Observation 102880: Catillaria lenticularis (Ach.) Th. Fr.
When: 2011-09-28
(34.0821° -118.7521° 608m)
Herbarium specimen reported

Notes: HABITAT oldgrowth chaparral and conglomerate outcrops at top of high transverse ridge; SUBSTRATE north face of conglomerate cliff; ASPECT shaded; NOTES endolithic, tiny rimmed black apothecia, epihymenium and exciple blue-black POL-, hymenium and hypothecium hyaline POL-, algae scattered below among crystals from substrate, asci KI+ blue tip and walls small, paraphyses branched and hard to separate; SPORES 8 per ascus?, fusiform, septate, hyaline, smooth, ~8-10 × 2-3 µm.

K. Knudsen says it has Catillaria-type thollus: deep blue without any distinct structures within; and that this smaller than usual, but he has a nearby specimen that looks the same. Micarea erratica has deep red-brown hypothecium and broader nonseptate spores.


Thallus, at 30×.
Apothecial section, in water, at 400×.
Apothecial section, in water, at 400x, cross-polarized.

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Created: 2012-07-26 03:35:46 EDT (-0400)
Last modified: 2012-07-26 03:35:49 EDT (-0400)
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