Heteroplacidium is a genus of lichen-forming fungi in the family Verrucariaceae.[1] The genus was circumscribed by Austrian lichenologist Othmar Breuss in 1996 with Heteroplacidium imbricatum assigned as the type species. It was proposed as a segregate of Catapyrenium.[2] Other morphologically similar genera are Neocatapyrenium, Placidium, and Scleropyrenium, although molecular phylogenetic analyses indicate that they are independent monophyletic lineages within the Verrucariaceae.[3][4]

Heteroplacidium
Heteroplacidium fusculum
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Eurotiomycetes
Order: Verrucariales
Family: Verrucariaceae
Genus: Heteroplacidium
Breuss (1996)
Type species
Heteroplacidium imbricatum
(Nyl.) Breuss (1996)

Most Heteroplacidium species are autonomous lichens, generally crustose and areolate. Four species in the genus are obligate parasites or facultatively lichenicolousH. compactum, H. fusculum, H. transmutans, and H. zamenhofianum.[5]

Species edit

References edit

  1. ^ Wijayawardene, N.N.; Hyde, K.D.; Dai, D.Q.; Sánchez-García, M.; Goto, B.T.; Saxena, R.K.; et al. (2022). "Outline of Fungi and fungus-like taxa – 2021". Mycosphere. 13 (1): 53–453. doi:10.5943/mycosphere/13/1/2. hdl:10481/76378. S2CID 249054641.
  2. ^ Breuss, O. (1996). "Ein verfeinertes Gliederungskonzept für Catapyrenium (lichenisierte Ascomyceten, Verrucariaceae)". Annalen des Naturhistorischen Museums Wien (in German). 98(Suppl.): 35–50.
  3. ^ Gueidan, Cécile; Roux, Claude; Lutzoni, François (2007). "Using a multigene phylogenetic analysis to assess generic delineation and character evolution in Verrucariaceae (Verrucariales, Ascomycota)". Mycological Research. 111 (10): 1145–1168. doi:10.1016/j.mycres.2007.08.010. PMID 17981450.
  4. ^ Prieto, María; Martínez, Isabel; Aragón, Gregorio; Otálora, Mónica A.G.; Lutzoni, François (2010). "Phylogenetic study of Catapyrenium s. str. (Verrucariaceae, lichen-forming Ascomycota) and related genus Placidiopsis". Mycologia. 102 (2): 291–304. doi:10.3852/09-168. PMID 20361497. S2CID 9769822.
  5. ^ a b Knudsen, Kerry; Bruess, Othmar; Kocourková, Jana (2014). "A new lichenicolous Heteroplacidium (Verrucariaceae) from the deserts of southern California". Opuscula Philolichenum. 13 (26): 26–33.