreg., Wash.; Japan.

    The spherical or short-ovate capsules lacking peristome teeth and the somewhat shorter distal laminal cells distinguish B. olympicum from B. trichodes. This is a circum-North Pacific montane species, which should be sought for in coastal areas of Siberia.


     

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