Lichens of Scorpion, Channel Islands National Park, Santa Cruz Island

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Scorpion Lichens checklist
 
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Lichens of Scorpion
Channel Islands National Park, Santa Cruz Island
Checklist provided by Kerry Knudsen in 2016

Basalt is the common rock. The white rock is Monterey shale. Common substrates are listed and older names are used in some genera. Based on three weeks of collecting, ca. 450 specimens. Always possible to find something new.

  • Acarospora americana Magn. On basalt
  • Acarospora elevata Magn. On basalt
  • Acarospora obpallens (Nyl. ex Hasse) Zahlbr. On soil
  • Acarospora socialis Magn. On basalt
  • Arthonia albopulvera On Quercus pacifica
  • Arthonia pruinata (Pers.) A.L. Smith On trees
  • Aspicilia pacifica Owe-Larss. & A. Nordin On rock, the common species on islands
  • Aspicilia phaea Owe-Larss. & A. Nordin On basalt
  • Bacidia coruscans Ekman On island chaparral, small shrubs, trees
  • Bactrospora patellarioides (Nyl.) Almq. On Toyon
  • Bagliettoa calciseda (DC.) Gueidan et Cl. Roux On Monterey shale
  • Buellia abstracta (Nyl.) H. Olivier (misapplied name sequax in Sonoran flora) common on rock
  • Buellia badia (Fr.) A. Massal Parasitic on lichens and independent on basalt, often on Aspicilia species
  • Buellia chistophii Bungartz Brown thallus on basalt
  • Buellia disciformis (Fr.) Mudd On fenceposts
  • Buellia dispersa Massal On basalt
  • Buellia halonia On basalt
  • Buellia maritima (A. Massal.) Bagl. Common on basalt
  • Buellia oidalea (Tuck.) Tuck. Common on bark and some shrubs
  • Buellia punctata Massal. On fenceposts
  • Buellia stellulata (Taylor) Mudd Common on basalt
  • Buellia tesserata Körb. Common on basalt
  • Caloplaca atroflava (Turn.) Mong. On basalt
  • Caloplaca austrocitrina Vondrák, Říha, Arup & Søchting On Monterey shale, sometimes cement
  • Caloplaca bolacina Tuck. Common on rock, pruinose on Monterey shale, sometimes very white
  • Caloplaca brattiae Weber Common on basalt
  • Caloplaca cerina (Ehrh. ex Hedwig) Th. Fr. On bark
  • Caloplaca ignea Arup On basalt
  • Caloplaca impolita Arup On basalt
  • Caloplaca ludificans Arup Usually on Monterey shale
  • Caloplaca luteominia (Tuck.) Zahlbr. var. luteominia Common on rock and soil
  • Caloplaca marmorata (Bagl.) Jatta Calciphile on Monterey shale
  • Caloplaca pyracea (Ach.) Th. Fr. Especially on small coastal shrub, this is probably misapplied
  • Caloplaca stantonii A. Weber ex Arup On rock, common
  • Candelaria pacifica Westberg Common on bark and wood
  • Candelariella aurella (Hoffm.) Zahlbr.  Common on rock
  • Candelariella xanthostigma (Ach.) Lettau  Common on bark and wood and also on rock
  • Catillaria subviridis (Nyl.) Zahlbr. On volcanic rock
  • Chrysothrix granulosa Thor. Common on bark, occasionally on rock, fenceposts
  • Chrysothrix xanthina (Vainio) Kalb Frequent on bark and rock
  • Cladonia acuminata (Ach.) Norrlin In soil crusts always lacking podetia
  • Cladonia pulvinella Hammer Common
  • Clavascidium lacinulatum (Ach.) M. Prieto In soil crusts
  • Cliostomum griffithii (Sm) Coppins On bark and wood
  • Collema coccophorum In soil crusts
  • Collema crispum (Huds.) F.H. Wigg In soil crusts
  • Collema cristatum (L.) F.H. Wigg In soil crusts
  • Collema tenax (Sw.) Ach. In soil crusts
  • Dendrographa franciscana (Zahlbr. ex Herre) Ertz & Tehlar Rare on basalt
  • Dendrographa leucophaea (Tuck.) Darb. Common on shrubs
  • Dermatocarpon americanum On rock
  • Dermatocarpon leptophyllodes (Nyl.) Zahlbr On basalt
  • Dimelaena californica (H. Magn.) Sheard Common on basalt and parasitic on Dimelaena radiata
  • Dimelaena radiata (Tuck.) Müll. Arg. Common on rock
  • Diploicia canescens (Dicks.) A. Massal. Common on bark and rock
  • Diploschistes actinostomus (Ach.) Zahlbr. On basalt
  • Diploschistes diacapsis (Ach.) Lumbsch On soil
  • Diploschistes muscorum (Scop.) R. Sant. On soil, parasitic on Cladonia, Leprocaulon americanum & Lepraria xerophila, sometimes growing on to rock 
  • Diploschistes scruposus (Schreb.) Norman   On basalt
