| Acarospora brouardi B de Lesd. |
| Amphisphaeria bufonia (Berk. & Br.) Ces. & DeNot. |
| Bactrospora patellarioides var. convexa (B. de Lesd.) Egea & Torente |
| Caloplaca appressa Wetm. & Karnef. |
| Candelaria pacifica Westberg ined. |
| Catinaria neuschildii (Körb.) P. James |
| Cladonia corymbosula Nyl. |
| Cladonia gracilis var. dilatata (Jacq.) Flörke |
| Cladonia kurokawae Ahti |
| Cladonia pulverulenta (Scriba ex Sandst.) Ahti |
| Cladonia reticulata (Russ.) Wain. |
| Clauzadea metzleri (Körb.) D. Hawksw. |
| Dermatocarpon leptophyllum (Ach.) Lang |
| Digitothyrea divergens (Henssen) Moreno and Egea |
| Diploschistes euganeus (Pers.) Zahlbr. |
| Diploschistes scruposus var. scruposus (Schreber) Norman |
| Fellhanera silicis Harris & Ladd ined. |
| Gyalideopsis epicorticis (A. Funk) Tønsberg & Vezda |
| Gyalideopsis ozarkensis Lücking, W. R. Buck & R. C. Harris |
| Heterodermia spathulifera Moberg & Purvis. |
| Homostegia hoklii Hawksw, Atienza & Cole |
| Lecanora invadens Magn. |
| Lecidea fuscoatra var. grisella unknown |
| Lecidea pseudoaglaea Hertel |
| Lecidea symmictella Nyl. |
| Lecidella nashiana Knoph & Leuckert |
| Leioderma cherokeense P. M. Jørg. & Tønsberg |
| Mycobilimbia ahlesii var. nemoralis (Lowe) Coppins & Fryday ined. |
| Mycocalicium victoriae (F. Wilson) Tibell |
| Mycoglaena wetmorei Harris ined. |
| Naetrocymbe punctiformis (Pers.) Harris |
| Niebla josecuervoi (Rundel & Bowler) Rundel & Bowler |
| Physcia erythrocardia unknown |
| Physcia plicatum unknown |
| Porpidia andersonii Gowan ined. |
| Protoblastenia siebenhaariana (Körb.) Steiner |
| Protonectria erythrinella (Nyl.) Lowen |
| Punctelia ulophylla (Ach.) van Herk & Aptroot |
| Rinodina albertana Sheard ined. |
| Rinodina austroborealis Sheard ined. |
| Rinodina dilatata Sheard ined. |
| Rinodina maculans Müll. Arg. |
| Rinodina oleae Ball. |
| Rinodina pycnocarpa Magn. |
| Schaereria dolodes (Nyl. ex Hasse) Schmull. & T. Spirib. |
| Toninia ruginosa subsp. Ruginosa (Tuck.) Herre |
| Trypethelium mastoideum (Ach.) Ach. |
| Umbilicaria aprina var. diomedensis Llano |
| Umbilicaria torrefacta var. pachydermata Llano |
| Xanthoparmelia tinctina (Maheu & A. Gillet) Hale |
There are 50 species of lichens that have been found in national parks and are not listed in the North American Checklist.
This list was generated on November 23, 2009 by NPLICHEN, www.ies.wisc.edu/nplichen, a database of lichens in the U.S. National Parks that was developed by James Bennett and Clifford Wetmore.