Brief Summary

Read full entry

Description

 Life habit: lichenicolous, on thallus of Physcia species; Thallus: not apparent, with hyaline vegetative hyphae; photobiont: absent; Ascomata: single or fusing to small groups, developing superficially, without host remnants on the surface, sessile, 0.1-0.24 mm in diam.,; disc: black, convex, with smooth to rough surface; epihymenium: olivaceous brown, 10-15 µm thick, with disintegrating uppermost hyphae; hymenium: hyaline, 40-50 µm tall, interascal hyphae 2 µm wide; subhymenium: medium brown, 50-70 µm thick, with cloddy pigments in intercellular spaces; asci: clavate, 30-40 x 14-17 µm, 8-spored, lateral walls not thickened; ascospores: hyaline, 1-septate, obovate, lower cell attenuated, smooth, 14-16 x 5-7 µm, without an epispore; Pycnidia: not seen; Chemical reactions: ascomatal gels I+ red, KI+ blue; asci with KI+ blue ring-structure.; Substrate and ecology: see host; World distribution: subcosmopolitan; Sonoran distribution: Arizona (San Francisco Peaks) and eastern Sonora (Sierra Madre Occidental).; Note: Arthonia epiphyscia is distinguished from Arthonia phaeophyscia by its superficially developing ascomata. 

Trusted

Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© Lichen Unlimited: Arizona State University, Tempe.

Source: Lichen Flora of the Greater Sonoran Desert Region

Belongs to 0 communities

This taxon hasn't been featured in any communities yet.

Learn more about Communities

Disclaimer

EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!