Synalissina cladodes (Tuck.) M. Schultz & M. Prieto

in Prieto & al., Studies in Mycology, 109: 630, 2024. Basionym: Collema cladodes Tuck. - Gen. Lich.: 89, 1872
Synonyms: Lempholemma cladodes (Tuck.) Zahlbr.
Description: Thallus small-fruticose, homoiomerous, gelatinous when wet, dark olivaceous brown to black, forming spreading cushions, consisting of decumbent to erect, terete, often finely striate, mostly dichotomously branched, 1-2 mm long, 0.1-0.2 mm thick lobes with swollen, up to 0.3 mm wide apices containing initially globose, finally bursting open and cup-like hormocystangia producing hormocysts measuring 25-35 x 10-15 μm. Apothecia very rare, zeorine, terminal, globose, 0.2-0.4 mm across, with a convex, blackish disc, a thick thalline margin and a pale, thin proper margin, developing from ascogones arising in a spheroid tangle of generative hyphae. Proper exciple very thin, of parallel hyphae, K/I-; epithecium yellowish brown; hymenium and hypothecium colourless, I+ reddish brown, K/I+ blue; paraphyses mostly simple, not apically thickened, coherent; hypothecium colourless, K/I+ blue. Asci 8-spored, clavate, thin-walled, with a distinct amyloid outer cap, but no apical dome, Peccania-type. Ascospores 1-celled, hyaline, globose, 15-20 μm wide. Photobiont cyanobacterial (Nostoc), the individual cells 4-5 μm wide, arranged in chains. Spot tests: all negative. Chemistry: without lichen substances.
Growth form: Fruticose

Substrata: rocks
Photobiont: cyanobacteria, filamentous (e.g. Nostoc, Scytonema)
Reproductive strategy: mainly sexual
On otherwise dry surfaces with short periods of water seepage after rain

Commonnes-rarity: (info)

Alpine belt: very rare
Subalpine belt: very rare
Montane belt: absent
Dry submediterranean belt: absent
Humid submediterranean belt: absent
Padanian area: absent

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Source: Prieto M., Wedin M., Schultz M. 2024. Phylogeny, evolution and a re-classification of the Lichinomycetes. Studies in Mycology, 109: 595-655. - CC BY-NC-ND
Synalissina cladodes, branches shortly furcate, somewhat bent, surface striate (Schultz 08779). Scale bar: 1 mm


Curtis Randall Björk – CC BY-SA 4.0
British Columbia, Clearwater Valley, Flatiron Trail Date: 2009-04-03 On underhang of basalt cliff in open conifer-birch forest, calc-modified by seepage


Juri Nascimbene CC BY-SA 4.0
Italy, Veneto, BL, Vette di Felte


Juri Nascimbene CC BY-SA 4.0
Italy, Veneto, BL, Vette di Felte


Juri Nascimbene CC BY-SA 4.0
Italy, Veneto, BL, Vette di Felte


Juri Nascimbene CC BY-SA 4.0
Italy, Veneto, BL, Vette di Felte


Juri Nascimbene CC BY-SA 4.0
Italy, Veneto, BL, Vette di Felte


Juri Nascimbene CC BY-SA 4.0
Italy, Veneto, BL, Vette di Felte


Juri Nascimbene CC BY-SA 4.0
Italy, Veneto, BL, Vette di Felte


Juri Nascimbene CC BY-SA 4.0
Italy, Veneto, BL, Vette di Felte


Juri Nascimbene CC BY-SA 4.0
Italy, Veneto, BL, Vette di Felte


Juri Nascimbene CC BY-SA 4.0
Italy, Veneto, BL, Vette di Felte


Juri Nascimbene CC BY-SA 4.0
Italy, Veneto, BL, Vette di Felte


Manuel Gil
Spain, Canary Islands, Tenerife


Manuel Gil
Spain, Canary Islands, Tenerife


Samul Brinker – CC-BY-SA NC – Source: https://www.inaturalist.org/taxa/223158-Lempholemma-cladodes