Fungi > Ascomycota > Lecanoromycetes > Peltigerales > Collemataceae > Collema > Collema nigrescens

Collema nigrescens (jelly lichen)


Wikipedia Abstract

Collema nigrescens is a leafy (foliose) jelly lichen (Collema genus) found growing on the bark of trees such as bigleaf maples, in wetter coastal parts of California. It is commonly called button jelly lichen or bat's wing lichen. It is blackish-green when wet, and dark brownish-green to dark olive when dry. The photosyntheic partner is the Nostoc cyanobacterium that is spread throughout the thallus (main body part). Although foliose in form, like all jelly lichens, the thallus is not differentiated, lacking layers or an upper or lower cortex (lichen) and the cyanobacteria is spread throughout the thallus. It has dark purple-brown apothecia all over. It produces no reaction to lichen spot tests.
View Wikipedia Record: Collema nigrescens



Structure [1]  Lichen

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Attributes / relations provided by
1USDA Plants Database, U. S. Department of Agriculture
Abstract provided by DBpedia licensed under a Creative Commons License
Species taxanomy provided by GBIF Secretariat (2019). GBIF Backbone Taxonomy. Checklist dataset accessed via on 2020-03-21; License: CC BY 4.0