Naetrocymbe rhododendri (Arnold) Hafellner & Türk

Stapfia, 76: 91, 2001 comb. inval.. Basionym: Arthopyrenia punctiformis f. rhododendri Arnold - Verh. Zool.-bot. Ges. Wien, 22: 304, 1872.
Synonyms: Arthopyrenia rhododendri (Arnold) Dalla Torre & Sarnth.
Distribution: N - TAA (Hinteregger 1994, Nascimbene & al. 2007b), Piem (Isocrono & al. 2004).
Description: Thallus crustose, endosubstratic to thinly episubstratic, whitish, yellowish white or whitish grey, without a clear prothallus. Perithecia black, 0.1-0.15 mm across, slightly immersed at base, hemispherical, solitary or in groups of 3-10. Involucrellum dimidiate, of compacted brown hyphae and bark cells, K-; exciple orange-brown to brown, c. 30 mm thick, surroundingthe centrum; hamathecium of branched, 1-1.5 μm thick paraphysoids; hymenial gel hemiamyloid. Asci 8-spored, obpyriform, fissitunicate, with two functional wall layers. Ascospores 1-septate, hyaline, clavate with unequal cells, 15-22(-25) x 3-6 μm., surrounded by a 0.5-0.8 μm thick perispore. Photobiont trentepohlioid. Spot tests: all negative. Chemistry: without lichen substances.
Note: on smooth bark of shrubs in subalpine heaths, to be looked for throughout the Alps.
Growth form: Fungus
Substrata: bark
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: rather 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
Herbarium samples

P.L. Nimis CC BY-SA 4.0
J. Nascimbene