Parmotrema Lichen

Parmotrema hypotropum

Parmotrema hypotropum is a foliose lichen in the Parmeliaceae family.
Parmotrema Lichen This lichen was turning orange-red and white because it was dying. The orange-red color could be from norstictic acid in the medulla that is reacting with something as it dies. Geotagged,Parmotrema,Parmotrema Lichen,Parmotrema hypotropum,Spring,United States,lichen

Appearance

Thallus: foliose, adnate to loosely adnate, 3-15 cm in diameter

Lobes: subirregular, elongate, slightly imbricate, plane, separate, 8-15 mm wide

Apices: rotund, ciliate; cilia: sparse, 0.3-2.0 mm long; upper surface: gray with some blackened areas, smooth, dull to shiny, sometimes white pruinose, usually white maculate

Soredia: granular, common, in linear, marginal to submarginal, soralia

Isidia and Pustulae: absent

Medulla: white with continuous algal layer; lower surface: black with brown to mottled white naked zone peripherally, centrally rhizinate

Rhizines: scattered, simple

Apothecia: very rare
Lichen - Parmotrema hypotropum Habitat: Conifer branch Fresh: https://www.jungledragon.com/image/94215/lichen_-_parmotrema_hypotropum.html Geotagged,Parmotrema,Parmotrema Lichen,Parmotrema hypotropum,United States,Winter,lichen

Naming

Synonyms:
= Parmelia cetrata Ach. var. hypotropoides Nyl. ex Willey
= Parmelia hypotropa Nyl.
= Parmelia hypotropa Nyl. var. sorediata Müll. Arg.
Lichen - Parmotrema hypotropum Habitat: Conifer branch When dry: https://www.jungledragon.com/image/94194/lichen_-_parmotrema_hypotropum.html Geotagged,Parmotrema Lichen,Parmotrema hypotropum,United States,Winter,lichen,parmotrema

Distribution

Eastern USA and northwestern Mexico

References:

Some text fragments are auto parsed from Wikipedia.

http://eol.org/pages/6569639/details
Taxonomy
KingdomFungi
DivisionAscomycota
ClassLecanoromycetes
OrderLecanorales
FamilyParmeliaceae
GenusParmotrema
SpeciesParmotrema hypotropum
Photographed in
United States of America