Physcia tenella #

Taxon #

Physcia tenella

Organization #

Physciaceae

Identification #

White to light green thalli of slender lobes with light colored sorediaPhyscia tenella is morphologically similar to P. adscendens but does not form hood-shaped soralia. Specimens on rock can appear similar to Physcia subtilis but that species has soredioid granules rather than true soredia (Esslinger 2017). Ramicolous specimens can look like a species of Heteroderma or Anaptychia, but the hyphae in the upper cortex of those species are parallelly aligned (Kurokawa 1962 in CLH).

Substrate #

Corticolous, ramicolous, saxicolous (Brodo et al. 2001)

Chemical Tests #

medulla: K- (Brodo et al. 2001)

Kurokawa, S. 1962 #

A monograph of the genus Anaptychia. Beihefte zur Nova Hedwigia 6: 1–115.