Lichens are a symbiotic association between fungi and algae. The lichens from genus Usnea, from the family Parmeliceae, grow up in trees of all the world. It is estimated that are around +600 species of this genus. In Mesoamerica, the principal species of Usnea, according to GBIF and Herrera, et-al (1998) are:
- Usnea amabilis
- Usnea ceratina
- Usnea cristatula
- Usnea firma
- Usnea goniodes
- Usnea himantodes
- Usnea longissima
- Usnea mexicana
- Usnea rubicunda
- Usnea papillata
- Usnea ramillosa
- Usnea subelegans
- Usnea transitoria
PDF, Articles, Books on Usnea from Mesoamerica
- 2004
- Does tree height determine epiphyte diversity? Selbyana. Vol. 25, No. 1. Pages 101-117.
Sold online:
https://www.jstor.org/stable/41760149?Search=yes&resultItemClick=true&searchText=usnea&searchText=
mexicana&searchText=guatemala&searchUri=%2Faction%2FdoBasicSearch%3FQuery%3Dusnea%2Bm
exicana%2Bguatemala&ab_segments=0%2Fdefault-1%2Frelevance_config_with_defaults&refreqid=search
%3Affdd118aba7a901c5c83efd3c6e7cfdd&seq=1#page_scan_tab_contents
- 1998
- Pendulous species of Usnea from the temperate forests in Mexico. The bryologist. Vol. 101, No. 2. Pages 303-329.
Sold online:
www.jstor.org/stable/3244208?seq=1#page_scan_tab_contents
- 1956
- Catalogue of Central America lichens. The Bryologist. Vol. 59, No. 2. Pages 69-114.
Sold online:
www.jstor.org/stable/3239924?Search=yes&resultItemClick=true&searchText=usnea&searchText=
ceratina&searchText=guatemala&searchUri=%2Faction%2FdoBasicSearch%3FQuery%3Dusnea%
2Bceratina%2Bguatemala&ab_segments=0%2Fdefault-1%2Frelevance_config_with_defaults
&refreqid=search%3A4a87b2234d11736032fcf0b61375a3e7&seq=1#page_scan_tab_contents
- 2007
- New or interesting Lichen records from Guatemala I. Willdenowia. Pages 363-375.
Sold online:
https://www.jstor.org/stable/20371356?Search=yes&resultItemClick=true&searchText=usnea&
searchText=amabilis&searchUri=%2Faction%2FdoBasicSearch%3FQuery%3Dusnea%2Bamabilis
%26amp%3Bed%3D%26amp%3Bpagemark%3DcGFnZU1hcms9Mg%253D%253D%26amp%
3BsearchType%3DfacetSearch%26amp%3Bsd%3D&ab_segments=0%2Fdefault-1%2Frelevance
_config_with_defaults&seq=1#page_scan_tab_contents
- 2006
- The phylogeny and classification of Neuropogon and Usnea (Parmeliacae, Ascomycota) revisited. Taxon. Vol. 55, No. 2. Pages 367-376.
Sold online:
https://www.jstor.org/stable/25065584?Search=yes&resultItemClick=true&searchText=usnea&search
Uri=%2Faction%2FdoBasicSearch%3FQuery%3Dusnea%26amp%3Bfilter%3D&ab_segments=0%2
Fdefault-1%2Frelevance_config_with_defaults&refreqid=search%3A479787d68cb9513802980a1fea
6c766a&seq=1#page_scan_tab_contents
Suggested webpages with photos and information on Genus Usnea from Mesoamerica
www.naturalista.mx/taxa/67747-Usnea
Photos of different species of Usnea.
https://www.naturalista.mx/taxa/117902-Usnea-ceratina
Photos of U. ceratina..
http://lichenportal.org/portal/taxa/index.php?taxon=54715
Information of U. goniodes.
www.anbg.gov.au/abrs/lichenlist/FLORA%2056A/Usnea_himantodes.html
Information of U. himantodes.
www.fs.fed.us/wildflowers/plant-of-the-week/usnea_longissima.shtml
Information and photo of U. longissima.
http://lichenportal.org/portal/taxa/index.php?taxon=54716
Information of U. mexicana.
www.lichens.lastdragon.org/Usnea_rubicunda.html
Information and photos of U. rubicunda.
http://lichenportal.org/portal/taxa/index.php?taxon=126962
Information of U. subelegans.
http://lichenportal.org/portal/taxa/index.php?taxon=54718
Information of U. transitoria.
First posted December, 2018
Bibliography prepared by Marcella Sarti, FLAAR Mesoamerica (Guatemala).