Supriya Ghosh (Editor)

Neomacounia

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Kingdom
  
Plantae

Subclass
  
Bryidae

Family
  
Neckeraceae

Higher classification
  
Neomacounia

Division
  
Bryophyta

Order
  
Hypnales

Scientific name
  
Neomacounia nitida

Rank
  
Species

Neomacounia wwwregistrelepsararegistrygccaimagesphotoss

Genus
  
Neomacounia Ireland, 1974

Similar
  
Blutaparon rigidum, Byttneria ivorensis, Sporobolus durus, Crudia zeylanica

Neomacounia nitida (Macoun's shining moss) is an extinct moss that was found only in a small area of Ontario, and the sole species in the genus Neomacounia.

Contents

Biology

Macoun's shining moss was a large bryophyte with long greenish-brown tufts. The tufts were shiny and up to 6 cm long. The moss was hermaphroditic and capable of fertilizing itself.

The plant was an epiphyte. It lived near the base of tree trunks of various species of elm and cedar that grew in swampy areas. The only known location where this species occurred was in three locales near Belleville, Ontario.

Taxonomy

The species was originally described as Forsstroemia nitida. In 1974, it was reclassified in the monotypic genus Neomacounia. Not all bryologists accept that it is in a monotypic genus, or that it should be placed in the family Neckeraceae. Most recent publications accept the current classification of Macoun's shining moss. The common name honours John Macoun.

Extinction

The area where the samples were found was clear-cut for economic purposes between 1864 and 1892, implying that the species became extinct due to habitat loss during that time. Searches and surveys looking for the species were conducted in 1972 and 2001. They failed to find any evidence for the species' continued existence.

This species is the only known endemic Canadian plant to become extinct since the 16th century.

Specimens

All known samples of N. nitida were from three collections taken between 1862 and 1864. At least two of the collections were made by John Macoun. As Macoun had mislabelled other samples before, some doubt exists about from where they were taken.

References

Neomacounia Wikipedia