Halospora longispora (Cl. Roux & Nav.-Ros.) Hafellner
Bibl. Lichenol., 106: 89, 2011. Basionym: Merismatium deminutum subsp. longisporum Cl. Roux & Nav.-Ros. - in Roux & al., Mycotaxon, 84: 10, 2002.
Synonyms:
Distribution:
Description: Thallus not visible, not lichenized, growing on endolithic lichens and suppressing the formation of their ascomata. Perithecia (pseudothecia) black, 0.2-0.3 mm across, mostly developing in pits left by fallen ascomata of the host lichen, not fitting in size with the holes, being much smaller. Involucrellum absent; exciple brown to dark brown throughout, K+ darker brown, faintly violet around the ostiole; hyphae surrounding exciple colourless to brownish; hamathecium of short pseudoparaphyses and periphyses forming a crown above the asci and lining the ostiolar canal; hymenial gel I+ red, K/I+ blue. Asci 8-spored, subcylindrical to narrowly clavate, thick-walled when young, without ocular chamber, K/I-. Ascospores submuriform, with (3-)4-6(-7) transverse septa and (0-)1-4 longitudinal septa. brown, narrowly ellipsoid, (18-)24-29.5(-34) x (7.5-)8.5-12(-12,5) μm, 2-3.4(-4) times as long as wide, surrounded by a distinct halo at least when young. Photobiont absent. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.Note: closely related to H. deminuta, this poorly known lichenicolous fungus described from the Western Alps (France) seems to be an altitudinal vicariant of the former above treeline (Roux & al. 2002). To be looked for in the Italian Alps.
Growth form: Lichenicolous fungus
Substrata: rocks
Reproductive strategy: mainly sexual
paras endolithic lichens
Poorly known taxon in need of further study
Predictive model
ourtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/
14/9/2014 - Dorais - Côte-d'Or - (21) -
dét. Claude Roux
ourtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/
14/9/2014 - Dorais - Côte-d'Or - (21) -
dét. Claude Roux
ourtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/
14/9/2014 - Dorais - Côte-d'Or - (21) -
dét. Claude Roux
ourtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/
14/9/2014 - Dorais - Côte-d'Or - (21) -
dét. Claude Roux
Growth form: Lichenicolous fungus
Substrata: rocks
Reproductive strategy: mainly sexual
paras endolithic lichens
Poorly known taxon in need of further study
Predictive model
ourtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/
14/9/2014 - Dorais - Côte-d'Or - (21) - dét. Claude Roux
ourtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/
14/9/2014 - Dorais - Côte-d'Or - (21) - dét. Claude Roux
ourtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/
14/9/2014 - Dorais - Côte-d'Or - (21) - dét. Claude Roux
