Andreaea rothii

Andreaea rothii, or Roth's andreaea moss,[1] is a species of moss in the family Andreaeaceae native to North America and parts of Europe.[2][3] This plant was described in 1807 by Weber and Mohr.[3]

Andreaea rothii
In British Columbia, Canada
Scientific classification
Kingdom: Plantae
Division: Bryophyta
Subdivision: Andreaeophytina
Class: Andreaeopsida
Order: Andreaeales
Family: Andreaeaceae
Genus: Andreaea
Species:
A. rothii
Binomial name
Andreaea rothii
F.Weber & D.Mohr

Description

Andreaea rothii gametophytes sometimes form extensive black to brown cushion-like patches,[4][3] with individual shoots erect and less than 2 cm tall.[4] The leaves of Andreaea rothii are 1-2 cm wide, and have a strong costa,[4][5] which is roughly synonymous to a midrib. The leaves can be falcate-secund, curving to one side of the plant.[4][3][5] This is especially true when wet, however the plants do not alter much when dry.[4] The outline of the leaf is pear-shaped, swelling at the base and tapering to a tip,[4][3] and can also be strongly curved depending on subspecies.[4]

Distribution

Andreaea rothii grows on rocks that are wet, acidic, and exposed.[3][4] This species is found anywhere from areas of high elevation to sea-level.[4][3]

Reproduction

Andreae rothii gametophytes can be gonioautoicous—meaning the antheridia are bud-like in the axil of an archegonial branch—or cladautoicous—meaning the antheridia and archegonia are found on different branches of the same plant.[5] Like all of the Andreaeaceae, sporangia are elevated on a pseudopodium,[6] a structure resembling a seta but composed of gametophyte tissue rather than sporophyte tissue. The sporangia will dehisce longitudinally, forming slits through which spores are dispersed.[6][7] This pattern of dehiscence gives the genus its common name: "Lantern mosses".

References
  1. "Plants Profile for Andreaea rothii (Roth's andreaea moss)". plants.usda.gov. Retrieved 2020-03-16.
  2. "Roth's andreaea moss maps - Encyclopedia of Life". eol.org. Retrieved 2020-03-16.
  3. "Andreaea rothii in Flora of North America". www.efloras.org. Retrieved 2019-04-20.
  4. Rothero, Gordon (2010). "Andreaea rothii subsp. falcata / subsp. rothii". In Atherton, Ian; Bosanquet, Sam; Lawley, Mark (eds.). Mosses and Liverworts of Britain and Ireland: A Field Guide. United Kingdom: British Bryological Society. p. 314. ISBN 978-0-9561310-1-0.
  5. "Andreaea rothii in Flora of North America @ efloras.org". www.efloras.org. Retrieved 2020-04-25.
  6. "California Moss eFlora key to Andreaea". ucjeps.berkeley.edu. Retrieved 2020-03-16.
  7. "Andreaeaceae". eFlora of North America.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.