Rhizoplaca peltata #

Taxon #

Rhizoplaca peltata

Organization #

Lobed-Crustose Lichens

Identification #

This species is similar morphologically to the other species of the genus. Rhizoplaca peltata has apothecia with disks that are tan to dull orange-brown, not as near-concolorous as the apothecia of R. melanopthalma with its respective thalli, and with apothecia which approach but are not so bright orange or pinkish as in R. chrysoleuca and R. subdiscrepans (CLH). R. peltata thalli are peltate, appearing at times almost like an Umbilicaria.

Substrate #

Saxicolous

Chemical Tests #

medulla: K-, C-, KC, PD+ orange (Brodo et al. 2001)

Notes #

Probably the least common of the known species of Rhizoplaca in Alaska.

Photos #