|
Physciaceae
Physcia tenella Chemical results: Thallus K+ yellow. Medulla K- A pioneer species on nutrient-rich branches and twigs, occasional on rock. Associated lichenicolous fungi include Illosporiopsis christiansenii, Syzygospora physciacearum, Tubeufia heterodermiae, Lichenoconium lichenicola Marchandiomyces corallinus and M. aurantiacus Small, +/- erect, grey-white lobes (greener when wet) with small pseudocyphellae and long, whitish cilia. Lobe ends split revealing lip-shaped, creamy soralia. Dark brown-black, pruinose apothecia. Micro photo below. Similar: Physcia adscendens. Hood-shaped lobe tips. Physcia dubia. Pseudocyphellae and cilia absent, acidic substrates |
