Observation 10442: Lichinella nigritella (Lettau) P. Moreno & Egea

small dwarf-fruticose jelly lichen, on limestone, along cracks and fissures
THALLUS: black, erect crisped lobes, covered with minute granules (not readily visible even at 30x), stratified in section under LM, algae concentrated near surface, thin loosely interwoven hyphae in center
ALGA: cyanobacterium (chroococcoid), multi-celled globose clusters
APOTHECIA: none seen (should be thallinocarps so they would not be easy to find)

This is very common in the desert southwest (perhaps even ubiquitous), but only a dedicated lichenologist would care enough about the little black marks lining all the cracks and divots of desert rock outcrops to look closely enough to notice that they are actually lichens.


10x magnification
30x magnification
thallus section, in water, at 400x
cyanobacteria, in water, at 1000x

Proposed Names

87% (1)
Eye3 Eyes3
Used references: Nash’s Sonoran Flora
Based on microscopic features

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2008-09-06 00:27:58 0430 (0430)
Last modified: 2008-09-06 00:27:58 0430 (0430)
Viewed: 160 times, last viewed: 2018-07-16 23:30:57 0430 (0430)