Wardia hygrometrica Harv. & Hook.
  • Companion Bot. Mag.


This taxon is accepted by Wardiaceae
Notes: More details could be found in The Plant List v.1.1. Originally in The Plant List v.1.0

Morphology

Plants small to large, forming mats, dark green or yellow-green to blackish green; aquatic and saxicolous, in splash zone or submerged. Stems naked and black below when old, suberect, 15-80 mm long, branching irregular above stipe, subfastigiate; in section round to oval, central strand absent, inner cortical cells large, thin-walled, hyaline, in 5 or 6 rows, outer cortical cells smaller, yellowish, thick-walled, in 5 or 6 rows, epidermis absent; axillary hairs not seen; paraphyllia absent; pseudoparaphyllia absent. Leaves evenly spaced, spreading to crect-appressed wet, appressed dry, ± concave; on stipe lanceolate to triangular, 1.5-2.0 mm long; acute; margins plane, entire, eroded; upper stem and branch leaves variable; narrowly or broadly elliptical or short and broadly oblong, 1.2-2.2 mm long; acute to narrowly acuminate or occasionally mucronate to apiculate; rounded at base; margins plane, entire, cells not differentiated. Costa variable, absent, present only at base, present and discontinuous only at apex and base, or single and strong throughout, smooth; ventral and dorsal surface cells elongate; in section flat below, round above, guide cells not differentiated, in best development consisting of 3-6 rows of undifferentiated, thickened cells; most leaves with bistratose region at extreme base and thickened awn at apex. Upper laminal cells linear-fusiform and somewhat sigmoid, homogeneous, 57-89 µm long, 7-10 µm wide, walls thickened or rarely thin, smooth; basal cells linear to long-rectangular, 50-125 µm long, 7-10 µm wide, brownish yellow, walls incrassate, smooth; alar cells strongly differentiated, forming distinct groups, enlarged and inflated, hyaline, walls thin. Dioicous or rarely autoicous. Perichaetia at apex; perichaetial leaves numerous, broadly ovate, apex acute, sheathing below. Seta 4-6 mm long, yellow-brown to blackish, twisted clockwise when dry, smooth, thick. Capsule exserted, erect, short-cylindrical or rarely ovoid, 1.0-2.2 mm long, smooth but somewhat ribbed when young and dry, yellow-brown to black; urn short-cylindrical; neck not differentiated; exothecial cells irregular, rounded to quadrate or hexagonal, walls incrassate, cells at mouth quadrate, darker; annulus not differentiated, neck cells hexagonal to rectangular, thickened; stomata absent. Peristome rudimentary, yellow to orange; exostome teeth irregular, short-rectangular, truncate, erect, 40-50(-95) µm high, smooth with irregular prostome development; endostome absent. Operculum curved-rostrate, attached to columella, persistent, 1.0-1.3 mm long. Calyptra not seen. Spores rounded, 25-31(-37) µm, granulate, brown.

  • Provided by: [A].e-Flora of South Africa
    • Habitat

      Aquatic and saxicolous, in splash zone or submerged in mountain streams.

    • Provided by: [A].e-Flora of South Africa
      • Distribution

        Endemic to southern Africa, W. hygrometrica is found in the southwestern Cape. Most specimens have been collected on Table Mountain, fertile ones mostly between October and February.

      • Provided by: [A].e-Flora of South Africa
        •   Bibliography

          • 1 Companion Bot. Mag.
          • 2 Magill, RE, van Rooy, J. 1998. Erpodiaceae to Hookeriaceae. Fl. S. Africa. Bryophyta. 1. 445 - 622.

           Information From

          e-Flora of South Africa
          http://ipt.sanbi.org.za/iptsanbi/resource?r=flora_descriptions
          e-Flora of South Africa. v1.21. 2018. South African National Biodiversity Institute. http://ipt.sanbi.org.za/iptsanbi/resource?r=flora_descriptions&v=1.21
          • A South African National Biodiversity Institute
          International Union for Conservation of Nature
          https://www.iucn.org/
          IUCN 2016. IUCN Red List of Threatened Species. Version 2016-2
          • B See IUCN Terms and conditions of use http://www.iucnredlist.org/info/terms-of-use
          Wardiaceae
          World Flora Online Data. 2017.
          • C CC0 1.0 Universal (CC0 1.0).
          World Flora Online consortium
          http://www.worldfloraonline.org/organisation/WFO
          World Flora Online Data. 2018.
          • D CC0 1.0 Universal (CC0 1.0).