Humbertochloa A.Camus & Stapf
  • Bull. Soc. Bot. France 81: 467 (1934) 


Notes: Distribution: Tanzania, Madagascar

General Description

HABIT Perennial. Culms decumbent; 50-72.5-100 cm long. Ligule a ciliolate membrane. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades elliptic (1), or ovate (1). Leaf-blade venation with obscure cross veins. INFLORESCENCE Monoecious. Inflorescence composed of racemes. Racemes borne along a central axis; in a unilateral false spike; appressed; lanceolate; bearing 1 spikelet. Central inflorescence axis foliaceous; tip subulate. Rhachis deciduous from axis; broadly winged; terminating in a barren extension; extension flattened. Spikelets solitary. Fertile spikelets sessile. FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; with a barren rhachilla extension. Spikelets oblong; laterally compressed; gibbous; 8-9.5-11 mm long; falling entire; deciduous with accessory branch structures. GLUMES Glumes shorter than spikelet; thinner than fertile lemma. Lower glume subulate. Upper glume oblong; 0.33 length of adjacent fertile lemma; membranous; without keels; 5-7 -veined. Upper glume apex acute. FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret oblong; coriaceous; 13-17 -veined; obtuse. Fertile florets female. Fertile lemma ovate; chartaceous; 7-11 -veined. Lemma margins involute. Lemma apex acuminate. Palea chartaceous; 2 -veined. FLOWER Lodicules 2. Anthers 4 (1), or 5, or 6 (1). MALE Male inflorescence terminal; similar to female; of racemes along a central axis. Male spikelets similar to female but less developed. Male spikelet glumes 2. DISTRIBUTION Africa.

Distribution Map

 
  • Native distribution
Found in
  • Africa East Tropical Africa Tanzania
  • Western Indian Ocean Madagascar

  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.