When: 2009-02-25

Collection location: Sewanee, Franklin Co., Tennessee, USA [Click for map]

Who: Chris Parrish (kitparrish)

Specimen available

Notes:
Location: 35°12’15.59"N, 85°55’13.48"W, el. 589 m. Central Campus.

Substrate: Growing on the bark of a large American Elm, Ulmus americana, mostly within 1 m of the ground and, in another part of town, on the bark of a large hackberry, Celtis occidentalis. Both trees are beside well-traveled village roads.

Habitat: Urban area in the central campus, beside principal roads through town.

Photos:
Central campus, 25 feb 2009: 37558-37567
Central campus, 26 feb 2009: 37652-37654, 38362-36368

Chemistry: cortex C-, K+ purple.

Note added on 08 Mar 2009: Thank you, Gary. Lindblom distinguishes between the western Xanthomendoza fulva and the southeastern Xanthomendoza weberi. Her figures 1 and 4 illustrate the differences. Under this arrangement, the Sewanee observations belong to Xanthomendoza weberi.

Reference:
Louise Lindblom, “Xanthomendoza galericulata, a new sorediate lichen species, with notes on similar species in North America,” The Bryologist 109(1):1-8. 2006.

Voucher specimens:
Tennessee, Franklin County, Sewanee, central campus, 21 Mar 2009, Chris Parrish 0028, det. Gary Perlmutter (NCU)
Tennessee, Franklin County, Sewanee, central campus, 19 Feb 2010, Chris Parrish 0053, det. James C. Lendemer (NY).

Common Name: sunburst lichen

Species Lists

Images

growing on Hackberry, Celtis occidentalis, central campus, 26 feb 2009
apothecia and thallus, 10x
apothecia and thallus, 16x
apothecia and thallus, 20x
apothecium, 63x
lobes, 40x
lobes, 63x
section thru thallus, 40x
soredia, 50x
soredia, 100x
soredia on underside of squamule, 100x
growing on American Elm, Ulmus americana, central campus, 26 feb 2009
growing on American Elm, Ulmus americana, central campus, 26 feb 2009
growing on American Elm, Ulmus americana, central campus, 26 feb 2009
growing on Hackberry, Celtis occidentalis, central campus, 26 feb 2009
growing on Hackberry, Celtis occidentalis, central campus, 26 feb 2009
growing on Hackberry, Celtis occidentalis, central campus, 26 feb 2009
growing on Hackberry, Celtis occidentalis, central campus, 26 feb 2009
growing on Hackberry, Celtis occidentalis, central campus, 26 feb 2009
growing on Hackberry, Celtis occidentalis, central campus, 26 feb 2009
growing on Hackberry, Celtis occidentalis, central campus, 26 feb 2009

Proposed Names

-28% (1)
Used references: Brodo, Sharnoff, and Sharnoff, pp. 745
Based on chemical features: cortex C-, K+ purple

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= Observer’s choice
= Current consensus

Comments

Add Comment
Xanthomendoza source
By: Gary Perlmutter (gbperlmutter)
2009-03-06 10:03:54 CST (+0800)

I suggest keying this using the recent article “Xanthomendoza galericulata, a new sorediate lichen species, with notes on similar species in North America” by Lindblom (The Bryologist 109(1): 1-8 (2006).