''Geosmithia'' is a genus of

anamorph In mycology, the terms teleomorph, anamorph, and holomorph apply to portions of the life cycles of fungi in the phyla Ascomycota and Basidiomycota: *Teleomorph: the sexual reproductive stage (morph), typically a fruiting body. *Anamorph: an ase ...

ic fungi of uncertain

familial Familial may refer to: * ''Familial'' (album), a 2010 studio album by Phil Selway *Family, a group of people affiliated by consanguinity, affinity, or co-residence *Family (biology), one of the eight major taxonomic ranks, classified between orde ...

placement in the order

Hypocreales The Hypocreales are an order of fungi within the class Sordariomycetes. In 2008, it was estimated that it contained some 237 genera, and 2647 species in seven families. Since then, a considerable number of further taxa have been identified, in ...

. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, but several new species have since been described. Thousand cankers disease, which affects economically important

black walnut ''Juglans nigra'', the eastern American black walnut, is a species of deciduous tree in the walnut family, Juglandaceae, native to North America. It grows mostly in riparian zones, from southern Ontario, west to southeast South Dakota, south t ...

(''Juglans nigra'') populations in North America, is caused by ''

Geosmithia morbida ''Geosmithia morbida'' is a species of anamorphic fungus in the Bionectriaceae family that, together with the activity of the walnut twig beetle, causes thousand cankers disease in species of walnut trees (''Juglans spp.''). It was described as ...

''. Species in the genus are generally similar to those in '' Penicillium'', but can be distinguished from them by forming cylindrical

conidia A conidium ( ; ), sometimes termed an asexual chlamydospore or chlamydoconidium (), is an asexual, non-motile spore of a fungus. The word ''conidium'' comes from the Ancient Greek word for dust, ('). They are also called mitospores due to the ...

from rough-walled phialides. Additionally, the conidia of ''Geosmithia'' do not have a green color, in contrast to the characteristic blue-grey or green-grey conidia of ''Penicillium''. Some ''Geosmithia'' species have

teleomorphic In mycology, the terms teleomorph, anamorph, and holomorph apply to portions of the life cycles of fungi in the phyla Ascomycota and Basidiomycota: *Teleomorph: the sexual reproductive stage (morph), typically a fruiting body. *Anamorph: an ase ...

forms that are classified in the genus '' Talaromyces''. However, ''Geosmithia'' is a polyphyletic taxon with evolutionary affinities to at least three groups of the euascomycete lineage within the Ascomycota. The generic name ''Geosmithia'' honors British mycologist George Smith.

Species

As accepted by Species Fungorum; *''

Geosmithia brunnea ''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, ...

'' *''

Geosmithia carolliae ''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, ...

'' *''

Geosmithia cnesini ''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, ...

'' *''

Geosmithia eburnea ''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, ...

'' *''

Geosmithia emersonii ''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, ...

'' *''

Geosmithia eupagioceri ''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, ...

'' *''

Geosmithia fassatiae ''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, ...

'' *''

Geosmithia flava ''Geosmithia'' is a genus of anamorphic fungi of uncertain family (biology), familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten speci ...

'' *''

Geosmithia langdonii ''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, ...

'' *''

Geosmithia lavendula ''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, ...

'' *''

Geosmithia malachitea ''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, ...

'' *''

Geosmithia microcorthyli ''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, ...

'' *''

Geosmithia namyslowskii ''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, ...

'' *''

Geosmithia obscura ''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, ...

'' *''

Geosmithia omnicola Pepori ''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, ...

'' *''

Geosmithia proliferans ''Geosmithia'' is a genus of anamorphic fungi of uncertain family (biology), familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten speci ...

'' *'' Geosmithia putterillii'' *''

Geosmithia rufescens ''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, ...

'' *''

Geosmithia swiftii ''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, ...

'' *''

Geosmithia tibetensis ''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, ...

'' *''

Geosmithia ulmacea ''Geosmithia'' is a genus of anamorphic fungi of uncertain family (biology), familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten speci ...

'' *''

Geosmithia xerotolerans ''Geosmithia'' is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, ...

'' Former species; * ''G. argillacea'' = ''

Rasamsonia argillacea ''Rasamsonia'' is a genus of fungi in the family Trichocomaceae, circumscription (taxonomy), circumscribed in 2011 by mycologists Jos Houbraken and Jens Frisvad. It is characterized from other genera of the Trichocomaceae by the following combin ...

'' Aspergillaceae family * ''G. cylindrospora'' = ''

Rasamsonia cylindrospora ''Rasamsonia'' is a genus of fungi in the family Trichocomaceae, circumscription (taxonomy), circumscribed in 2011 by mycologists Jos Houbraken and Jens Frisvad. It is characterized from other genera of the Trichocomaceae by the following combin ...

'' Aspergillaceae * ''G. pallida'' = ''Geosmithia putterillii'' * ''G. viridis'' = ''

Talaromyces viridulus ''Talaromyces'' is a genus of fungi in the family Trichocomaceae. Described in 1955 by American mycologist Chester Ray Benjamin, species in the genus form soft, cottony fruit bodies (ascocarps) with cell walls made of tightly interwoven hyphae. T ...

'' Aspergillaceae

References

External links

* Hypocreales incertae sedis Sordariomycetes genera {{Hypocreales-stub