Lichenomphalia alpina (Britzelm.) Redhead, Lutzoni, Moncalvo & Vilgalys

Mycotaxon, 83: 36, 2002. Basionym: Agaricus alpinus Britzelm. - Ber. naturhist. Ver. Augsburg 30: 13, 1890.
Synonyms: Botrydina luteovitellina (Pilát & Nannf.) Redhead & Kuyper; Botrydina vulgaris Bréb. p.p.; Cantharellus dovrefjeldiensis Henn. & Kirschst.; Gerronema alpinum (Britzelm.) Bresinsky & Stangl; Gerronema luteovitellinum (Pilát & Nannf.) Singer; Omphalia alpina (Britzelm.) Sacc.; Omphalia flava (Cooke) F.H. Møller; Omphalia luteovitellina Pilát & Nannf.; Omphalia umbellifera var. citrina (Quél.) Sacc.; Omphalina alpina (Britzelm.) Bresinsky & Stangl; Omphalina flava (Cooke) M. Lange; Omphalina luteovitellina (Pilát & Nannf.) M. Lange
Distribution: N - TAA (Nascimbene & al. 2007, 2022).
Description: Thallus crustose, episubstratic, forming a soft, gelatinous (when wet), green to dark green film made of spherical granules consisting of clumps of algal cells incompletely surrounded by appressed pseudoparenchymatous hyphae. Hyphae and cortical cells of granules more or less thickened, the walls 1-1.5 µm. Clamp connections absent in all hyphae. Basidiocarps not lichenized, with a 0.5-1.5 cm wide, bright yellow to orange-yellow, omphaloid, marginally striate cap, concolorous or slightly paler, decurrent, veined and sometimes forked lamellae, and a 1-1.5 cm high, 1.5-2.5 mm thick stipe which is more or less concolourous with cap, and pubescent throughout. Basidia clavate, mostly with 4 sterigmata (rarely with 1 or 2 sterigmata). Basidiospores 1-celled, hyaline, ellipsoid, 6.5-9.5 x 3.5-4.5 µm, thin-walled. Photobiont chlorococcoid (Coccomyxa). Spot tests: all negative. Chemistry: thallus without lichen substances.
Note: a basidiolichen of acid organic soil, most common around treeline; perhaps more widespread in the Alps but overlooked by lichenologists.
Growth form: Crustose
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: extremely rare
Subalpine belt: very rare
Oromediterranean belt: absent
Montane belt: absent
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

Einar Timdal - Source: - CC BY-NC

Author: Edler Soto Medina. Source: CC BY-SA-NC