Observation 69312: Fulgensia desertorum (Tomin) Poelt

When: 2011-06-02

Collection location: Canyon de Chelly National Monument, Apache Co., Arizona, USA [Click for map]

Who: Chris Parrish (kitparrish)

No specimen available

Locality: upper slopes of the trail to the White House Anasazi ruins

Identification: Two species of Fulgensia are recorded from Arizona (Bates et al., 2010; lichen characterizations from Kasalicky in Nash et al., vol. 2, 2004, pp.114-116):
Fulgensia desertorum — thallus with schizidia, dispersed into elements; marginal lobes absent or poorly developed; apothecia common; spores septate
Fulgensia subbracteata — thallus with schizidia, monophyllous, marginal lobes well developed, apothecia very rare; spores aseptate
The present lichen is dispersed into a number of elements (only suggested by the photo), presents numerous apothecia and schizidia (platelike elements on the lichen surface) and is without marginal lobes, suggesting Fulgensia desertorum, “one of the most common Fulgensia species in Arizona” (Kasalicky in Nash et al., vol. 2, p.115)

Bates et al., 2010, A Revised Catalog of Arizona Lichens, Canotia 6(1): 26-43.


Spider Rock and Canyon de Chelly
lichen habitat: boulders, tallus, and loose sandy soil on the upper slopes of the trail to the White House Anasazi ruins

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Used references: Kasalicky in Nash et al., vol. 2, 2004, pp.114-116

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Created: 2011-06-15 22:18:59 CDT (-0400)
Last modified: 2011-06-19 00:41:16 CDT (-0400)
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