| 词条 | Rhizoplaca chrysoleuca |
| 释义 |
| image = Rhizoplaca chrysoleuca 45084.jpg | image_width = 240px | image_caption = | regnum = Fungi | divisio = Ascomycota | classis = Lecanoromycetes | ordo = Lecanorales | familia = Lecanoraceae | genus = Rhizoplaca | species = R. chrysoleuca | binomial = Rhizoplaca chrysoleuca | binomial_authority = (Sm.) Zopf (1905) | synonyms = *Lichen chrysoleucus Sm. (1791) }} Rhizoplaca chrysoleuca (rock-posy lichen, rockbright) is a pale yellowish-green to gray-green umbillicate foiliose lichen .[1][1] It was first described in 1791 by English botanist Sir James Edward Smith as Lichen chrysoleucus; Friedrich Wilhelm Zopf transferred it to the genus Rhizoplaca in 1905. The single-leaf (monophyllous) umbillicate thallus can be 2–3.5 cm in width, with deep lobes.[1] The thallus is relatively thick and lumpy with warts and lobules.[1] The fruiting structures (apothecia have lightly pruinose, burnt-orange to tan discs rimmed, with a contrasting rim of pale greenish thallus-like tissue making them easy to identify.[1] Apothecia are 0.8–2.5 mm diameter, and often numerous and crowded into each other.[1] It grows in Eurasia and western North America. In the Sonoran Desert region it grows at elevations from {{convert|1200|to|3200|m|ft}}.[1] It prefers siliceous rock, granite, schist, quartz, mica, and basalt, but is also found on sandstone and less commonly on calcareous rock.[1] It grows from the high desert to the alpine zone.[1] It is often nitrophilous,[1] preferring dropping areas under bird perches.{{citation needed|date=October 2014}} It is common on rock in inland arid mountain and desert habitats in California.[2]{{rp|118}} Lichen spot tests are K+ yellow or K-, KC+ yellow-orange, C-, and P- on the cortex, and K-, KC+ red or KC-, C-, and P+ yellow or P- on the medulla.[2]References1. ^1 2 3 4 5 6 Lichen Flora of the Greater Sonoran Desert Region, Vol 1, Nash, T.H., Ryan, B.D., Gries, C., Bugartz, F., (eds.) 2001, 2. ^1 2 3 4 Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, {{ISBN|978-0-300-19500-2}} External links
4 : Fungi described in 1791|Fungi of Asia|Fungi of North America|Lecanoraceae |
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