"

Vulpicida canadensis (Räsänen) J.-E. Mattsson & M. J. Lai, 1993

Common name Brown-eyed Sunshine
Code VULPCAN
Field Characters Small, leafy chlorolichen. Thalli bright yellow, composed of frilly, ruffled, or wrinkled lobes, loosely attached to ascending. Upper cortex wrinkled, to 1 cm wide. Lower cortex pale yellow to bright yellow to darkening centrally, with sparse rhizines. Medulla yellow. Vegetative propagules absent, apothecia and pycnidia common. Apothecia with a dark brown disc.
Similar species & genera
Vulpicida pinastri: sorediate, not fertile.

Polycaulionia, Xanthomendoza, Xanthoria: orange due to anthraquinones. Shade forms may be tricky to diagnose, but the K+ purple reaction of these genera will help.

Ecology Epiphytic or on downed wood, rare in the mountains and boreal regions of Alberta
Chemistry All spot tests apparently negative. The cortices are KC+Y (usnic acid) but the reaction is very difficult to observe due to the yellow color. Medulla with vulpinic and pinastric acids (all spot tests negative).
Molecular support
Links
Gallery

License

Icon for the Creative Commons Attribution-NonCommercial 4.0 International License

Lichens of Alberta Copyright © by Diane L. Haughland is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License, except where otherwise noted.