59 
Crossosoma 34(2), Fall-Winter 2008 
PRELIMINNARY CHECKLIST OF THE LICHENS OF 
SAN MIGUEL ISLAND 
Acarospora socialis H. Magn. - Saxicolous. Green Mountain, Marsh 8047, Nash 
41383 (ASU); Devil’s Knoll, Marsh 7880 (ASU). 
Adelolecia sonorae Hertel - Saxicolous. Hertel (2004) described this new species 
from two specimens. The holotype was from Baja California. The paratype was 
collected by Nash on Green Mountain. The types could not be located and may be 
lost or misfiled at ASU or have not been returned by Hertel. I did not collect any 
specimens of A. sonorae. But I have collected it on Santa Rosa Island on the bluff 
between Lobos Canyon and Cow Canyon. 
Bacidia coruscans S. Ekman- Corticolous. On dead trunk of Coreopsis gigantea, 
trail to Lester Point, Knudsen 6810 (UCR). Type locality is the sand dunes of the 
east end where it was collected on the dead stems of Lupinus albifrons. 
Bacidina calif ornica S. Ekman - Corticolous. Green Mountain, Knudsen 6798, 
6694.2. (UCR). 
Bacidina ramea S. Ekman - Corticolous. Nidever Canyon, Bratt 9030 (SBBG). 
Buellia species - Terricolous. Cuyler Harbor, Knudsen 6895 (UCR). Undescribed 
terricolous taxon (see Bungatrtz et al. 2007) listed as Buellia species 2 and 
reported from two Nash collections from Santa Rosa Island. More collections are 
needed of this taxon before it can be described. It would have been a component 
of calcareous biological soil crusts. 
Buellia alboatra (Hoffm.) Th. Fr. - Usually Saxicolous. Green Mountain, 
Knudsen 6678 (UCR), Nash 41226 (ASU); Cuyler Harbor, Knudsen 6892 (UCR); 
side canyon SE of Willow Canyon, Nash 41302 (ASU); the Gangplank, Nash 
41097 (ASU); along trail to Harris Point, Nash 41125 (ASU). 
Buellia capitis-regum W.A. Weber - Saxicolous. Green Mountain Nash 41226 
(ASU), Marsh 7981 (ASU) ; side canyon SE of Willow Canyon, Nash 41252 
(ASU); lower Willow Canyon, Nash 41321 (ASU); Harris Point, Nash 41156 
(ASU); Lester Point, Nash 41134; Marsh 7921, 7911, 7918 (ASU). 
Buellia christophii Bungartz - Saxicolous. Harris Point, Nash 41181, 41174 
(ASU). 
