Heteroplacidium compactum
| Heteroplacidium compactum | |
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Scientific classification 
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| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Eurotiomycetes |
| Order: | Verrucariales |
| Family: | Verrucariaceae |
| Genus: | Heteroplacidium |
| Species: | H. compactum
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| Binomial name | |
| Heteroplacidium compactum | |
| Synonyms[2] | |
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List
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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.[3] 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.[4]
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,[2] it was transferred to Heteroplacidium in 2008 following molecular phylogenetic analysis of that genus.[5]
References
- ^ NatureServe. "Heteroplacidium compactum". NatureServe Explorer. Arlington, Virginia. Retrieved 5 July 2025.
- ^ 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.
- ^ 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.