Andreaea rothii | |
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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 | |
Synonyms [2] | |
Andreaea rothii, or Roth's andreaea moss, [3] is a species of moss in the family Andreaeaceae native to North America and parts of Europe. [4] [5] This plant was described in 1807 by Weber and Mohr. [5]
Andreaea rothii gametophytes sometimes form extensive black to brown cushion-like patches, [6] [5] with individual shoots erect and less than 2 cm tall. [6] The leaves of Andreaea rothii are 1-2 cm wide, and have a strong costa, [6] [7] which is roughly synonymous to a midrib. The leaves can be falcate-secund, curving to one side of the plant. [6] [5] [7] This is especially true when wet, however the plants do not alter much when dry. [6] The outline of the leaf is pear-shaped, swelling at the base and tapering to a tip, [6] [5] and can also be strongly curved depending on subspecies. [6]
Andreaea rothii grows on rocks that are wet, acidic, and exposed. [5] [6] This species is found anywhere from areas of high elevation to sea-level. [6] [5]
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. [7] Like all of the Andreaeaceae, sporangia are elevated on a pseudopodium, [8] 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. [8] [9] This pattern of dehiscence gives the genus its common name: "Lantern mosses".