Leptodictyum riparium

Leptodictyum riparium, commonly known as Kneiff's feathermoss,[1] streamside leptodictyum moss,[2] or knapwort,[3] is a species of moss[4] of cosmopolitan distribution. The only places it is not found are the Pacific Islands and Australia.[3] It is commonly found growing in the lakes and rivers of Minnesota[5] and is also present in Mexico, Guatemala, the Bahamas, Cuba, Jamaica, Haiti, the Dominican Republic, Venezuela, Peru and Brazil.[6]

Leptodictyum riparium
Scientific classification
Kingdom:
Plantae
Division:
Bryophyta
Class:
Bryidae
Order:
Hypnales
Family:
Amblystegiaceae
Genus:
Leptodictyum
Species:
L. riparium
Binomial name
Leptodictyum riparium
(Hedw.) Warnst.

This moss has several different forms and can grow up to 30 cm. Its ovate leaves, which are in two rows, are often pointed at their apex.[3] Leptodictyum riparium has been found in an acidic mining lake and can live at a pH down to 1.6 in volcanic craters. It was once found with Eleocharis acicularis at a Canadian mining lake.[7] It is known to contain high levels of phosphate[8] and is an easy to grow moss that is also used in aquariums. It has been reported that L. riparium tolerates a wide range of nutrient conditions and its population increases as ammonia increases.[9]

References
  1. Edwards, Sean R. (2012). English Names for British Bryophytes. British Bryological Society Special Volume. 5 (4 ed.). Wootton, Northampton: British Bryological Society. ISBN 978-0-9561310-2-7. ISSN 0268-8034.
  2. "Leptodictyum riparium". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 4 February 2016.
  3. De Thabrew, Vivian (2014). A Manual of Water Plants. AuthorHouse. p. 129. ISBN 1491889284. Retrieved October 11, 2015.
  4. Whittaker, R. H. (2012). Classification of Plant Communities. Springer Publishing. p. 140. ISBN 9400991835. Retrieved October 11, 2015.
  5. Acton, Q. Ashton (2013). Issues in Global Environment—Biodiversity, Resources, and Conservation: 2013 Edition. ScholarlyEditions. p. 269. ISBN 1490109633. Retrieved October 11, 2015.
  6. Flora Neotropica, The New York Botanical Garden, 2003, pages 40-43
  7. Geller, Walter; Scultze, Martin; Kleinmann, Bob; Wolkersdorfer, Christian (2012). Acidic Pit Lakes: The Legacy of Coal and Metal Surface Mines. Springer Publishing. p. 151. ISBN 3642293840. Retrieved October 11, 2015.
  8. Lichtfouse, Eric; Schwarzbauer, Jan; Didier, Robert (2013). Green Materials for Energy, Products and Depollution. Springer Publishing. pp. 424–435. ISBN 9400768362. Retrieved October 11, 2015.
  9. Hanson, David T.; Rice, Steven K. (2013). Photosynthesis in Bryophytes and Early Land Plants. Springer Publishing. pp. 211–213. ISBN 9400769881. Retrieved October 11, 2015.
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