''Collema'' (jelly lichen) is a
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...
of
lichens in the
family
Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...
Collemataceae.
The
photobiont
A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.[cyanobacterium
Cyanobacteria (), also known as Cyanophyta, are a phylum of gram-negative bacteria that obtain energy via photosynthesis. The name ''cyanobacteria'' refers to their color (), which similarly forms the basis of cyanobacteria's common name, blu ...]
genus ''
Nostoc
''Nostoc'', also known as star jelly, troll’s butter, spit of moon, fallen star, witch's butter (not to be confused with the fungi commonly known as witches' butter), and witch’s jelly, is the most common genus of cyanobacteria found in var ...
''.
[Dobson, F.S. (2000) Lichens, an illustrated guide to the British and Irish species. 4th edition. Richmond publishing Co., Slough, England.]
Species
*''
Collema actinoptychum''
*''
Collema coniophilum''
– Canada
*''
Collema flaccidum''
*''
Collema furfuraceum''
*''
Collema glaucophthalmum''
*''
Collema glebulentum''
*''
Collema implicatum''
*''
Collema insulare''
*''
Collema japonicum''
*''
Collema laeve''
*''
Collema leptaleum''
*''
Collema leucocarpum''
*''
Collema marginale''
*''
Collema nigrescens''
*''
Collema pulcellum''
*''
Collema pustulatum''
*''
Collema rugosum''
*''
Collema ryssoleum''
*''
Collema sichuanense''
– China
*''
Collema subconveniens''
*''
Collema subflaccidum''
*''
Collema subnigrescens''
*''
Collema substipitatum''
References
Peltigerales
Lichen genera
Peltigerales genera
Taxa described in 1780
{{Peltigerales-stub