Rhizocarpon dinothetes Hertel & Leuckert
Herzogia, 5: 27, 1979.
Synonyms:
Distribution: C - Sar (Brackel & Berger 2019).
Description: Thallus crustose, areolate, greenish yellow, shiny, forming more or less orbicular, 3-8 mm wide patches on the thalli of Protoparmelia-species. Medulla white, I-. Apothecia lecideine, black, constricted at base, round, 0.4-0.7 mm across, mostly developing inbetween the areoles, with an initially flat, then strongly convex disc and an initially thick and wavy, finally thinner proper margin. Proper exciple well-developed, with a 30-40 μm wide, purple-black rim, colourless within; epithecium brown-black, inspersed with blackish granules, K+ purple-red; hymenium colourless, c. 130 μm high; paraphysoids strongly coherent, richly branched and anastomosing, the apical cells sometimes slightly capitate; hypothecium brown-black. Asci 8-spored, clavate, fissitunicate, with a well-developed tholus that is K/I- in lower part and K/I+ blue near the apex, lacking an ocular chamber, Rhizocarpon-type. Ascospores submuriform to weakly muriform, usually with 3 transverse septa and 1-2 longitudinal septa, with (4-)5-12(-16) cells visible in optical view, dark brown, ellipsoid, 13.5-25(-28) x (7-)8.5-12(-15) μm, halonate when young. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-. Chemistry: cortex with rhizocarpic acid.Note: on siliceous rocks near and above treeline, starting the life-cycle on the thalli of Protoparmelia badia; probably present also in the Italian Alps, and to be looked for there.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
paras Protoparmelia
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Oromediterranean belt: very rare
Montane belt: very rare
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: absent
Dry mediterranean belt: absent
Predictive model
Herbarium samples
Einar Timdal http://nhm2.uio.no/lav/web/index.html - CC BY-NC
Einar Timdal - Source: http://nhm2.uio.no/lav/web/index.html - CC BY-NC
Detail from: https://gzu.jacq.org/GZU000286027
GZU000286027 - Hertel,H. 15921 Date 1973-08-31
Location Austria / Tirol
Label Österreich, Tirol, Tuxer Voralpen: Gipfel des Glungezer, SW oberhalb Innsbruck ; Alt. 2676 m
Habitat über Lecanora badia an Glimmerschiefer-Felsen
Photo by Einar Timdal - Source: https://nhm2.uio.no/lav/web/index.html
Norway - O-L142050
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
paras Protoparmelia
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Oromediterranean belt: very rare
Montane belt: very rare
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: absent
Dry mediterranean belt: absent
Predictive model
| Herbarium samples |
INDEX FUNGORUM
GBIF
Einar Timdal http://nhm2.uio.no/lav/web/index.html - CC BY-NC
Einar Timdal - Source: http://nhm2.uio.no/lav/web/index.html - CC BY-NC
Detail from: https://gzu.jacq.org/GZU000286027
GZU000286027 - Hertel,H. 15921 Date 1973-08-31 Location Austria / Tirol Label Österreich, Tirol, Tuxer Voralpen: Gipfel des Glungezer, SW oberhalb Innsbruck ; Alt. 2676 m Habitat über Lecanora badia an Glimmerschiefer-Felsen
