Summary[edit] Description: English: The lichen Physciella chloantha (Ach.) Essl. Found in Crescenta Valley Community Regional Park, La Crescenta, California, USA. See Mushroom Observer page for for collection notes. Date: 28 August 2008. Source: : This image is Image Number 18810 at Mushroom Observer, a source for mycological images. This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing. English | español | français | italiano | македонски | മലയാളം | português | +/−. Author: Jason Hollinger.