Arthonia diploiciae Calat. & Diederich
in Calatayud & al., Mycotaxon, 55: 366, 1995.
Synonyms:
Distribution: C - Tosc (Herb. von Brackel 372), Sar (Hafellner 1995b, Rizzi & al. 2011, Brackel 2016). S - Camp (Puntillo & Brackel 2016, Brackel 2016, 2021).
Description: Thallus inapparent, not lichenized, developing on the thalli of Diploicia canescens. Apothecia arthonioid, emarginate, numerous and aggregated into dark spots, sessile, 0.07-0.13 mm across, black, convex, with a rough surface. Proper exciple poorly developed; epithecium brown, 2-5 µm high; hymenium colourless to pale brown, 25-35 µm high, I+ red, K/I+ blue; paraphysoids branched and anastomosing, 2-3 µm thick, the apical cells 4-5 µm wide; hypothecium pale brown to brown, 20-35 µm high. Asci 4-spored, subglobose to broadly clavate, semi-fissitunicate, with a large apical dome and a distinct ocular chamber, with a minute K/I+ blue ring in the tholus, Arthonia-type. Ascospores 1-septate, hyaline, clavate or obovate, one of the 2 cells attenuated, 8-13 x 3.5-5 µm, smooth-walled. Photobiont absent. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.Note: a recently-described lichenicolous fungus growing on Diploicia canescens, to be looked for further, especially in Tyrrhenian Italy.
Growth form: Lichenicolous fungus
Substrata: rocks
Reproductive strategy: mainly sexual
Most common in areas with a humid-warm climate (e.g. most of Tyrrenian Italy)
paras Diploicia canescens
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Oromediterranean belt: absent
Montane belt: absent
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: very rare
Humid mediterranean belt: rare
Dry mediterranean belt: absent
Predictive model
Herbarium samples
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_A/Textes_A3/Arthonia_diploiciae.htm
France, Danièle et Olivier Gonnet - mars et octobre 2014 - Corse
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_A/Textes_A3/Arthonia_diploiciae.htm
France, Danièle et Olivier Gonnet - mars et octobre 2014 - Corse
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_A/Textes_A3/Arthonia_diploiciae.htm
France, Danièle et Olivier Gonnet - mars et octobre 2014 - Corse
Smithsonian Institution, National Museum of Natural History, Department of Botany https://lichenportal.org/cnalh/collections/individual/index.php?occid=2790284; Owner: CC BY-SA 3.0
Smithsonian Institution, National Museum of Natural History, Department of Botany – Source: https://lichenportal.org/cnalh/collections/individual/index.php?occid=2790284; Owner: CC BY-SA 3.0
Growth form: Lichenicolous fungus
Substrata: rocks
Reproductive strategy: mainly sexual
Most common in areas with a humid-warm climate (e.g. most of Tyrrenian Italy)
paras Diploicia canescens
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Oromediterranean belt: absent
Montane belt: absent
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: very rare
Humid mediterranean belt: rare
Dry mediterranean belt: absent
Predictive model
| Herbarium samples |
Index Fungorum
GBIF
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_A/Textes_A3/Arthonia_diploiciae.htm
France, Danièle et Olivier Gonnet - mars et octobre 2014 - Corse
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_A/Textes_A3/Arthonia_diploiciae.htm
France, Danièle et Olivier Gonnet - mars et octobre 2014 - Corse
Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_A/Textes_A3/Arthonia_diploiciae.htm
France, Danièle et Olivier Gonnet - mars et octobre 2014 - Corse
Smithsonian Institution, National Museum of Natural History, Department of Botany https://lichenportal.org/cnalh/collections/individual/index.php?occid=2790284; Owner: CC BY-SA 3.0