  • Diplotomma alboatrum (Hoffm.) Flot. On rock
  • Dirina catalinariae Hasse Common on basalt, usually sterile
  • Endocarpon loscosii Arg. In soil crusts
  • Endocarpon pallidulum (Nyl.) Nyl. On basalt
  • Endocarpon petrolepideum (Nyl.) Nyl. On basalt
  • Endocarpon pusillum In soil crusts, sometimes densely pruinose
  • Flavoparmelia caperata (L.) Hale On Quercus pacifica
  • Flavopunctelia flaventior (Stirton) Hale On Quercus pacifica and ironwood
  • Heppia adglutinata (Kremp.) A. Massal In soil crusts
  • Hyperphyscia adglutinata (Flörke) H. Mayrhofer & Poelt  On bark ( confusa reported on rock)
  • Hypogymnia minilobata McCune & Schoch Rare on bark of trees or small shrubs
  • Lecanactis californica On Rhus intergrifolia
  • Lecania brunonis (Tuck.) Herre On rock
  • Lecania dudleyi Herre Common in soil crusts
  • Lecania franciscana (Tuck.) K. Knudsen & Lendemer On Monterey shale
  • Lecania fructigena Common on basalt and also in salt spray zone
  • Lecania hassei (Zahlbr.) W. Noble Common basalt esp. higher elevations
  • Lecania naegelii (Hepp.) Diederich & v.d. Boom On bark
  • Lecania pacifica ex B.D. Ryan & van den Boom Rare effigurate species on rock
  • Lecania turicensis (Hepp.) Mull. Arg On calcareous uplifted dune at Potato Harbor
  • Lecanographa brattiae (Egea & Ertz) Ertz & Tehler Common on rock
  • Lecanographa hypothallina (Zahlbr.) Egea & Torrente In sheltered areas on basalt
  • Lecanora annularis Lendemer & K. Knudsen Rare on basalt, described from Santa Cruz Island
  • Lecanora caesiorubella Common on bark
  • Lecanora crenulata in Smith On Monterey shale
  • Lecanora dispersa (Pers.) Sommerf. Frequent on basalt
  • Lecanora gangaleoides Common on basalt
  • Lecanora hagenii (Ach.) Ach. On Monterey shale and basalt
  • Lecanora laxa (Sliwa & Wetmore) Printzen Rare on bark of Prunus ilicifolia
  • Lecanora muralis (Schreb.) Rabenh. Common on rock
  • Lecanora pacifica Common on shrubs and trees, disc sometimes black
  • Lecanora subcarnea (Sw.) Ach. Infrequent on rock on this side of island
  • Lecanora substrobilina Prinzten On trees, infrequent
  • Lecidea fuscoatra (L. ) Ach. On basalt, often dull pale brown, infected with fungus
  • Lecidea laboriosa Müll. Arg. On basalt, usual endolithic species but sometimes with thin scurfy thallus
  • Lecidella asema (Nyl.) Knoph & Hertel Common on basalt, sometimes soil
  • Lecidella carpathica Körb. On basalt
  • Lecidella granulosula (Nyl.) Knoph & Leuckert On bark, rare on Santa Cruz and Santa Rosa
  • Lecidella scabra (Taylor) Hertel On basalt
  • Lepraria neglecta (Nyl.) Lettau Usually in rock crevices
  • Lepraria xerophila Tønsberg Common in soil crusts, on vertical dirt surfaces too
  • Leprocaulon americanum Lendemer & Hodkinson In soil crusts, common
  • Leprocaulon terricola (Lendemer) Lendemer & Hodkinson In soil crusts
  • Lichinella robustoides Henssen, Budel & T.H. Nash Rare on basalt
  • Micarea denigrata (Fries) Hedlund On wood
  • Mobergia angelica (Stizenb.) H. Mayr.& Sheard Common on rock and sometimes in soil crusts
  • Myriospora scabrida (Hedl. ex H. Magn.) K. Knudsen & L. Arcadia On basalt
  • Niebla cephalota (Tuck.) Rundel & Bowler Common on shrubs
  • Niebla ceruchis Rundel & Bowler Common on shrubs
  • Niebla ceruchoides Rundel & Bowler Rare on soil over basalt
  • Niebla homalea (Ach.) Rundel & Bowler All over on rock
  • Niebla laevigata Bowler & Rundel Looks lie homalea, for instance on basalt along Smuggler Road
  • Opegrapha herbarum On bark and on rock (with no thallus)
  • Parmotrema hypoleucinum (B.Stein.) Hale On Quercus pacifica
  • Peltula euploca (Ach.) Poelt On basalt (also on at least Santa Rosa false euploca with no soredia and apothecia)
  • Peltula obscurans hassei (Zahlbr.) Wetmore On basalt
  • Pertusaria amara (Ach.) Nyl. On bark and rock
  • Pertusaria brattiae Lumsch & T.H. Nash Common on rock
  • Pertusaria flavicunda Common on all the islands on rock, fertile or sorediate
  • Phaeophyscia hirsuta (Mereschk.) Essl. On rock
  • Physcia adscendens (Fr.) H. Oliver On bark and shrubs
  • Physcia dimidiata (Arnold) Nyl. On basalt
  • Physcia phaea (Tuck.) J.W. Thomson On basalt. Common.
