The goal of this website is to encourage and promote the writing of internet-available lichen identification keys by providing an archive of (hopefully) all available fixed* lichen keys. However, no key will be archived here without full permission of the author or any other copyright holder.
Note: Tentative or quoted names that have not been formally published but are used in key(s) on this site, should not be considered to be published by their inclusion here.
* 'Fixed' key means that the key is not altered or compiled for special purposes from user input; rather, the key was written in a fashion that is static for all users.
Current Keys:
The date is given as Year.Month.Day (as available).
Level codes are 4 parted: Completeness / Chemistry / Lenses / Terminology.
A button linking to the key or author's home page is included so that users may check for more recent keys than are deposited in the archive. However, keys sent to the archive should generally be posted within a few days (not much more than 2 weeks if the archive curator is on vacation) and authors are welcome to deposit updates as frequently as they wish. Home pages may move or disappear, so the links here are not guaranteed to be active. Also, some keys may reside only in the archive and thus may not have a link. Buttons outlined in your browser's link colors are for authors who have stated that they plan very frequent updates.
Recommended Citation Example:
McCune, B. 2002. Key to Lichen Genera in the Pacific Northwest. February version. Permanently stored at the Lichen Key Archive, http://www.toyen.uio.no/botanisk/lav/LichenKey/index.htm.
| Author | Date | Key Title | Taxa Covered | Geographic Region | Level | Comments | Key's Home |
|---|---|---|---|---|---|---|---|
| Ahti, T. and Sipman, H. | < 2002.08.05 | Key to the Cladoniaceae of the Guianas | Cladia, Cladina, Cladonia | Guyana, Surinam, French Guiana, + | 3?/2+/2/3 | 0 |
|
| British Lichen Society | 1997 | Key to Parmelia Ach. of Great Britain and Ireland | Parmelia s. l. | Great Britain and Ireland | 3/2/2/2 | 1 |
|
| Case, J. | < 2002.07.23 | Key to Lichens Of The Alberta Prairies And Parklands | fruticose, foliose, squamulose, crustose | Alberta, Canada | 2/2/3/2 | 0 |
|
| Hinds, J. W. | < 2002.07.23 | Lichen Flora of Eastern North America: The Genus Parmelia Sensu Stricto | Parmelia s. s. | Eastern North America | 3/2/2/2 | 0 |
|
| Mattson, J. and Middelborg, J. | 2000.06.22 | KEYS TO GENERA AND SPECIES OF CALICIALES IN NORWAY | species of lichenized genera (plus Microcalicium) known from region at time of related publication (1987) | Norway | ~3/2/3/3 | 0 |
|
| McCune, B. | 2000.03 | Xanthoria in the Pacific Northwest | Xanthoria | Oregon & Washington, USA | 3/2/3/3 | 0 |
|
| McCune, B. | 2001.02 | Usnea in the Pacific Northwest | Usnea | Oregon & Washington, USA | 3?/2+/2/3 | 0 |
|
| McCune, B. | 2002.02 | Key to Lichen Genera in the Pacific Northwest | all genera known from the region | Oregon & Washington, USA | 3/3/3/3 | 1 |
|
| Peterson, E. B. | 2002.05.06 | A Preliminary Key to Caliciales of the Pacific Northwest | Caliciaceae + Coniocybaceae + Mycocaliciales (the old Caliciales) | Oregon, Washington, & northern California, USA | 1+/3/3/3 | 0 |
|
| Schumm, F. | 2001.01.02 | Hilfsschlüssel zu sorediösen, unterseits unberindeten Heterodermia-Arten inkl. einiger soredienfreier, sonst habituell ähnlicher Arten | sorediate Heterodermia | World-wide? (curator is not able to read much German and is open to corrections) | 3?/2/2/3 | 0 |
|
| Schumm, F. | 2001.02.26 | Hilfsschlüssel zum Bestimmen der Arten der Gattung Heterodermia mit Podocarpa-Wuchsform | podocarpic Heterodermia | World-wide? (curator is not able to read much German and is open to corrections) | 3?/2/2/3 | 0 |
|
| Schumm, F. | 2002.05.27 | Hilfsschlüssel für Heterodermia-Arten mit Isidien oder Schüppchen (Flechten) | isidiate and flaking Heterodermia | World-wide? (curator is not able to read much German and is open to corrections) | 3?/2/2+/3 | 0 |
|
| Sipman, H. | 1996.06 | Key to the Lichen Genera of the Guianas | all genera known from the region | Guyana, Surinam, French Guiana | 3/2/3/2 | 0 |
|
| Sipman, H. | 1997.08.06 | Key to lichens with PODETIA (incl. pseudopodetia) (genera Baeomyces, Cladia, Cladina, Cladonia, Dibaeis, Phyllobaeis ) for the highlands of Ecuador (above 2500 m) with chemical guide to the Cladina and Cladonia species | all(?) species Baeomyces, Cladia, Cladina, Cladonia, Dibaeis, Phyllobaeis | Ecuador above 2500 m | 3?/2+/2/3 | 0 |
|
| Sipman, H. | 1998.01 | Revised key to Hypotrachyna (Parmeliaceae) in Tropical America | Hypotrachyna | American tropics | 3/3/2/3 | 0 |
|
| Sipman, H. | 1999.10.22 | Revised key to Megalosporaceae (genera Austroblastenia, Megaloblastenia, Megalospora) | Megalosporaceae: Austroblastenia, Megaloblastenia, Megalospora | world-wide | 3/2/3/3 | 0 |
|
| Sipman, H. | 2001.09.11 | Identification key and literature guide to the genera of Lichenized Fungi (Lichens) in the Neotropics PROVISIONAL VERSION | all(?) genera known from the region | American tropics | 3?/2+?/3/3 | 0 |
|
| Sipman, H. | 2002.01.13 | MASON HALE's key to Parmotrema, revised edition: key to wide-lobed parmelioid species occurring in Tropical America (genera Canomaculina, Parmotrema, Rimelia, Rimeliella) | Canomaculina, Parmotrema, Rimelia, Rimeliella | American tropics | 3/3/3/3 | 0 |
|
| Sipman, H. (after Poelt, J.) | < 2002.07.26 | Compiled identification key to the genus Pertusaria and some confusible taxa in Europe and the Mediterranean | Pertusaria | Europe and Mediterranean | 3?/3/3/3 | 0 |
|
| Sipman, H. | 2002.08.27 | Key to the Stereocaulon species in the Neotropics | Stereocaulon | American tropics | 3/3/2/3 | 0 |
|
Archive maintenance sponsored in part by the Nevada Natural Heritage Program to promote the understanding of lichen biodiversity in Nevada, USA (and other understudied areas). Many thanks go to the people who have provided comments and recommendations for this site. Thanks also to webmaster support sites including bignosebird.com for graphics, scripts, and html information.