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0.01 (development)
Eric B. Peterson
Pseudothelomma
This genus is collected primarily from old wood fence posts, although it can be found on natural wood as well.
Taxa covered (2):
Key to Species
Validation script believes all taxa are included in the key(s).
- 1a. Ascomata abundant; thallus lacking ruptures that form dark soredia. Widespread but within North America this is most abundant in coastal areas of the Pacific Southwest.Pseudothelomma occidentale
- 1b. Ascomata absent or infrequent; thallus with frequent ruptures that form patches of dark soredia. Widespread, but within North America this is most abundant in semi-arid portions of the western interior.Pseudothelomma ocellatum
Species Details
Pseudothelomma occidentale (Herre) M. Prieto & Wedin
ID=204
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External Information:
ID=204
Type(s):
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Unspecified collections:
Thelomma occidentale
Thelomma occidentale
Thelomma occidentale
Thelomma occidentale ascospores.
On fencepost, Hastings Reserve, Monterey County, California.
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Index Fungorum: ID=
Encyclopedia of Life (EOL): Search - CNALH: Search
- NatureServe:
ODBaL SearchNucleotide Search
Pseudothelomma ocellatum (Flot. ex Körb.) M. Prieto & Wedin
ID=205
Type(s):
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External Information:
ID=205
Type(s):
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Cyphelium caliciforme (Flotow) Zahlbr.
Unspecified collections:
Thelomma ocellatum
EBP#4866, approximately 8X, focal stack
Thelomma occelatum
Thelomma ocellatum ascospores.
Ascomata are rare on this sorediate species, but seem relatively common on the Modoc Plateau of California.
Thelomma ocellatum soredium
The black granules that make up a large portion of the upper surface.
Habit and Morphology:
Thallus grey, verrucose to areolate, with areolae fracturing and forming black isidioid soredia.
Ascomata infequent, immersed in areoles.
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In western North America this is locally abundant in semi-arid regions. Most collections come from fenceposts but in some areas where Juniperus spp. exists with a minor component of Pinus ponderosa this can be found commonly on dead wood Juniperus.
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External Information:
- Index Fungorum: ID=
- Encyclopedia of Life (EOL): Search
- CNALH: Search
- NatureServe:
- ODBaL Search
Count of taxa = 2