Cladonia bacilliformis (Nyl.) Sarnth.

Ă–sterr. bot. Z., 46: 264, 1896. Basionym: Cladonia carneola var. bacilliformis Nyl. - Syn. Meth. Lich., 1, 2: 201, 1860.
Distribution: N - TAA (Dalla Torre & Sarnthein 1902).
Description: Primary thallus squamulose, persistent or usually evanescent, the squamules thin, 0.2-0.3 mm wide, to 3 mm long, entire to crenate-lobate, yellowish green above, sorediate. Podetia bacilliform, bright yellowish green, (5-)10-20(-25) mm tall (usually up to 10 mm), up to 1 mm thick, simple, slightly corticate only at the base, otherwise densely farinose-sorediate, cupless or more rarely with very narrow cups. Apothecia very rare, ochraceous or very pale brown. Asci 8-spored, clavate, thickened at apex, with a K/I+ blue tholus and a K/I+ strongly blue outer gelatinous sheath, Cladonia-type. Ascospores 1-celled, hyaline, ellipsoid. Pycnidia on primary squamules or at tips of podetia, ovoid to cylindrical, with a colourless jelly. Conidia baciliform. Photobiont chlorococcoid. Spot tests: K-, C-, KC+ yellow P-, UV-. Chemistry: usnic, barbatic, and and 4-O-demethylbarbatic acids.
Note: a boreal-montane, mainly lignicolous species, also known from the French, Swiss and Austrian Alps, probably more widespread also along the Italian Alps, in montane to subalpine coniferous forests.
Growth form: Fruticose

Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly asexual, by soredia, or soredia-like structures (e.g. blastidia)

Commonnes-rarity: (info)

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

pH of the substrata:


Solar irradiation:








Altitudinal distribution:


Predictive model

E. Pittao CC BY-SA 04
TSB 28685

P.L. Nimis CC BY-SA 4.0
TSB 28685

E. Pittao; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (28685)