Aspicilia cyanescens

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Aspicilia cyanescens
2016-06-28 Lichenostigma elongatum Nav.-Ros. & Hafellner 630390.jpg
Aspicilia cyanescens parasitized by the small fungus
Scientific classification edit
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Pertusariales
Family: Megasporaceae
Genus: Aspicilia
Species:
A. cyanescens
Binomial name
Aspicilia cyanescens
Owe-Larss. & A. Nordin

Aspicilia cyanescens (bluish sunken disk lichen) is a rough surfaced, bluish-tinged pale gray rimose to areolate crustose lichen, endemic to California.[1]: 226 [2] It mostly grows on rock.[1]: 226  It is unique among California members of its genus in that it can sometimes be found on growing on bark or wood, especially incense cedar and sometimes on white fir or giant sequoias in the central Sierra Nevada range and southern California mountains.[1]: 226  It has a black or bluish or greenish prothallus.[1]: 226  The prothallus is usually absent when growing on rock.[1]: 226  Each areole commonly has 1-7 roundish to angular apothecia that are .1 - 1.3 mm in diameter.[2] Apothecia have black to blue-black, concave to flat discs, without pruina.[2] Lichen spot tests are all negative.[1]: 226 

References[]

  1. ^ a b c d e f Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, ISBN 978-0-300-19500-2
  2. ^ a b c Aspicilia cyanescens,Lichen Flora of the Greater Sonoran Desert Region. Vol 3, Nash, T.H., Ryan, B.D., Gries, C., Bugartz, F., (eds.) 2001, [1]


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