1. Family: Poaceae Barnhart
    1. Genus: Pariana Aubl.
      1. Pariana obtusa Swallen

        This species is accepted, and its native range is S. Venezuela, N. Peru to Bolivia.

    [GB]
    Habit
    Perennial. Culms erect; 45 cm long. Leaves cauline. Leaf-sheaths glabrous on surface to pubescent. Leaf-sheath oral hairs setose; 10 mm long. Ligule an eciliate membrane; 1.5 mm long. Leaf-blade base cuneate, or broadly rounded; with a brief petiole-like connection to sheath. Leaf-blades lanceolate, or ovate; 16-19.5 cm long; 5-5.5 mm wide. Leaf-blade surface glabrous. Leaf-blade apex acuminate.
    Inflorescences
    Monoecious; with male and female spikelets in the same inflorescence. Synflorescence on a separate leafless culm. Inflorescence composed of racemes. Racemes 1; single; erect; multilateral; 8.5 cm long. Rhachis fragile at the nodes; terminating in a spikelet. Rhachis internodes linear. Sexes mixed (in a cluster at each node). Spikelets subtended by an involucre. Fertile spikelets sessile; 1 in the cluster. Male spikelets pedicelled; 5 in a cluster. Involucre composed of imperfect spikelets (male); with pedicels forming a cup; oblong. Pedicels fused to each other; united along margins; oblong; flattened; 1.7-3.5 mm long; pubescent; tip rectangular.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets ovate; laterally compressed; compressed slightly; 5.7-6.4 mm long; falling entire; deciduous with accessory branch structures. Male spikelets distinct from female; 1 flowered; deciduous with the fertile; ovate; 4-5.7 mm long; glabrous; acute. Male spikelet glumes 2; triangular; 1.1-3.7 mm long; muticous. Male spikelet lemma 4-5.7 mm long; muticous.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets ovate; laterally compressed; compressed slightly; 5.7-6.4 mm long; falling entire; deciduous with accessory branch structures.
    Glume
    Glumes similar; exceeding apex of florets; thinner than fertile lemma. Lower glume ovate; 5.7-6.4 mm long; 1 length of upper glume; chartaceous; 1-keeled. Lower glume apex acute. Upper glume ovate; 5.7-6.4 mm long; chartaceous; 1-keeled. Upper glume apex acute.
    Florets
    Fertile florets female. Fertile lemma ovate; 5-5.7 mm long; coriaceous; without keel. Lemma apex acute. Palea coriaceous.
    Flowers
    Lodicules 3. Anthers 15-18. Stigmas 2.
    Male
    Male spikelets distinct from female; 1 flowered; deciduous with the fertile; ovate; 4-5.7 mm long; glabrous; acute. Male spikelet glumes 2; triangular; 1.1-3.7 mm long; muticous. Male spikelet lemma 4-5.7 mm long; muticous.
    Distribution
    South America: northern South America and western South America.
    Reference
    Parianeae. Gr Bolivia 1997.

    Distribution

    Native to:

    Bolivia, Peru, Venezuela

    Pariana obtusa Swallen appears in other Kew resources:

    First published in Mem. New York Bot. Gard. 9: 268 (1957)

    Accepted by

    • Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Renvoize, S.A. (1998). Gramineas de Bolivia: 1-644. The Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions
    • GBIF (2008- continuously updated). Global Biodiversity Information Facility http://www.gbif.org/.
    • Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.
    • Renvoize, S.A. (1998). Gramineas de Bolivia: 1-644. The Royal Botanic Gardens, Kew.

    Sources

    GrassBase - The Online World Grass Flora
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0