Observation 49485: Dactylina arctica (Richardson) Nyl.

When: 2010-07-27

Collection location: Maligne Lake, Jasper National Park, Alberta, Canada [Click for map]

Who: Chris Parrish (kitparrish)

No specimen available

Location: 52°43’31.46"N, 117°38’14.92"W, el. 1693m

Habitat: Growing on mossy floor of Lodgepole Pine forest within a few meters of Maligne Lake.

[admin – Sat Aug 14 02:02:34 +0000 2010]: Changed location name from ‘Maligne Lake, Jasper NP, Alberta, Canada’ to ‘Maligne Lake, Jasper National Park, Alberta, Canada’

Proposed Names

28% (1)
Used references: McCune and Geiser, 2009, p.111
84% (1)
Used references: Lichens of North America: unbranched = arctica

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Danny Newman (myxomop)
2010-08-02 22:15:20 PDT (-0700)

The determination of Xylaria at that observation is a guess at best, as the comments will show. No one to visit it has been sufficiently sure of where it belongs enough to chance anything else. It looks “Xylariaceous,” so it’s being called Xylaria for the time being.

edit: If this is hollow, that should rule out the need for any comparison between the two, as the other observation contains a pink context which, unless it deteriorates into hollow cavities in age, differentiates it considerably from this species. The observer was apparently unable to relocate the specimen to know for certain.

Same Phylum, different Classes
By: Chris Parrish (kitparrish)
2010-08-02 07:03:37 PDT (-0700)

Both genera are in the Phylum Ascomycota, but Dactylina is in the Class Lecanoromycetes (Family Parmeliaceae), while Xylaria is in the Class Sordariomycetes (Family Xylariaceae) (Myconet). Dactylina is hollow inside (suggesting inflated parchment paper), while Xylaria is solid. Interesting juxtaposition!

By: Danny Newman (myxomop)
2010-08-02 00:42:06 PDT (-0700)

Created: 2010-08-01 22:35:15 PDT (-0700)
Last modified: 2010-08-13 20:57:03 PDT (-0700)
Viewed: 167 times, last viewed: 2017-06-07 19:42:15 PDT (-0700)
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