WebLichen Flora of the Greater Sonoran Desert Region. Vol 2. Thallus: foliose, medium sized, to 8 cm; lobate lobes: plane, linear to subirregular, spreading, 4-7 mm upper surface: bluish … WebAnother widespread and pollution-tolerant species found on tree trunks in Gardiner is Punctelia rudecta, or the rough speckled shield lichen. A more muted greyish blue-green than the bright green rock greenshield, it can be most easily identified by the white spots which speckle its upper surface, hence its name.
Punctelia rudecta – rough speckled shield lichen - Texas …
http://ianadamsphotography.com/news/shield-lichens-at-west-woods-geauga-county/ WebPunctelia rudecta, commonly known as the rough speckled shield or the speckleback lichen, is a North American species of foliose lichen in the family Parmeliaceae. This species can … gem mining columbus ohio
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WebPunctelia bolliana, the eastern speckled shield lichen, is a species of foliose lichen in the family Parmeliaceae.It is found in North America, with a distribution extending from the Canadian province of Ontario south to the central and northeastern United States and Mexico. It grows on the bark of both deciduous trees and coniferous trees. The … WebStar rosette lichen; Rough speckled shield lichen; FRUITICOSE. Turban lichen; MAILING ADDRESS Howard County Bird Club P O Box 1323 Columbia, MD 21044. A 501(c)3 organization whose mission is to promote the knowledge, development, protection, and conservation of bird life and other naturally occurring species and their habitats. Punctelia rudecta, commonly known as the rough speckled shield or the speckleback lichen, is a North American species of foliose lichen in the family Parmeliaceae. This species can be readily identified by the light color of the thallus underside, the relatively large lobes at the edges of the thallus, and the tiny white … See more Swedish lichenologist Erik Acharius described the lichen as a new species in 1814 as Parmelia rudecta. The type specimen was collected by American clergyman and botanist Gotthilf Heinrich Ernst Muhlenberg. … See more Punctelia rudecta has a temperate distribution in North America. Although the range maps included in some popular North American lichen field guides suggest that it does not … See more Based on the frequency of Punctelia rudecta in heavily polluted areas, it is considered a relatively pollution-tolerant species, although it is sensitive to ambient sulfur dioxide (SO2), … See more The thallus of Punctelia rudecta ranges in color from dark greenish-gray to almost blue-gray; it tends to be more gray-greenish when fresh, and more brown-yellowish when dry. The thallus has a relatively tight attachment to its substrate. The lobes … See more Punctelia rudecta has an annual radial (i.e., expanding outward from the center) growth rate of about 5 mm (0.2 in) per year, similar to other … See more Punctelia rudecta can be used to create a dye by a color-extraction with ammonia as a solvent. A pink color is obtained using this method. See more deactivate instagram from iphone