''Chaenotheca'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

lichen A lichen ( , ) is a hybrid colony (biology), colony of algae or cyanobacteria living symbiotically among hypha, filaments of multiple fungus species, along with yeasts and bacteria embedded in the cortex or "skin", in a mutualism (biology), m ...

ized fungi within the family Coniocybaceae. The sexual reproduction structures are a mass of loose

ascospores In fungi, an ascospore is the sexual spore formed inside an ascus—the sac-like cell that defines the division Ascomycota, the largest and most diverse division of fungi. After two parental nuclei fuse, the ascus undergoes meiosis (halving of ...

that are enclosed by a cup shaped sitting on top of a tiny stalk, having the appearance of a dressmaker's pin (called a

mazaedium This glossary provides an overview of scientific terminology, terms used in the description of lichens, composite organisms arising from algae or cyanobacteria living symbiosis, symbiotically among Hypha, filaments of multiple fungus species. Er ...

), hence the common name

pin lichen Lichens are symbiotic organisms made up of multiple species: a fungus, one or more photobionts (an alga and/or a cyanobacteria) and sometimes a yeast. They are regularly grouped by their external appearance – a characteristic known as their gro ...

.Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, Genus members are also commonly called needle lichens.USDA Natural Resources Conservation Service Name Search
/ref> partners for ''Chaenotheca'' include members of the algae genera '' Symbiochloris'', ''

Trebouxia ''Trebouxia'' is a unicellular green alga. It is a photosynthetic organism that can exist in almost all habitats found in polar, tropical, and temperate regions.Erokhina, L. G., Shatilovich, A. V., Kaminskaya, O. P., & Gilichinskii, D. A. (2004 ...

'', '' Trentepohlia'', and '' Tritostichococcus''.

Species

*'' Chaenotheca balsamconensis'' – North America *''

Chaenotheca biesboschii ''Chaenotheca'' is a genus of lichenized fungi within the family Coniocybaceae. The sexual reproduction structures are a mass of loose ascospores that are enclosed by a cup shaped sitting on top of a tiny stalk, having the appearance of a dres ...

'' – Netherlands *'' Chaenotheca brachypoda'' *'' Chaenotheca brunneola'' *''

Chaenotheca chlorella ''Chaenotheca'' is a genus of lichenized fungi within the family Coniocybaceae. The sexual reproduction structures are a mass of loose ascospores that are enclosed by a cup shaped sitting on top of a tiny stalk, having the appearance of a dres ...

'' *'' Chaenotheca chrysocephala'' *''

Chaenotheca citriocephala ''Chaenotheca'' is a genus of lichenized fungi within the family Coniocybaceae. The sexual reproduction structures are a mass of loose ascospores that are enclosed by a cup shaped sitting on top of a tiny stalk, having the appearance of a dres ...

'' *''

Chaenotheca confusa ''Chaenotheca'' is a genus of lichenized fungi within the family Coniocybaceae. The sexual reproduction structures are a mass of loose ascospores that are enclosed by a cup shaped sitting on top of a tiny stalk, having the appearance of a dres ...

'' – South America *''

Chaenotheca degelii ''Chaenotheca'' is a genus of lichenized fungi within the family Coniocybaceae. The sexual reproduction structures are a mass of loose ascospores that are enclosed by a cup shaped sitting on top of a tiny stalk, having the appearance of a dres ...

'' *''

Chaenotheca deludens ''Chaenotheca'' is a genus of lichenized fungi within the family Coniocybaceae. The sexual reproduction structures are a mass of loose ascospores that are enclosed by a cup shaped sitting on top of a tiny stalk, having the appearance of a dres ...

'' *''

Chaenotheca erkahomattiorum ''Chaenotheca'' is a genus of lichenized fungi within the family Coniocybaceae. The sexual reproduction structures are a mass of loose ascospores that are enclosed by a cup shaped sitting on top of a tiny stalk, having the appearance of a dres ...

'' – North America *'' Chaenotheca ferruginea'' *'' Chaenotheca furfuracea'' *''

Chaenotheca gracilenta ''Chaenotheca'' is a genus of lichenized fungi within the family Coniocybaceae. The sexual reproduction structures are a mass of loose ascospores that are enclosed by a cup shaped sitting on top of a tiny stalk, having the appearance of a dres ...

'' *''

Chaenotheca gracillima ''Chaenotheca'' is a genus of lichenized fungi within the family Coniocybaceae. The sexual reproduction structures are a mass of loose ascospores that are enclosed by a cup shaped sitting on top of a tiny stalk, having the appearance of a dres ...

'' *'' Chaenotheca hispidula'' *''

Chaenotheca hygrophila ''Chaenotheca'' is a genus of lichenized fungi within the family Coniocybaceae. The sexual reproduction structures are a mass of loose ascospores that are enclosed by a cup shaped sitting on top of a tiny stalk, having the appearance of a dres ...

'' *''

Chaenotheca laevigata ''Chaenotheca'' is a genus of lichenized fungi within the family Coniocybaceae. The sexual reproduction structures are a mass of loose ascospores that are enclosed by a cup shaped sitting on top of a tiny stalk, having the appearance of a dres ...

'' *''

Chaenotheca longispora ''Chaenotheca'' is a genus of lichenized fungi within the family Coniocybaceae. The sexual reproduction structures are a mass of loose ascospores that are enclosed by a cup shaped sitting on top of a tiny stalk, having the appearance of a dress ...

'' *'' Chaenotheca nitidula'' – North America *'' Chaenotheca papuensis'' *'' Chaenotheca phaeocephala'' *'' Chaenotheca selvae'' *'' Chaenotheca stemonea'' *'' Chaenotheca trichialis'' *'' Chaenotheca xyloxena''

References

Ascomycota genera Lichen genera Taxa named by Theodor Magnus Fries Taxa described in 1860 Coniocybaceae {{Ascomycota-stub