Hygrochloa Lazarides
  • Brunonia 2: 86 (1979) 


Notes: Distribution: N. Australia

General Description

HABIT Annual. Culms erect (1), or prostrate (1); 60-115-200 cm long; spongy (1), or firm (1); rooting from lower nodes (1/1). Lateral branches fastigiate (1/1). Ligule a fringe of hairs. Leaf-blade margins cartilaginous (1/1). INFLORESCENCE Monoecious; with male and female spikelets in the same inflorescence. Inflorescence composed of racemes. Racemes borne along a central axis; appressed; unilateral; bearing few fertile spikelets; bearing 1-4 fertile spikelets on each, or 5-10 fertile spikelets on each (1). Central inflorescence axis tip subulate. Rhachis angular; terminating in a barren extension; extension subulate. Spikelet packing abaxial. Sexes segregated; on unisexual branches; with male above. Spikelets solitary. Fertile spikelets sessile. Male spikelets sessile. FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 2-2.312-2.75 mm long; falling entire. GLUMES Glumes shorter than spikelet; thinner than fertile lemma. Lower glume ovate (1), or orbicular (1); membranous; without keels; 0 -veined (1), or 3 -veined (1). Lower glume lateral veins absent (1), or distinct (1). Lower glume apex entire, or erose, or dentate; 2 -fid; truncate (1), or obtuse. Upper glume ovate; membranous; without keels; 5-7 -veined. Upper glume apex entire, or lobed (1); 2 -fid (1/1); obtuse. FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret ovate; membranous; 5-7 -veined; acute. Fertile florets female. Fertile lemma ovate; coriaceous; much thinner on margins; without keel; 5 -veined. Lemma margins covering most of palea. Lemma apex acute. Palea 1 length of lemma; coriaceous; 2 -veined. FLOWER Anthers 3. FRUIT Caryopsis with adherent pericarp; obovoid; dorsally compressed. Embryo 0.66 length of caryopsis. Hilum punctiform. MALE Male spikelets distinct from female; oblong. Male spikelet glumes 2. DISTRIBUTION Australasia.

Distribution Map

 
  • Native distribution
Found in
  • Australasia Australia Northern Territory
  • Queensland
  • Western Australia

  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.