Observation 298102: Leptogium (Ach.) Gray


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I have a specimen from NM whose photo is very similar
By: Jason Hollinger (jason)
2017-11-11 13:55:08 CST (-0500)

I’ll see if I have it with me. It was from 2011, so I don’t trust the id! :)

re: L. “denticulatum”
By: James Bailey (Silversea_Starsong)
2017-11-11 13:41:34 CST (-0500)

Looks like it might be the most likely option. From CNALH:

“The description above corresponds to Sierk (1964) and is one of the most common Leptogiums on acidic rocks at mid-elevations in the Sonoran Region. Unfortunately this description does not correspond well to the type material (Jørgensen 1977), and an alternative name is not readily available.”

Leptogium rugosum is also known from these mountains…
By: James Bailey (Silversea_Starsong)
2017-11-11 13:38:55 CST (-0500)

Funny you should ask Jason. It wasn’t until I was heading back that I realized I should have checked the underside. I didn’t make that mistake for the next one…

Was this tomentose underneath?
By: Jason Hollinger (jason)
2017-11-11 03:29:45 CST (-0500)

I see some isidia and/or phyllidia, but even zoomed all the way in it’s hard to characterize. I guess it’s got to be one of L. burnetiae, L. cyanescens or L. joergensenii (= L. “denticulatum” in Sonoran Flora; see Kitaura et al, 2015, Leptogium denticulatum and some morphologically related species, The Bryologist 118(1): 11-21).

Created: 2017-11-11 02:32:34 CST (-0500)
Last modified: 2017-11-13 15:41:51 CST (-0500)
Viewed: 44 times, last viewed: 2019-09-04 03:00:15 CDT (-0400)
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