Archive for lichenology
The "Archive for Lichenology" is a "paperless journal" which is published on the internet as pdf files and provides contributions on all fields of lichenology.
(Das "Archive for Lichenology" ist eine "papierlose" Zeitschrift, die in Form von PDF-Dateien im Internet publiziert wird und Beiträge zu allen Teilgebieten der Flechtenkunde (Lichenologie) umfasst. Die Reihe wird durch Felix Schumm herausgegeben und hat die ISSN 1868-4173.)
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In der Düsseldorfer Innenstadt und im südlichen Vorort Benrath wurde das Artenspektrum epiphytischer Flechten an freistehenden Bäumen erfasst. Unter den 26 Flechten sind fünf durch den Klimawandel begünstigte Arten (u.a. Punctelia borreri). Bis auf eine meiden diese die Innenstadt. Als Grund dafür wird die gegenüber dem Vorort höhere Immissionsbelastung und höhere relative Trockenheit vermutet (innerstädtische Wärmeinsel).
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Die Häufigkeit der beiden gegenüber Verkehrsimmissionen und städtischer Überwärmung toleranten Blattflechten Phaeophyscia nigricans und P. orbicularis bezogen auf die Deckung aller anderen epiphytischen Flechten wird als einfaches Instrument zur Bestimmung der Umweltbelastung einer Großstadt (Düsseldorf) überprüft.
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The lichenicolous fungus Sarcogyne bicolor H. Magn. was recovered as an Acarospora and is given the replacement name, Acarospora destructans. It is reported new from New Mexico. Two new species of Acarospora are described from New Mexico, Acarospora eganiana and A. worthingtoniana. A form or variety of A. glaucocarpa is treated as a species, Sarcogyne melaniza, an apparently rare taxa in Europe.
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Ten species of the lichen family Graphidaceae are treated in the ninth contribution to this series. Four species are new to science: Allographa cameroonensis Kalb & Schumm from Cameroon differs from A. grandis in having larger ascospores and in the lack of secondary lichen products. Allographa kuetchangiana Kalb & Schumm from Thailand differs from A. mexicana in having a permanent thalline cover of the ascomata and in having a whitish pruina on their top. Cruentotrema siamense Lücking & Kalb from Thailand differs from C. amazonum in having smaller ascomata and smaller ascospores. Ocellularia striata Kalb & Schumm from Thailand differs from O. jutaratiae in having smaller ascospores and in lacking the purplish, K+ greenish pigment which covers the remnants of the split proper exciple. Rhabdodiscus exutus (Hale) Kalb & Schumm is a new combination (Bas.: Ocellularia exuta Hale). Photographs of Allographa mexicana (Hale) Lücking & Kalb (including an isotype) show the variation of the ascomata and the differences to A. kuetchangiana. Allographa isidiata (Hale) Lücking & Kalb is reported from Ecuador, which is a new addition to the lichenobiota of this country and the second finding of this species after its description. Allographa plagiocarpa (Fée) Lücking & Kalb, before misidentified as A. mexicana, from Cartago Province is the second report of this species from Costa Rica. The chemistry of Ocellularia kohphanganensis Papong, Mangold & Lücking and the exact spelling of the specific epithet are corrected. Ocellularia macrocrocea Kalb is a new addition to the lichenobiota of Thailand where it is sometimes growing together with O. striata. The intraspecific variation of Ocellularia thelotremoides (Leight.) Hale ist discussed and the name is put on the correct place of the amended key to Thai Ocellularia species. Cochromatography of some Ocellularia species with a deep orange-yellow pigment together with a pure sample of skyrin in solvents A, B' and C showed identical Rf-values in all three solvent systems.
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New lichens from Africa
(2021)
The following species are described as new to science, mostly based on specimens collected by the first author: Candelariella flavosorediata from Réunion, Chiodecton leprarioides from Réunion, Lecanactis leprarica from Cameroon, Multisporidea nitida, which is a new species and a new, monotypic genus in the Malmideaceae from Réunion, Neoprotoparmelia fuscosorediata from Kenya, Pyrrhospora endaurantia from Kenya, and Tapellaria isidiata from Cameroon.
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Fascicle XVI of the exsiccate "K. KALB & A. APTROOT: LICHENES NEOTROPICI" (new name for "K. KALB: LICHENES NEOTROPIC" from fascicle XVI onwards) with 23 lichen specimens (No. 628–650) from Brazil, Chile, Dominican Republic, Ecuador, Kenya, Peru and Venezuela is distributed. Three species are described as new, namely Lopadium subcoralloideum Aptroot & Kalb, Lecanactis caceresiana Kalb & Aptroot and Rhizocarpon sipmanianum Kalb & Aptroot. The holotypes of the new species are deposited at Universidade Federal de Mato Grosso do Sul (UFMS). Range extensions are reported for Hypocenomyce tinderreyensis (new to the Neo-tropics; so far only known from Australia, but apparently austral), Ocellularia baorucensis (new to Brazil), Physcidia striata (recently described from Rondônia and the Venezuelean Amazon, and subsequently reported from Amapá and Brazilian Amazonas. The collection from Brazil/Mato Grosso do Sul represents a major range extension to the South), Tephromela campestricola (new to the Neotropics; not different in any way from European material) and Xanthoparmelia arvidssonii (new to Venezuela).