Alloteropsis J.Presl
  • C.B.Presl, Reliq. Haenk. 1: 343 (1830) 


Notes: Distribution: Trop. & Subtrop. Old World

General Description

HABIT Annual (2), or perennial (3). Rhizomes absent (4), or short (1). Culms erect (3), or geniculately ascending (4), or decumbent (2); slender (1/1); 20-79-150 cm long; firm (4), or wiry (1). Lateral branches lacking (1/1). Leaf-sheaths open for most of their length (2/2). Ligule a ciliate membrane (1), or a fringe of hairs. Leaf-blades linear (3), or lanceolate (2), or ovate (1). Leaf-blade midrib evident (2/2). INFLORESCENCE Inflorescence composed of racemes. Racemes digitate, or borne along a central axis (1); unilateral. Rhachis angular. Spikelet packing contiguous (4), or lax (1). Raceme-bases brief (4), or filiform (3). Spikelets ascending (1/1); solitary (1), or in pairs, or clustered at each node. Fertile spikelets pedicelled; 2-4 in the cluster, or 5-6 in the cluster (1). Pedicels tip cupuliform (1/1). FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension, or with a barren rhachilla extension. Spikelets elliptic (2), or ovate (4); dorsally compressed; 2.5-4.25-7.5 mm long; falling entire. GLUMES Glumes reaching apex of florets; thinner than fertile lemma. Lower glume ovate; membranous; without keels; 1 -veined (1), or 3 -veined (4). Lower glume lateral veins absent (1), or distinct (4). Lower glume apex acute (1), or acuminate (4). Upper glume ovate; membranous (3), or cartilaginous (2); without keels; 5 -veined. Upper glume surface glabrous (4), or puberulous (1). Upper glume apex acute (3), or acuminate (3). FLORETS Basal sterile florets male; with palea. Lemma of lower sterile floret ovate; membranous (3), or chartaceous (1), or cartilaginous (1); 5 -veined; truncate (1), or acute (1), or acuminate (3). Fertile lemma lanceolate (2), or oblong (3), or ovate (1); chartaceous; without keel; 5 -veined. Lemma margins involute; eciliate (4), or ciliolate (1). Lemma apex acuminate; awned; 1 -awned. Palea 1 length of lemma; chartaceous. Palea surface glabrous (3), or pubescent (2). Palea apex entire (1/1). FLOWER Lodicules 2 (1/1). Anthers 2 (1/2), or 3 (2/2). Ovary glabrous (2/2). FRUIT Caryopsis ovoid (2/2); laterally compressed (1/1). DISTRIBUTION Africa, or Temperate Asia (2), or Tropical Asia (2), or Australasia (2), or Pacific (1), or North America (1).

Distribution Map

 
  • Native distribution
  • Introduced distribution
Found in
  • Africa East Tropical Africa Kenya
  • Tanzania
  • Uganda
  • Northeast Tropical Africa Chad
  • Ethiopia
  • Somalia
  • South Tropical Africa Angola
  • Malawi
  • Mozambique
  • Zambia
  • Zimbabwe
  • Southern Africa Botswana
  • Cape Provinces
  • Caprivi Strip
  • Free State
  • KwaZulu-Natal
  • Lesotho
  • Namibia
  • Northern Provinces
  • Swaziland
  • West Tropical Africa Benin
  • Burkina
  • Ghana
  • Guinea
  • Guinea-Bissau
  • Ivory Coast
  • Liberia
  • Mali
  • Nigeria
  • Senegal
  • Sierra Leone
  • Togo
  • West-Central Tropical Africa Burundi
  • Cameroon
  • Central African Republic
  • Congo
  • Zaire
  • Western Indian Ocean Madagascar
  • Mauritius
  • Réunion
  • Asia-Temperate China China South-Central
  • China Southeast
  • Hainan
  • Eastern Asia Taiwan
  • Asia-Tropical Indian Subcontinent Assam
  • Bangladesh
  • East Himalaya
  • India
  • Nepal
  • Sri Lanka
  • West Himalaya
  • Indo-China Cambodia
  • Laos
  • Myanmar
  • Nicobar Is.
  • Thailand
  • Vietnam
  • Malesia Borneo
  • Jawa
  • Lesser Sunda Is.
  • Malaya
  • Maluku
  • Philippines
  • Sulawesi
  • Sumatera
  • Papuasia New Guinea
  • Solomon Is.
  • Australasia Australia New South Wales
  • Northern Territory
  • Queensland
  • South Australia
  • Western Australia
  • Pacific Southwestern Pacific New Caledonia
Introduced into
  • Northern America Southeastern U.S.A. Florida
  • Maryland
  • Mississippi

  Bibliography

  • 1 Govaerts, R.H.A. (2011). World checklist of selected plant families published update. Facilitated by the Trustees of the Royal Botanic Gardens, Kew.

 Information From

GrassBase - The Online World Grass Flora
http://www.kew.org/data/grasses-db/
Clayton, W.D., Vorontsova, M.S., Harman, K.T. and Williamson, H. (2006 onwards). GrassBase - The Online World Grass Flora. http://www.kew.org/data/grasses-db.html. [accessed 24 January 2012; 14:30 GMT]
  • A © Copyright The Board of Trustees, Royal Botanic Gardens, Kew.
eMonocot
http://e-monocot.org
eMonocot. (2010, 1st November). Retrieved Wednesday, 8th February, 2012, from http://e-monocot.org.
  • B Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
World Checklist of Selected Plant Families
http://apps.kew.org/wcsp/
WCSP 2014. 'World Checklist of Selected Plant Families. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; http://apps.kew.org/wcsp/ Retrieved 2011 onwards
  • C See http://kew.org/about-kew/website-information/legal-notices/index.htm You may use data on these Terms and Conditions and on further condition that: The data is not used for commercial purposes; You may copy and retain data solely for scholarly, educational or research purposes; You may not publish our data, except for small extracts provided for illustrative purposes and duly acknowledged; You acknowledge the source of the data by the words "With the permission of the Trustees of the Royal Botanic Gardens, Kew" in a position which is reasonably prominent in view of your use of the data; Any other use of data or any other content from this website may only be made with our prior written agreement.