Superregnum: Eukaryota
Regnum: Fungi
Subregnum: Dikarya
Divisio: Ascomycota
Subdivisio: Pezizomycotina
Classis: Dothideomycetes
Ordo: Trypetheliales
Familia: Trypetheliaceae
Genus: Bathelium
Species: B. albidoporum – B. carolinianum – B. degenerans – B. endochryseum – B. feei – B. lineare – B. madreporiforme – B. mastoideum – B. sphaericum – B. tuberculosum
Name
Bathelium Ach., 1803
Type Species: Bathelium mastoideum Ach., 1803
Family: Trypetheliaceae
References
Primary
Ach., Method. Lich.: 111, pl. 8, f. 3. (1803)
Acharius, E. (1803) Methodus qua omnes detectos lichenes secundum organa carpomorpha ad genera, species et varietates redigere atque observationibus illustrare tentavit Erik Acharius (Methodus Lichenum). Cum tab. aen. - Stockholm. **[Mattick Rec.# 30921] - (Recent Literature on Lichens - Mattick No.)** (PDF file)
Secondary
Harris, R.C. (1995) More Florida Lichens. Including the 10ø Tour of the Pyrenolichens. - Publ. by the Author, Bronx, N.Y.. 192 pp. **[RLL List # 161 / Rec.# 7816] - (Recent Literature on Lichens)** (PDF file) (Bathelium: pp. 109-112)
Aptroot, André [From Flora of Australia volume 57 (2009)] Description of Bathelium.
Links
UDSA Plants Database
Index Fungorum
MycoBank
Vernacular names
Bathelium is a genus of lichen-forming fungi in the family Trypetheliaceae.[1]
Taxonomy
The genus was circumscribed in 1803 by Swedish lichenologist Erik Acharius, with Bathelium mastoideum assigned as the type species.[2]
Description
Genus Bathelium features a corticate thallus (a protective outer layer) usually with olive-green to brownish or greyish hues. This genus is distinguished by the form of its ascomata, the spore-producing structures, which possess apical ostioles (openings at the top). These ascomata can be found either singly or in groups, and often form pseudostromata, a stroma made of both thallus tissue and bits of host tissue. They are noticeable, ranging from prominent to sessile, and show a brown-black colouration, though in rare instances, they may have a whitish pruinose (powdery) appearance. This is complemented by a peripheral layer made up of tightly packed cells.[3]
Within the ascomata, the hamathecium, a tissue layer containing filamentous structures, is clear and hyaline (translucent). It comprises thin, interconnecting filaments known as paraphysoids. The ascospores number from one to eight per ascus. They are transversely septate to muriform (divided into compartments by cross walls), with thin septa and more or less angular lumina. These spores are fusiform, meaning they have a spindle-like shape, with either acute (pointed) or rounded ends, and are not constricted at the median septum. They appear hyaline, do not react to iodine (IKI−), and are encased in a gelatinous sheath.[3]
No conidiomata (structures responsible for asexual reproduction) have been identified in this genus. In terms of chemical properties, Bathelium frequently contains anthraquinones, compounds often present internally in pseudostromata. Lichexanthone, a fluorescent xanthone compound, is occasionally found within the genus.[3]
Species
Bathelium albidoporum (Makhija & Patw.) R.C.Harris (1995)
Bathelium austroafricanum (Zahlbr.) Aptroot & Lücking (2016)
Bathelium boliviense Flakus & Aptroot (2016)[4] – Bolivia
Bathelium carolinianum (Tuck.) R.C.Harris (1995)
Bathelium compositum (Vain.) C.W.Dodge (1953)
Bathelium connivens (Nyl.) Trevis. (1861)
Bathelium duplex (Fée) C.W.Dodge (1953)
Bathelium flavostiolatum Flakus & Aptroot (2016)[4] – Bolivia
Bathelium inspersomastoideum Flakus & Aptroot (2016)[4] – Bolivia
Bathelium lineare (C.W.Dodge) R.C.Harris (1995)
Bathelium madreporiforme (Eschw.) Trevis. (1852)
Bathelium mastoideum Afzel. ex Ach. (1803)
Bathelium megaleium Kremp. (1880)
Bathelium meristosporum Mont. & Bosch (1861)
Bathelium mirabile Flakus, Kukwa & Aptroot (2016)[4] – Bolivia
Bathelium nigroporum (Makhija & Patw.) Aptroot & Lücking (2016)
Bathelium oligosporum (Mont. & Bosch) Trevis. (1861)
Bathelium ostendatum (Kremp.) Müll.Arg. (1880)
Bathelium phaeomelodes Müll.Arg. (1885)
Bathelium porinosporum Lücking, M.P.Nelsen & Gueidan (2016)[5]
Bathelium pruinolucens Aptroot & Lücking (2016)
Bathelium pruinosum Flakus, Kukwa & Aptroot (2016)[4] – Bolivia
Bathelium sphaericum (C.W.Dodge) R.C.Harris (1995)
Bathelium subalbens (Nyl.) C.W.Dodge (1953)
Bathelium sundaicum Müll.Arg. (1891)
Bathelium tuberculosum (Makhija & Patw.) R.C.Harris (1995)
Bathelium varium (Fée) Trevis. (1861)
Bathelium velatum Müll.Arg. (1882)
References
Wijayawardene, Nalin; Hyde, Kevin; Al-Ani, Laith Khalil Tawfeeq; Somayeh, Dolatabadi; Stadler, Marc; Haelewaters, Danny; et al. (2020). "Outline of Fungi and fungus-like taxa". Mycosphere. 11: 1060–1456. doi:10.5943/mycosphere/11/1/8. hdl:10481/61998.
Acharius, E. (1803). Methodus qua Omnes Detectos Lichenes Secundum Organa Carpomorpha ad Genera, Species et Varietates Redigere atque Observationibus Illustrare Tentavit Erik Acharius (in Latin). Stockholm: impensis F.D.D. Ulrich. p. 111.
Aptroot, André; Lücking, Robert (2016). "A revisionary synopsis of the Trypetheliaceae (Ascomycota: Trypetheliales)". The Lichenologist. 48 (6): 763–982. doi:10.1017/s0024282916000487.
Flakus, Adam; Kukwa, Martin; Aptroot, André (2016). "Trypetheliaceae of Bolivia: an updated checklist with descriptions of twenty-four new species". The Lichenologist. 48 (6): 661–692. doi:10.1017/S0024282915000559.
Lücking, Robert; Nelsen, Matthew P.; Aptroot, André; Benatti, Michel Navarro; Binh, Nguyen Quoc; Gueidan, Cecile; Gutiérrez, Martha Cecilia; Jungbluth, Patricia; Lumbsch, H. Thorsten; Marcelli, Marcelo P.; Moncada, Bibiana; Naksuwankul, Khwanruan; Orozco, Thelma; Salazar-Allen, Noris; Upreti, Dalip K. (2016). "A pot-pourri of new species of Trypetheliaceae resulting from molecular phylogenetic studies". The Lichenologist. 48 (6): 639–660. doi:10.1017/S0024282916000475.
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