References

  1. ^ a b c d Phillips, Roger (1980). Grasses, Ferns, Mosses and Lichens of Great Britain. Pan Books. ISBN 0-330-25959-8. 
  2. ^ C.J. Alexopolous, Charles W. Mims, M. Blackwell, Introductory Mycology, 4th ed. (John Wiley and Sons, Hoboken NJ, 2004) ISBN 0-471-52229-5
  3. ^ The Widgets Dictionary Application and Other Wikipedia Articles