Observation 102237: Lecidella stigmatea (Ach.) Hertel & Leuckert
When: 2011-09-28
(34.0803° -118.7473° 635m)
Herbarium specimen reported

Notes: HABITAT oldgrowth chaparral and conglomerate outcrops at top of high transverse ridge; SUBSTRATE north face of conglomerate outcrop on top of ridge; ASPECT shaded; NOTES whitish subsquamulose crust, clustered flexuous lecideine apothecia, rims black thin even contorted, disks blackish red brown epruinose contorted, thallus K+y C- KC- UV- 350-375nm, epihymenium brown POL- clearing in K?, exciple of densely radiating hyphae and opaque to brownish toward margin, algae underneath apothecia, hymenium and hypothecium hyaline, exciple and hypothecium finely POL+ clearing in K, paraphyses well-branched and not separating easily even in K, asci with KI+ blue thollus and KI- tube?; SPORES 8 per ascus, simple, smooth, hyaline, irregularly ellipsoid with 1-few oil drops, 10-15 × 4-7 µm (mostly immature?).

Images

240128
20110928-30.jpg
Large very-rugose shaded patch.
240129
20110928-31.jpg
Large very-rugose shaded patch, closer.
240130
20110928-301.jpg
Scattered apothecia, at 10x, stacked.
240131
20110928-302.jpg
Apothecia, at 30x, stacked.
240132
20110928-153.jpg
Apothecial section, in water, at 100×.
240133
20110928-154.jpg
Apothecial section, in water, at 100x, cross-polarized.

Proposed Names

29% (1)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Just a cheap-o dissecting microscope and a point-and-shoot
By: Jason Hollinger (jason)
2016-01-23 21:27:31 EST (-0500)

I think this was the setup shown on my profile page. I’ve gotten really good at holding the camera perfectly stable while taking a few dozen photos, each focused slightly closer than the last. There is software that will stitch these “stacks” of photos together into a single high-depth-of-field photo. There are far, far better rigs out there, but mine cost… $0! ;)

What do you use to get the close-up pics on these?
By: James Bailey (Silversea_Starsong)
2016-01-23 21:15:14 EST (-0500)

Personally interested…

Created: 2012-07-20 02:14:52 EDT (-0400)
Last modified: 2015-10-05 18:58:35 EDT (-0400)
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