Porpidia

Porpidia is a genus of crustose lichens in the family Lecideaceae.

Taxonomy
Porpidia was circumscribed by the German lichenologist Gustav Wilhelm Körber in 1855, with Porpidia trullisata designated as the type species.

Species


, Species Fungorum accepts 38 species of Porpidia:
 * Porpidia albocaerulescens (Wulfen) Hertel & Knoph (1984)
 * Porpidia cinereoatra (Ach.) Hertel & Knoph (1984)
 * Porpidia contraponenda (Arnold) Knoph & Hertel (1984)
 * Porpidia crustulata (Ach.) Hertel & Knoph (1984)
 * Porpidia degelii (H.Magn.) Lendemer (2014)
 * Porpidia flavicunda (Ach.) Gowan (1989)
 * Porpidia flavocruenta Fryday & Buschbom (2005) - Austria, the British Isles, Scandinavia, Iceland, and North America (Alaska)
 * Porpidia grisea Gowan (1989)
 * Porpidia hydrophila (Fr.) Hertel & A.J.Schwab (1984)
 * Porpidia hypostictica L.Hu & Z.T.Zhao (2015) – China
 * Porpidia irrigua Orange (2014)
 * Porpidia islandica Fryday (2005) - Scotland and Iceland
 * Porpidia littoralis P.M.McCarthy & Elix (2018) – Australia
 * Porpidia lowiana Gowan (1989)
 * Porpidia macrocarpa (DC.) Hertel & A.J.Schwab (1984)
 * Porpidia melinodes (Körb.) Gowan & Ahti (1993)
 * Porpidia nadvornikiana (Vězda) Hertel (1984)
 * Porpidia navarina U.Rupr. & Türk (2016) – Chile
 * Porpidia ochrolemma (Vain.) Brodo & R.Sant. (1995)
 * Porpidia pachythallina Fryday (2005) - British Isles
 * Porpidia platycarpoides (Bagl.) Hertel (1987)
 * Porpidia rugosa (Taylor) Coppins & Fryday (2005)
 * Porpidia shangrila Xin Y.Wang & Lu L.Zhang (2012) – China
 * Porpidia soredizodes (Lamy) J.R.Laundon (1989)
 * Porpidia speirea (Ach.) Kremp. (1861)
 * Porpidia squamosa Xin Y.Wang & Lu L.Zhang (2012) – China
 * Porpidia stephanodes (Stirt.) Hertel (1984)
 * Porpidia striata Fryday (2005) - British Isles
 * Porpidia submelinodes Osyczka & Olech (2011) – Antarctica
 * Porpidia subsimplex (H.Magn.) Fryday (2006)
 * Porpidia superba (Körb.) Hertel & Knoph (1984)
 * Porpidia thomsonii Gowan (1989)
 * Porpidia trullisata (Kremp.) Körb. (1855)
 * Porpidia tuberculosa (Sm.) Hertel & Knoph (1984)
 * Porpidia ulleungdoensis S.Y.Kond., L.Lőkös & J.P.Halda (2019) – Ulleungdo, South Korea
 * Porpidia umbonifera (Müll.Arg.) Rambold (1989)
 * Porpidia vulcanoides Hertel & Fryday (2014)
 * Porpidia zeoroides (Anzi) Knoph & Hertel (1984)

In addition, one additional species is accepted by Mycobank:
 * Porpidia seakensis Fryday (2020) – Alaska