Parmotrema abessinicum

Parmotrema abessinicum is a species of corticolous lichen in the family Parmeliaceae. It has been recorded from Africa, Asia, and Oceania.

Parmotrema abessinicum
Scientific classification
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Lecanorales
Family: Parmeliaceae
Genus: Parmotrema
Species:
P. abessinicum
Binomial name
Parmotrema abessinicum
(Nyl. ex Kremp.) Hale (1974)
Synonyms[1]
  • Parmelia abessinica Nyl. ex Kremp. (1877)

Taxonomy

The lichen was first described scientifically in 1887 by German lichenologist August von Krempelhuber as a species of Parmelia.[2] Mason Hale transferred it to the genus Parmotrema in 1974.[3] The specific epithet abessinica is derived from the Latin abessinicus (meaning "from or belonging to Ethiopia")[1] and refers to the location of its holotype collection. It has also been recorded from Madagascar,[4] Rwanda,[5] India,[6] Sri Lanka,[7] and Fiji.[8]

Description

The thallus is loosely attached to its substratum, and measures 5–7 cm (2.0–2.8 in) across. Its lobes are thick, with a scalloped (crenate) margin, and typically measure 5–10 mm wide. The margins have simple, unbranched cilia up to 3 mm long.[9] Distinguishing morphological characteristics of Parmotrema abessinicum include its ciliate lobe margins, perforate apothecia, and simple rhizines in the thallus centre. It contains the secondary compounds atranorin, norlobaridone, loxodin and protolichesterinic acid.[8] The ascospores of this species are simple and colourless, measuring 15–25 by 8–13 μm.[9]

See also

References
  1. "Parmelia abessinica Nyl. ex Kremp". MycoBank. Retrieved 24 April 2020.
  2. Krempelhuber, A. von. (1877). "Neue Beiträge zu Afrika's Flechten-Flora". Linnaea (in German). 41: 135–144.
  3. Hale, Mason E. (1974). "New combinations in the lichen genus Parmotrema Massalongo". Phytologia. 28 (4): 334–339.
  4. Aptroot, Andre (2016). "Preliminary checklist of the lichens of Madagascar, with two new thelotremoid Graphidaceae and 131 new records". Willdenowia. 46 (3): 349–365. doi:10.3372/wi.46.46304. S2CID 88962717.
  5. Killmann, Dorothee; Fischer, Eberhard (2005). "New records for the lichen flora of Rwanda, East Africa". Willdenowia. 35 (1): 193–204. doi:10.3372/wi.35.35116.
  6. Araveeti, Madhu Reddy; Nayaka, Sanjeeva; Shankar, P Chandramati (2011). "New distributional records and checklist of lichens for Andhra Pradesh, India". Indian Forester. 137 (12): 1371–1376.
  7. Weerakoon, Gothamie; Aptroot, Andre (2014). "Over 200 new lichen records from Sri Lanka, with three new species to science". Cryptogamie, Mycologie. 35 (1): 51–62. doi:10.7872/crym.v35.iss1.2014.51. S2CID 85091814.
  8. Lumbsch, H. Thorsten; Lücking, Robert; Divakar, Pradeep; Konrat, Matt von; Naikatini, Alifereti (2011). "New records of lichen-forming fungi from Fiji" (PDF). Telopea. 13 (3): 375–404. doi:10.7751/telopea20116029.
  9. Mishra, Gaurav K.; Upreti, Dalip K. (2017). "The lichen genus Parmotrema A. Massal. (Lecanorales, Ascomycota) from India with addition distributional records". Cryptogam Biodiversity and Assessment. 2 (2): 18–40. doi:10.21756/cab.v2i02.11117.
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