Crittendenia

Genus of fungi

Crittendenia
Scientific classification
Domain:	Eukaryota
Kingdom:	Fungi
Division:	Basidiomycota
Class:	Agaricostilbomycetes
Order:	Agaricostilbales
Family:	Crittendeniaceae Millanes, Diederich & Wedin (2022)
Genus:	Crittendenia Diederich, Millanes, M.Westb., Etayo, J.C.Zamora & Wedin (2021)
Type species
Crittendenia coppinsii (P.Roberts) Diederich, M.Westb., Millanes & Wedin (2021)

Crittendenia is a genus of lichenicolous (lichen-dwelling) fungi in the monogeneric family Crittendeniaceae. The genus was circumscribed in 2021 to contain two species, C. lichenicola, and the type, C. coppinsii; these species were previously classified in the genus Chionosphaera. An additional 16 species were added to the genus the following year.^[1] The genus name honours British lichenologist Peter Crittenden.^[2]

Characteristics of Crittendenia include the tiny synnemata-like basidiomata, clamp connections, and aseptate tubular basidia from which 4–7 spores discharge passively, often in groups.^[2] The genus was originally considered to be of uncertain classification in the Agaricostilbomycetes;^[3] the family Crittendeniaceae was proposed in 2022 to contain the genus following molecular phylogenetic investigation.^[1]

Species

Crittendenia absistentis Diederich, Coppins & Millanes (2022)
Crittendenia bacidinae Diederich, van den Boom & Millanes (2022)
Crittendenia bryostigmatis Diederich & Tønsberg (2022)
Crittendenia byssolomatis Diederich, van den Boom & Millanes (2022)
Crittendenia coppinsii (P.Roberts) Diederich, M.Westb., Millanes & Wedin (2021)
Crittendenia crassitunicata Diederich & Etayo (2022)
Crittendenia heterodermiae Diederich, Etayo & Millanes (2022)
Crittendenia hypotrachynae Diederich, Etayo, van den Boom & Millanes (2022)
Crittendenia kakouettae Diederich, van den Boom & Millanes (2022)
Crittendenia lecanorae Diederich & Etayo (2022)
Crittendenia lecidellae Diederich, Etayo & Millanes (2022)
Crittendenia lichenicola (Alstrup, B.Sutton & Tønsberg) Diederich, Millanes & Wedin (2021)
Crittendenia lopadii Diederich, Holien & Tønsberg (2022)
Crittendenia parvispora Diederich, van den Boom & Millanes (2022)
Crittendenia physciiphila Diederich, Pinault, Etayo & Millanes (2022)
Crittendenia physconiae Diederich, J.C.Zamora & Millanes (2022)
Crittendenia stictae Diederich, Etayo & Millanes (2022)
Crittendenia teloschistis Diederich, Etayo, F.Berger & Millanes (2022)

References

^ ^a ^b Diederich, Paul; Millanes, Ana M.; Etayo, Javier; van den Boom, Pieter P.G.; Wedin, Mats (2022). "Finding the needle in the haystack: a revision of Crittendenia, a surprisingly diverse lichenicolous genus of Agaricostilbomycetes, Pucciniomycotina". The Bryologist. 125 (2): 248–293. doi:10.1639/0007-2745-125.2.248.
^ ^a ^b Millanes, Ana M.; Diederich, Paul; Westberg, Martin; Wedin, Mats (2021). "Crittendenia gen. nov., a new lichenicolous lineage in the Agaricostilbomycetes (Pucciniomycotina), and a review of the biology, phylogeny and classification of lichenicolous heterobasidiomycetes". The Lichenologist. 53 (1): 103–116. doi:10.1017/s002428292000033x. hdl:10115/28130.
^ Wijayawardene, N.N.; Hyde, K.D.; Dai, D.Q.; Sánchez-García, M.; Goto, B.T.; Saxena, R.K.; et al. (2022). "Outline of Fungi and fungus-like taxa – 2021". Mycosphere. 13 (1): 53–453. doi:10.5943/mycosphere/13/1/2. hdl:10481/76378.