Lempholemma condensatum (Arnold) Zahlbr.

Cat. Lich. Univ., 3: 20, 1925. Basionym: Plectopsora botryosa var. condensata Arnold - Verh. zool.-bot. Ges. Wien, 19: 655, 1869
Synonyms:
Distribution: N - TAA.
Description: Thallus small-fruticose, homoiomerous, gelatinous when wet, dark olivaceous brown to black, consisting of 0.1-0.2(-0.3) mm thick and up to 1.2 mm long, furcate, ascending to erect lobes, forming dense, 3-8 mm wide, convex cushions. Apothecia rare, terminal, rounded, semi-immersed, to 0.2 mm across, with a brown, finally convex disc. Proper exciple very thin, of parallel hyphae; epithecium brownish; hymenium colourless, I+ reddish brown, K/I+ blue; paraphyses mostly simple, not apically thickened, adglutinated; hypothecium colourless. Asci 8-spored, cylindrical, without a distinct apical apparatus. Ascospores 1-celled, hyaline, subglobose to broadly ellipsoid, 13-18 x 6-10 μm. Photobiont cyanobacterial (Nostoc), th idividual cells arranged in short chains, 4-5 μm wide. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Note: very closely related to L. intricatum, with thalli forming dense black cushions; on periodically wetted boulders and cliffs of dolomite and calcareous rocks, ecology otherwise poorly known; reported from scattered localities in the Eastern Alps, but distribution insufficiently known.
Growth form: Fruticose

Substrata: rocks
Photobiont: cyanobacteria, filamentous (e.g. Nostoc, Scytonema)
Reproductive strategy: mainly sexual
Poorly known taxon in need of further study

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: extremely rare
Oromediterranean belt: absent
Montane belt: extremely rare
Submediterranean belt: extremely rare
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: absent
Dry mediterranean belt: absent

pH of the substrata:

12345

Solar irradiation:

12345

Aridity:

12345

Eutrophication:

12345

Poleotolerance:

0123

Altitudinal distribution:

123456


Predictive model


Pier Luigi Nimis - CC BY-SA 4.0
TSB 24284bis



Pier Luigi Nimis - CC BY-SA 4.0
TSB 24284bis



Curtis Randall Björk – CC BY-SA 4.0
British Columbia, Clearwater Valley Date: 2015-09-08 On rock at river shore
as Lempholemma intricatum