Keywords: HENRY IMSHAUG/ LICHENS/ SOUTH AMERICA/ SOUTHERN SUBPOLAR REGION/ SUBANTARCTIC/ TAXONOMY
Abstract: Ten new species in nine different genera are described from the Falkland Islands (Islas Malvinas): Bryonora granulata with a finely granular thallus containing perlatolic acid; Bryoria mariensis, a terricolous species with norstictic acid and unusual cortex cells; Carbonea hypopurpurea with a K+ purple hypothecium and a thallus containing confluentic and 2'-O-methylperlatolic acids; Caloplaca megalariicola lichenicolous on Megalaria grossa; Cladonia flammea with a red-orange coloration on the lower side of the primary squamules; Cliostomum falklandicum, on rocks and with a dispersed thallus containing only atranorin; Lepraria malouina with usnic and stictic acids; Rimularia andreaeicola, over bryophytes and lacking lichen substances; R. subpsephota, similar to R. psephota but with a discrete white thallus lacking norstictic acid; and Usnea austrocampestris, a straggling species in sect. Neuropogon from the mountain tops. Rimularia andreaeicola is also known from Tierra del Fuego and R. subpsephota from Tierra del Fuego and South Georgia, but the other species are known only from the Falkland Islands. The new combinations Carbonea agellata, C. subdeclinans, Cliostomum aeruginascens and C. violascens are also made; Lecidea interrupta Darb. and Lecidea protracta Darb. are reduced to synonymy with Lecanora xantholeuca (Müll. Arg.) Hertel; Rhizocarpon simillimum is reported for the first time from the Southern Hemisphere, from the Falkland Islands and New Zealand; and Bryoria chalybeiformis is reported for the first time from the Falkland Islands. © 2012 British Lichen Society.
Notes: New species: Bryonora granulata Fryday, Bryoria mariensis Øvstedal, Common & Fryday, Carbonea hypopurpurea Fryday, Caloplaca megalariicola Øvstedal, Cladonia flammea Øvstedal, Cliostomum falklandicum Fryday & Coppins, Lepraria malouina Øvstedal, Rimularia andreaeicola Fryday, Rimularia subpsephota Fryday, and Usnea austrocampestris Øvstedal; new combinations: Carbonea agellata (Darb.) Fryday, Carbonea subdeclinans (Müll. Arg.) Hertel ex Fryday, Cliostomum aeruginascens (Müll. Arg.) Fryday, and Cliostomum violascens (Müll. Arg.) Fryday
URL: http://dx.doi.org/10.1017/S0024282912000163
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Abstract: The results of the first molecular phylogenetic study of Pseudephebe are presented; a three-locus phylogeny. The genus is confirmed as monophyletic within the alectorioid clade of Parmeliaceae. Two major clades were recovered, which can be assigned to the two traditional taxa, P. minuscula and P. pubescens, with modifications of the species delimitation, especially the variable P. minuscula. These species are cryptic and cannot be confidently distinguished morphologically due to phenotypic convergence. Therefore, the use of P. pubescens aggr. is recommended for samples not molecularly analyzed. Contrary to previous studies, specimens of both species might have indistinct pseudocyphellae and also contain lichen substances; norstictic acid was detected in c. 60% of specimens tested. An SSU 1516 Group I intron is usually present in P. minuscula but always absent in P. pubescens. The species-level nomenclature is summarized and sequenced reference specimens (RefSpec) for both Pseudephebe species are selected. Sequences from Bryoria mariensis established that this name was a synonym of P. minuscula.
Notes: Molecular data do not support the taxa are currently circumscribed. Alectoria pacifica Stizenb. and Bryoria mariensis Øvstedal et al. placed in synonymy with Pseudephebe minuscula.
URL: https://www.cambridge.org/core/journals/lichenologist/article/microchemical-and-molecular-investigations-reveal-pseudephebe-species-as-cryptic-with-an-environmentally-modified-morphology/F2A46387CDE635A330DE7640C7CEF2D3
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Abstract: An annotated checklist of lichen-forming and lichenicolous fungi reported from the Falkland Islands is presented. A total of 408 taxa are reported: 402 species, and six additional infra-specific taxa (four subspecies, one variety and one forma), in 161 genera. Included in these are 15 species of lichenicolous fungi in 12 different genera. One hundred and fifty taxa are reported for the first time from the archipelago. Six new combinations are proposed: Lambiella andreaeicola (Fryday) Fryday, L. subpsephota (Fryday) Fryday, Notoparmelia kerguelensis (F. Wilson) Fryday, N. lindsayana (Øvstedal & Elix) Fryday, Palicella xantholeuca (Müll.Arg.) Fryday & Orange and Pseudephebe mariensis (Øvstedal, Common & Fryday) Øvstedal & Fryday.
Countries/Continents: South America
Notes: New: Lambiella andreaeicola (Fryday) Fryday (≡ Rimularia andreaeicola Fryday), L. subpsephota (Fryday) Fryday (≡ R. subpsephota Fryday), Notoparmelia kerguelensis (F.Wilson) Fryday (≡ Parmelia kerguelensis F.Wilson), N. lindsayana (Øvstedal & Elix) Fryday (≡ P. lindsayana Øvstedal & Elix), Palicella xantholeuca (Müll. Arg.) Fryday & Orange (≡ Lecidea xantholeuca Müll. Arg.), Pseudephebe mariensis (Øvstedal, Common & Fryday) Øvstedal & Fryday (≡ Bryoria mariensis Øvstedal).
URL: http://nhm2.uio.no/botanisk/lav/RLL/GLALIA/GLALIA_8(1).pdf
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Number of hits shown/total: 3/3.
Number of records in database: 53547.
Current date: 2024.04.26.OK