Haematomma fluorescens

Haematomma fluorescens
Scientific classification
Domain:	Eukaryota
Kingdom:	Fungi
Division:	Ascomycota
Class:	Lecanoromycetes
Order:	Lecanorales
Family:	Haematommataceae
Genus:	Haematomma
Species:	H. fluorescens
Binomial name
	Haematomma fluorescens; Kalb & Staiger (1995)
Varieties
	H. fluorescens var. longisporum Nelsen, Lücking & E.Navarro (2006)

Haematomma fluorescens is a species of corticolous (bark-dwelling) and crustose lichen in the family Haematommataceae. Found in the neotropics, it was formally described as a new species in 1995 by lichenologists Klaus Kalb and Bettina Staiger. The type specimen was collected in the cordillera of Piribebuy in Paraguay; here it was found growing on the bark of Cinchona. The specific epithet refers to the fluorescence observed when the lichen is shone with a UV light; this is caused by the secondary compound known as lichexanthone. This compound readily distinguishes it from other members of Haematomma.[1] The lichen also contains russulone.[2] The variety Haematomma fluorescens var. longisporum, found in Costa Rica, was proposed in 2006. It differs from the nominal variety in having long ascospores that are 18–20 times as long as broad (measuring 75–120 by 4–6 μm) and in the number of septa (13–27).[3] Haematomma fluorescens has been reported to occur in Costa Rica, Argentina, Bolivia, Brazil, Paraguay, and Venezuela.[1]

References

Messuti, María I.; de la Rosa, Iris N. (2009). "Notes on the genus Haematomma (Ascomycota, Lecanoraceae) in Argentina". Darwiniana. Nueva serie. 47 (2): 297–308. JSTOR 23230189.
Kalb, Klaus; Bettina, Staiger (1995). Haematomma-Studien. Bibliotheca Lichenologica (in German). Vol. 59. p. 114. ISBN 978-3-443-58038-4.
Nelsen, Matthew P.; Lücking, Robert; Chaves, José Luis; Sipman, Harrie J.M.; Umaña, Loengrin; Navarro, Enia (2006). "A first assessment of the Ticolichen biodiversity inventory in Costa Rica: the genus Haematomma (Lecanorales: Lecanoraceae)". The Lichenologist. 38 (3): 251–262. doi:10.1017/s0024282906005573. S2CID 85729439.

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[Messuti_&_de_la_Rosa_2009-1] Messuti, María I.; de la Rosa, Iris N. (2009). "Notes on the genus Haematomma (Ascomycota, Lecanoraceae) in Argentina". Darwiniana. Nueva serie. 47 (2): 297–308. JSTOR 23230189.

[Klaus_&_Staiger_1995-2] Kalb, Klaus; Bettina, Staiger (1995). Haematomma-Studien. Bibliotheca Lichenologica (in German). Vol. 59. p. 114. ISBN 978-3-443-58038-4.

[Nelsen_et_al._2006-3] Nelsen, Matthew P.; Lücking, Robert; Chaves, José Luis; Sipman, Harrie J.M.; Umaña, Loengrin; Navarro, Enia (2006). "A first assessment of the Ticolichen biodiversity inventory in Costa Rica: the genus Haematomma (Lecanorales: Lecanoraceae)". The Lichenologist. 38 (3): 251–262. doi:10.1017/s0024282906005573. S2CID 85729439.