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

        This species is accepted, and its native range is Brazil (Acre, Amapá, Pará).

    [GB]
    Habit
    Perennial. Rhizomes short. Culms erect; 90-130 cm long. Lateral branches lacking. Leaves cauline. Leaf-sheaths longer than adjacent culm internode; glabrous on surface, or pilose. Leaf-sheath oral hairs scanty. Leaf-sheath auricles erect. Ligule an eciliate membrane; 3 mm long; truncate. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades oblong; 15-26 cm long; 40-60 mm wide. Leaf-blade surface scabrous; rough abaxially. Leaf-blade apex acuminate.
    Inflorescences
    Monoecious; with male and female spikelets in the same inflorescence. Synflorescence on the same culm as leaves. Inflorescence composed of racemes. Racemes 1; single; drooping; oblong; multilateral; 20 cm long; 13 mm wide. Rhachis fragile at the nodes. Spikelet packing crowded. Sexes mixed (in a cluster at each node). Spikelets appressed; subtended by an involucre. Fertile spikelets sessile; 1 in the cluster. Male spikelets pedicelled; 5 in a cluster. Involucre composed of imperfect spikelets; with pedicels forming a cup; oblong. Pedicels fused to each other; united along margins; cuneate; flattened; 3 mm long; puberulous; tip rectangular.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 8 mm long; falling entire; deciduous with accessory branch structures.
    Glume
    Glumes similar; exceeding apex of florets; thinner than fertile lemma. Lower glume lanceolate; 8 mm long; chartaceous; without keels; 3 -veined. Lower glume lateral veins with cross-veins. Lower glume surface asperulous. Lower glume apex acute. Upper glume ovate; 8 mm long; chartaceous; 3 -veined. Upper glume lateral veins with cross-veins. Upper glume surface asperulous. Upper glume apex acute.
    Florets
    Fertile florets female. Fertile lemma ovate; 6 mm long; coriaceous; without keel. Lemma surface scaberulous; rough above. Lemma apex acute. Palea 1 length of lemma; coriaceous; without keels.
    Flowers
    Lodicules 3. Stigmas 2.
    Spikelets
    Male spikelets distinct from female; 1 flowered; deciduous with the fertile; ovate; 6.5-8 mm long; hairy (glume margins). Male spikelet glumes 2; ovate; 5-6 mm long; 2-3 -veined. Male spikelet lemma 6.5-8 mm long; 5 -veined. Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 8 mm long; falling entire; deciduous with accessory branch structures.
    Male
    Male spikelets distinct from female; 1 flowered; deciduous with the fertile; ovate; 6.5-8 mm long; hairy (glume margins). Male spikelet glumes 2; ovate; 5-6 mm long; 2-3 -veined. Male spikelet lemma 6.5-8 mm long; 5 -veined.
    Distribution
    South America: Brazil.
    Reference
    Parianeae. Swallen 2001.

    Distribution

    Native to:

    Brazil North

    Pariana nervata Swallen appears in other Kew resources:

    First published in J. Washington Acad. Sci. 30: 71 (1940)

    Accepted by

    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions
    • Forzza, R.C. & al. (2013). Lista de Espécies da Flora do Brasil http://floradobrasil.jbrj.gov.br/2010/.

    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