Flavopunctelia soredica (Nyl.) Hale, 1984
| Common name | Powder-edged Speckled Greenshield |
|---|---|
| Code | FLAVSOR |
| Field Characters | Large, leafy, yellow chlorolichen. Thalli appressed to ruffled, forming medium-sized colonies to 15 cm wide. Lobes pale yellow, rounded, to 1.2 cm across. Upper cortex pale yellow, smooth to weakly wrinkled, with sparse, cryptic laminal pseudocyphellae or pseudocyphellae apparently lacking. Soredia present, farinose, mostly in marginal, crescent-shaped soralia. Lower cortex typically brown to blackened centrally with sparse, simple rhizines, often absent near the margin. Apothecia rare, relatively large, on stipes, with brown disc and nubby, sorediate yellow thalline margins. |
| Similar species |
Flavopunctelia flaventior: upper cortex with abundant, obvious laminal pseudocyphellae, soredia more granular in both laminal and marginal, crescent-shaped soralia.
Flavoparmelia caperata: lacks pseudocyephellae and has a PD+ red medulla. Punctelia caseana: grey-green upper cortex and pale, tan, or pale brown lower cortex with rhizines to the lobe edge. Usnic-acid deficient shade forms of Flavopunctelia can closely resemble Punctelia. |
| Ecology | Epiphytic or on downed wood, both deciduous and coniferous, rarely on rock. Occasional in parts of the boreal and parkland regions, including urban naturalized parks (Haughland et al. 2022). |
| Chemistry | Upper cortex KC+yellow, K- or K+ pale yellow, C-, PD-, UV- (usnic acid). Medulla C+ red, KC+ red, K-, PD-, UV- (lecanoric acid). |
| Molecular support |
Molecular support: strong. One new sequence generated. The separation from F. flaventior is well-supported in Haughland et al. 2022. |
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- Flavopunctelia soredica, Edmonton, AB
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- Flavopunctelia soredica, Edmonton, AB
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- Flavopunctelia soredica, Edmonton, AB
