Acarospora strigata
| Acarospora strigata | |
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| Species: | A. strigata
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| Acarospora strigata | |
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Acarospora strigata is an areolate to verruculous crustose lichen that grows on rock around the world, in full sun or shade, and in mesic to arid habitats.[1]: 220 [2] It is brown but may appear white or pale gray if it is covered in a pruina.[1]: 220 The lichen is common in southwestern deserts of North America.[2]
Areolas (from tiny to 3mm) surrounding dark reddish-brown to black apothecia are both highly variable in shape and size, and variable in size relative to each other.[1]: 220 [2] Measuring 0.1–1 mm, the apothecia range in size from small dots on the areolas to almost as wide as the areola.[1]: 220 [3] They can be pointlike to round, polygonal to stellate radiating fissures, and one to many per areola.[2] The lichen as a whole can thus appear as a collection of contiguous light rimmed dark circular forms, to a collection of whitish warts with dark dots.[citation needed]
Areoles may be cracked on the surface, especially toward the apothecia.[1]: 220
Lichen spot tests are all negative.[1]: 220 [2]
References
- ^ a b c d e f Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, ISBN 978-0-300-19500-2
- ^ a b c d e Acarospora strigata, Lichen Flora of the Greater Sonoran Desert Region. Vol 3, Nash, T.H., Ryan, B.D., Gries, C., Bugartz, F., (eds.) 2001, [1]
- ^ Lichen Flora of the Greater Sonoran Desert Region. Vol 3, Nash, T.H., Ryan, B.D., Gries, C., Bugartz, F., (eds.) 2001, [2]
External links
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