  • Physcia tenellula Moberg Frequent on basalt.
  • Physcia tribacia (Ach.) Nyl. On basalt
  • Physconia isidiigera (Zahlbr. ex Herre) Essl. On bark and rock
  • Placidium squamulosum (Ach.) Bruess In soil crusts
  • Protoparmelia ryaniana van den Boom, Sipman & Elix on basalt, parasitic on crusts. Changed recently to Miriquidica verrucariicola (B. Ryan) K. Knudsen & Kocourk.
  • Pseudosagedia chlorotica (Ach.) Hafellner & Kalb On rock
  • Psora luridella (Tuck.) Fink In soil crusts also on rock
  • Psora pacifica Timdal In soil crusts
  • Psorotichia hassei Fink On basalt
  • Punctelia jeckeri (Roum.) Kalb On Quercus pacifica
  • Pyrrhospora quernea (Dicks.) Körb. Common wood, smooth bark, fenceposts, often fertile
  • Ramalina canariensis Steiner On bark
  • Ramalina farinacea (L.) Ach. On bark
  • Ramalina leptocarpha On bark
  • Ramalina menziesii Taylor On bark
  • Ramalina subleptocarpha Rundel & Bowler On bark
  • Rinodina gennarii On basalt and Monterey shale
  • Rinodina innata Sheard On basalt, described from Santa Cruz Island
  • Rinodina intermedia Common in soil crusts
  • Sarcogyne regularis Körb. Calcareous rock with shells
  • Schizopelte californica Fr. On basalt in sheltered areas
  • Schizopelte crustosa Ertz & Tehler On basalt, rare.
  • Schizopelte parishii (Hasse) Ertz & Tehler In sheltered area on basalt
  • Scoliciosporum umbrinum (Ach.) Arnold On basalt
  • Sigridea californica (Tuck.) Tehler On bark and wood, sometimes eucalyptus
  • Teloschistes chrysophthalmus (L.) Th. Fr. On bark
  • Teloschistes flavicans (Sw) Norman On bark
  • Tephromela atra (Huds.) Hafellner On basalt
  • Thelomma mammosum (Hepp ex Hartung) L. Tibell Common on basalt
  • Thelomma ocellatum (Korb.) L. Tibell Rare on fenceposts, sterile
  • Thelomma santessonii Tibell Common on basalt
  • Toninia aromatica (Sm.) A. Massal. On Monterey shale and soil crusts where calcareous
  • Trapelia coarctata (Turner ex Sm. )M. Choisy Very thin on soil esp. growing on trails and Sterile.
  • Trapelia glebulosa (Sw.) J.R. Laundon On soil
  • Umbilicaria phaea On basalt, common
  • Verrucaria furfuracea (B. de Lesd) Breuss On Monterey shale
  • Verrucaria mimicrans Servít On Monterey shale
  • Verrucaria muralis On Monterey shale
  • Verrucaria othmarii Knudsen & L. Arcadia On Monterey shale
  • Verrucaria subdivisa Breuss Common on basalt
  • Xanthomendoza oregana (Gyeln.) Søchting, Kärnefelt & S. Kondratyuk On Rhus integrifolia
  • Xanthoparmelia cumberlandia (Gyeln.) Hale On basalt
  • Xanthoparmelia mexicana (Gyeln.) Hale Common on basalt
  • Xanthoparmelia verruculifera (Nyl.) O. Blanco, A. Crespo, Elix, D. Hawksw. & Lumbsch On basalt
  • Xanthoria candelaria (L.) Th. Fries Common on rocks and shrubs
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