Observation 65884: Everniastrum Hale ex Sipman

When: 2011-04-16

Collection location: Kalatope wildlife Sanctuary, Dalhousie, Himachal Pradesh, India [Click for map]

Who: Alok Mahendroo (alok)

No specimen available

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Proposed Names

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Eye3 Eyes3
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Thanks Jason…
By: Alok Mahendroo (alok)
2011-04-26 11:10:33 CDT (-0500)

difficult to decide without a microscope… but I have kept a specimen… and in case I can get the microscope all the lichens I have collected till now can be studied further….

I agree
By: Jason Hollinger (jason)
2011-04-24 10:29:23 CDT (-0500)

Makes Heterodermia leucomelos look like a better guess. (Wait, but there are several species of Heterodermia listed on the Bhutan checklist which I’ve never heard of: comosa, diademata, dissecta, himalayensis, microphylla, pellucida, podocarpa, togashii, verruculifera. Some of those names sound unpromising, but how do we know without literature??)

[Edit: I just noticed the squarrose cilia. This does not look like H. leucomelos. But I’d still stick with Heterodermia.]

Black undersurface…
By: Alok Mahendroo (alok)
2011-04-24 10:20:13 CDT (-0500)

It does not seem to be black ….

Thanks, Chris
By: Jason Hollinger (jason)
2011-04-21 13:52:33 CDT (-0500)

I wasn’t sure whether the genus has a black undersurface throughout the world, or only in the one species which occurs here in the Appalachians. It appears to have much more in common with Hypotrachyna than Heterodermia (it’s in the same family as Hypotrachyna at very least :).

striking life form
By: Chris Parrish (kitparrish)
2011-04-21 13:41:14 CDT (-0500)

This striking life form is illustrated in several photos of the genus Heterodermia and photos of the genus Everniastrum on the web site Pictures of Tropical Lichens. Most of the Everniastrum in these photos seem to be black or blackish below.

Consider Heterodermia, too
By: Jason Hollinger (jason)
2011-04-21 12:57:46 CDT (-0500)

e.g., H. leucomela is somewhat similar to this (though more obviously without cortex underneath, can’t tell if yours has cortex underneath or not)

Created: 2011-04-21 12:26:05 CDT (-0500)
Last modified: 2011-04-24 10:20:53 CDT (-0500)
Viewed: 94 times, last viewed: 2018-11-27 14:38:24 CST (-0600)
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