1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum sciurotoides Zuloaga & Morrone

        This species is accepted, and its native range is Central & S. Tropical America.

    [GB]
    Habit
    Annual. Culms decumbent; 10-85 cm long; rooting from lower nodes. Culm-internodes thin-walled; 2.5-11.5 cm long; distally glabrous, or hispid. Culm-nodes constricted; black; pubescent. Lateral branches ample; arising from upper culm. Leaf-sheaths 3-6.5 cm long; striately veined; glabrous on surface, or pilose; with tubercle-based hairs; outer margin hairy. Ligule a ciliate membrane. Collar pilose. Leaf-blade base amplexicaul; asymmetrical. Leaf-blades lanceolate, or ovate; 3-10 cm long; 8-20 mm wide. Leaf-blade surface glabrous, or pubescent, or hirsute; hairy adaxially; with tubercle-based hairs. Leaf-blade margins scabrous; ciliate; hairy at base.
    Inflorescences
    Inflorescence a panicle. Panicle open; pyramidal; effuse; 2.5-9 cm long; 1.5-8.5 cm wide. Panicle axis villous. Panicle branches flexuous; glabrous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels glabrous.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 1.5-1.9 mm long; 0.5-0.7 mm wide; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 1.5-1.9 mm long; 0.5-0.7 mm wide; falling entire.
    Glume
    Glumes dissimilar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.4-0.9 mm long; 0.33-0.5 length of spikelet; membranous; without keels; 1-3(-7) -veined. Lower glume apex truncate to acute. Upper glume elliptic; 1 length of spikelet; membranous; without keels; 7-9 -veined. Upper glume surface pubescent. Upper glume apex acute.
    Florets
    Basal sterile florets barren; with palea. Lemma of lower sterile floret similar to upper glume; elliptic; 1 length of spikelet; membranous; 7-9 -veined; pubescent; acute. Palea of lower sterile floret 0.5 length of lemma. Fertile lemma elliptic; dorsally compressed; 1.2-1.7 mm long; 0.4-0.6 mm wide; indurate; shiny; without keel. Lemma surface papillose. Lemma margins involute. Lemma apex apiculate. Palea involute; indurate.
    Fruits
    Caryopsis with adherent pericarp; 1.1 mm long.
    Distribution
    South America: Mesoamericana, northern South America, western South America, and Brazil.
    Reference
    Paniceae. Zuloaga 1994.

    Images

    Distribution

    Native to:

    Belize, Bolivia, Brazil Northeast, Brazil South, Brazil Southeast, Ecuador, French Guiana, Guyana, Nicaragua, Panamá, Venezuela

    Panicum sciurotoides Zuloaga & Morrone appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Clayton, W.D. [4743], Brazil K001102174
    Clayton, W.D. [4666], Brazil K001102175
    Hatschbach, G. [32663], Brazil K001102168
    Hatschbach, G. [14758], Brazil K001102169
    Amorim, A.M. [661], Brazil K001102161
    Irwin, H.S. [28151], Brazil K001102163
    Irwin, H.S. [27666], Brazil K001102164
    Swainson [s.n.], Brazil K001102180
    Chase, A. [10187], Brazil K001102166
    Smith, L.B. [6003], Brazil K001102173
    Paciornik, E.F. [117], Brazil K001102176
    Riedel [s.n.], Brazil K001102177
    Burchell, W.J. [3095], Brazil K001102172
    Muniz, C.F. [7891], Brazil K001102165
    Saito, Y. [1281], Brazil K001102167
    Dombrowski, L.T. [277], Brazil K001102171
    Mexia, Y. [5819], Minas Gerais K000309280 isotype
    Mexia, Y. [5819], Minas Gerais K000309281 isotype
    Mexia, Y. [4738], Brazil K001102162
    Glaziou, A. [13316], Brazil K001102178
    Glaziou, A. [15697], Brazil K001102179
    Swainson, W. [s.n.], Brazil K001102181
    Yoshiko, S. [1612], Brazil K001102170

    First published in Novon 1: 1 (1991)

    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.
    • Jørgensen, P.M. & León-Yánez, S. (eds.) (1999). Catalogue of the Vascular Plants of Ecuador Monographs in Systematic Botany from the Missouri Botanical Garden 75: i-viii, 1-1181.
    • Renvoize, S.A. (1998). Gramineas de Bolivia: 1-644. The Royal Botanic Gardens, Kew.
    • Boggan, J. Funck, V. & Kelloff, C. (1997). Checklist of the Plants of the Guianas (Guyana, Surinam, Franch Guiana) ed. 2: 1-238. University of Guyana, Georgetown.

    Literature

    Kew Backbone Distributions
    • Forzza, R.C. & al. (2013). Lista de Espécies da Flora do Brasil http://floradobrasil.jbrj.gov.br/2010/.
    • Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.
    • Jørgensen, P.M. & León-Yánez, S. (eds.) (1999). Catalogue of the Vascular Plants of Ecuador Monographs in Systematic Botany from the Missouri Botanical Garden 75: i-viii, 1-1181.
    • Renvoize, S.A. (1998). Gramineas de Bolivia: 1-644. The Royal Botanic Gardens, Kew.
    • Boggan, J. Funck, V. & Kelloff, C. (1997). Checklist of the Plants of the Guianas (Guyana, Surinam, Franch Guiana) ed. 2: 1-238. University of Guyana, Georgetown.
    • Davidse, G. & al. (eds.) (1994). Flora Mesoamericana 6: 1-543. Universidad Nacional Autónoma de México, México, D.F.

    Sources

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

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. 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 2019. 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