Bogoriella apposita

Bogoriella apposita
Scientific classification
Kingdom:	Fungi
Division:	Ascomycota
Class:	Dothideomycetes
Order:	Trypetheliales
Family:	Trypetheliaceae
Genus:	Bogoriella
Species:	B. apposita
Binomial name
Bogoriella apposita (Nyl.) Aptroot & Lücking (2016)
Synonyms [1]
Verrucaria appositaNyl. (1863) Microthelia apposita(Nyl.) Müll.Arg. (1883) Arthopyrenia apposita(Nyl.) H.Olivier (1902) Mycomicrothelia apposita(Nyl.) D.Hawksw. (1985)

Bogoriella apposita is a species of corticolous (bark-dwelling) crustose lichen in the family Trypetheliaceae. ^[2] Found in Colombia, this neotropical lichen forms whitish crusty patches on surfaces and produces small, dark fruiting bodies that break through the lichen's surface. It can be distinguished from similar species by its distinctive reddish-brown, warty spores that are divided into two unequal compartments.

Taxonomy

The species was first described in 1863 by William Nylander as Verrucaria apposita, based on material collected in Colombia. ^[3] It was later transferred to several different genera, appearing as Arthopyrenia apposita in 1902, ^[4] Microthelia apposita in 1903, ^[5] and Mycomicrothelia apposita in 1985. ^[6] In 2016, André Aptroot and Robert Lücking reassigned the species to the genus Bogoriella , giving it its current name, Bogoriella apposita. The holotype specimen, collected by Alejandro Lindig in Choachí, Colombia, is preserved in Nylander's herbarium (H-Nyl 702). ^[7]

In their 2016 revision of the Trypetheliaceae, Aptroot and Lücking mention the similarity between B. apposita, B. obovata and B. thelena , and note that B. thelena has priority if it is later determined that they are the same species. ^[7]

Description

Bogoriella apposita has a whitish thallus that lacks any visible prothallus lines. Its fruiting bodies (ascomata) are small, about 0.4 mm across and 0.15–0.20 mm tall, and break through the surface of the thallus. Each has a wall 40–80  micrometres (μm) thick and contains asci measuring 90–120 by 14–16 μm. The ascospores are reddish brown, warty in texture, and divided into two compartments with the upper one larger. They are typically 24–28 μm long (rarely as short as 22 μm or as long as nearly 30 μm) and 9–11.5 μm wide (with extremes between 8.5 and 12.5 μm). The spores have narrowed ends. No asexual reproductive structures (pycnidia) are present. Standard chemical spot tests (UV, K) are negative, and thin-layer chromatography reveals no detectable secondary metabolites. ^[7]

Distribution

Bogoriella apposita is found in Colombia. ^[7]

References

1. "GSD Species Synonymy. Current Name: Bogoriella apposita (Nyl.) Aptroot & Lücking, Lichenologist 48(6): 908 (2016)". Species Fungorum . Retrieved September 1, 2025.
2. "Bogoriella apposita (Nyl.) Aptroot & Lücking". Catalogue of Life . Species 2000: Leiden, the Netherlands. Retrieved September 1, 2025.
3. Nylander, W. (1863). "Lichenographia Novogranatensis prodromus". Acta Societatis Scientiarum Fennicae (in Latin). 7 (2): 415–504 [492].
4. Olivier, H. (1902). Exposé Systématique et Descriptions des Lichens de l'Ouest et du Nord-Ouest de la France (Normandie, Bretagne, Anjou, Maine, Vendée) (PDF) (in French). Vol. 2. pp. 173–269 [258].
5. Boistel, A. (1903). Nouvelle Flore des Lichens, II. partie (parte scientifique) servant a la détermination de toutes les espèces, variétés et formes signalées en France, avec leurs caractéres microscopiques et leurs réactions chimique, duodecimo [New Flora of Lichens, Part II (scientific part) serving for the determination of all species, varieties and forms recorded in France, with their microscopic characters and their chemical reactions, duodecimo] (in French). Vol. 2. p. 288.
6. Hawksworth, D.L. (1985). "A redisposition of the species referred to the ascomycete genus Microthelia". Bulletin of the British Museum for Natural History. 14 (2): 43–181 [68].
7. Aptroot, André; Lücking, Robert (2016). "A revisionary synopsis of the Trypetheliaceae (Ascomycota: Trypetheliales )". The Lichenologist. 48 (6): 763–982. doi: 10.1017/S0024282916000487 . ISSN   0024-2829.