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BFNA | Family List | BFNA Vol. 1 | Scouleriaceae

Scouleria Hooker, Bot. Misc. 1: 33. 1829 [1830].
[Scouleria, for Dr. John Scouler (1804--1871), physician, botanical collector and naturalist]

Authors: Steven Churchill

  • Grimmia sect. Scouleria (Hooker) J. K. A. Müller
  • Grimmia subgen. Scouleria (Hooker) Lesquereux & James

    Plants clustered in loose to compact tufts, black or brown with age. Stems ca. 4-10 cm; rhizoids forming a “hold-fast,” occasionally extending from stem and abaxial surface of leaves. Leaves erect to patent when dry, when present pseudocosta marginal [submarginal]; apex often cucullate. Outer perichaetial leaves one-third shorter than inner leaves. Vaginula forming a sheath around proximal third or fourth of seta. Seta 1/3--1/2 capsule length. Capsule glossy black with age, columella when dry appearing longitudinally ribbed, when wet expanding, becoming stoutly cylindrical or ovoid. Spores 30--55 µm.

    Species 3 (2 species in the flora); n Asia, nw North America, and temperate South America (S. patagonica).

    1 Leaf margin 1-stratose or partially (rarely fully) 2-stratose; peristome present.   Scouleria aquatica
    + Leaf margin multistratose; peristome lacking.   Scouleria marginata

    Lower Taxa

    Related Synonym(s):


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