Heteroplacidium compactum

Heteroplacidium compactum
Scientific classification
Domain:	Eukaryota
Kingdom:	Fungi
Division:	Ascomycota
Class:	Eurotiomycetes
Order:	Verrucariales
Family:	Verrucariaceae
Genus:	Heteroplacidium
Species:	H. compactum
Binomial name
	Heteroplacidium compactum; (A.Massal.) Gueidan & Cl.Roux (2008)
Synonyms
	List Catapyrenium compactum (A.Massal.) R.Sant. (1984) ; Dermatocarpon compactum (A.Massal.) Lettau (1912) ; Endocarpon compactum (A.Massal.) Nyl. (1858) ; Endopyrenium compactum (A.Massal.) Körb. (1863) ; Placidium compactum A.Massal. (1856) ; Placocarpus compactus (A.Massal.) Trevis. (1860) ; Rhodocarpon compactum (A.Massal.) Lönnr. (1858) ; Verrucaria compacta (A.Massal.) Jatta (1900) ;

Heteroplacidium compactum is a species of areolate, crustose lichen in the family Verrucariaceae. It has a cosmopolitan distribution. It is a lichenicolous lichen, growing as a facultative parasite on other lichens, typically on non-calcareous rock. It has rod-shaped (bacilliform) conidia measuring 5–7 μm long, and ascospores that are 11–18 by 8–10 μm.^[2] Heteroplacidium zamenhofianum is a closely related species distinguished by having perithecia situated in the algal layer, and smaller ascospores (14–16 by 6–7 μm) with a more narrow ellipsoid shape.^[3]

The lichen was originally described in 1857 by Italian lichenologist Abramo Bartolommeo Massalongo as Placidium compactum. After having been shuffled to various genera in its taxonomic history,^[1] it was transferred to Heteroplacidium in 2008 following molecular phylogenetic analysis of that genus.^[4]

References

^ ^a ^b "Synonymy. Current Name: Heteroplacidium compactum (A. Massal.) Gueidan & Cl. Roux, Bull. Inf. Ass. Franç. Lichén. 33(1): 25 (2008)". Species Fungorum. Retrieved 9 September 2022.
^ Prieto, María; AraGgón, Gregorio; Martínez, Isabel (2010). "The genus Catapyrenium s. lat. (Verrucariaceae) in the Iberian Peninsula and the Balearic Islands". The Lichenologist. 42 (6): 637–684. doi:10.1017/s0024282910000319.
^ Urbanavichus, Gennadii; Urbanavichene, Irina (2013). "New records of pyrenocarpous lichens from the NW Caucasus (Russia)". Herzogia. 26 (1): 123–129. doi:10.13158/heia.26.1.2013.123.
^ Roux, C. (2008). "Likenoj de Okcidenta Europo. Suplemento 4a : eltirajoj 2 (extraits 2). Korektendoj (errata)". Bulletin d'informations de l'Association française de lichénologie. 33 (1): 25.

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