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Three new species of siphuloid lichens, with a first key to the genus Parasiphula

Published online by Cambridge University Press:  13 February 2023

Gintaras Kantvilas*
Affiliation:
Tasmanian Herbarium, Tasmanian Museum and Art Gallery, P.O. Box 5058, UTAS LPO, Sandy Bay, Tasmania 7005, Australia
*
Author for correspondence: Gintaras Kantvilas. E-mail: Gintaras.Kantvilas@tmag.tas.gov.au

Abstract

The term ‘siphuloid’ is introduced for a suite of distinct lichen genera with a superficially similar foliose to fruticose morphology, notably Siphula, Siphulella, Siphulopsis, Parasiphula and Knightiellastrum. Three new species are described: Parasiphula squamosa Kantvilas (from Tasmania and New Zealand), characterized by a whitish grey, squamulose or minutely foliose thallus lacking lichen substances or containing traces of atranorin; Siphula capensis Kantvilas (from southern Africa), containing baeomycesic and squamatic acids, and characterized by robust, broadly flattened, rounded lobes with thickened apices; and S. crittendenii (from the Caribbean but with an outlying collection from Queensland, Australia), an epiphytic species containing thamnolic acid, with fragile, flattened lobes mostly to 10 mm long and 1−5 mm wide, with ragged or much-divided apices. Salient features of the species of Parasiphula are summarized and a first key for this genus is presented. Infrageneric problems in Siphula are also discussed briefly.

Type
Standard Paper
Copyright
Copyright © The Author(s), 2023. Published by Cambridge University Press on behalf of the British Lichen Society

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References

Galloway, DJ (1983) New taxa in the New Zealand lichen flora. New Zealand Journal of Botany 21, 191200.CrossRefGoogle Scholar
Grube, M and Kantvilas, G (2006) Siphula represents a remarkable case of morphological convergence in sterile lichens. Lichenologist 38, 241249.CrossRefGoogle Scholar
Hertel, H (1984) Über saxicole, lecideoide Flechten der Subantarktis. Beiheft zur Nova Hedwigia 79, 399499.Google Scholar
Kantvilas, G (1987) Siphula jamesii, a new lichen from south-western Tasmania. Nordic Journal of Botany 7, 585588.CrossRefGoogle Scholar
Kantvilas, G (1994) Siphula elixii, a new lichen from Tasmania and New Zealand. New Zealand Journal of Botany 32, 1720.CrossRefGoogle Scholar
Kantvilas, G (1996) Studies on the lichen genus Siphula in Tasmania I. S. complanata and its allies. Herzogia 12, 722.Google Scholar
Kantvilas, G (1998) Studies on the lichen genus Siphula in Tasmania II. The S. decumbens group. Herzogia 13, 119138.CrossRefGoogle Scholar
Kantvilas, G (2002) Studies on the lichen genus Siphula Fr. Bibliotheca Lichenologica 82, 3753.Google Scholar
Kantvilas, G (2004) New Australian species in the lichen genus Siphula Fr. Austrobaileya 6, 949955.Google Scholar
Kantvilas, G and Elix, JA (2002) The taxonomy, chemistry and morphology of some South American species of Siphula. Herzogia 15, 112.CrossRefGoogle Scholar
Kantvilas, G, Elix, JA and James, PW (1992) Siphulella, a new lichen genus from southwest Tasmania. Bryologist 95, 186191.CrossRefGoogle Scholar
Kantvilas, G, Zedda, L and Elix, JA (2003) A remarkable new species of Siphula (lichenized fungi) from South Africa. Herzogia 16, 2125.Google Scholar
Kantvilas, G, Kashiwadani, H and Moon, KH (2005) The lichen genus Siphula Fr. (Lecanorales) in East Asia. Journal of Japanese Botany 80, 208213.Google Scholar
Ludwig, LR, Knight, A and Kantvilas, G (2016) Discovery of ascomata in the Siphula decumbens group, and its placement in a separate genus, Abstracts of the 8th International Association for Lichenology Symposium, 15 August 2016, Helsinki, Finland, p. 168.Google Scholar
Ludwig, LR, Kantvilas, G, Nilsen, AR, Orlovich, DA, Ohmura, Y, Summerfield, TC, Wilk, K and Lord, JM (2020) A molecular-genetic reassessment of the circumscription of the lichen genus Icmadophila. Lichenologist 52, 213220.CrossRefGoogle Scholar
Marcano, V (2021 a) The genus Siphula Fr. (Icmadophilaceae, Lichenized Fungi) in Venezuela. Phytotaxa 489, 1026.CrossRefGoogle Scholar
Marcano, V (2021 b) Siphula paramensis V. Marcano & L. Castillo (Icmadophilaceae, Lichenized Fungi), a new species from the high paramo in Venezuela. Phytotaxa 512, 169178.CrossRefGoogle Scholar
Mathey, A (1971) Contribution à l'étude du genre Siphula (lichens) en Afrique. Nova Hedwigia 22, 795878.Google Scholar
Motiejūnaitė, J, Zhurbenko, MP, Suija, A and Kantvilas, G (2019) Lichenicolous ascomycetes on Siphula-like lichens, with a key to the species. Lichenologist 51, 4573.CrossRefGoogle Scholar
Obermayer, W and Kantvilas, G (2003) The identity of the lichens Siphula himalayensis and Lecanora teretiuscula. Herzogia 16, 2734.Google Scholar
Orange, A, James, PW and White, FJ (2010) Microchemical Methods for the Identification of Lichens. 2nd Edn. London: British Lichen Society.Google Scholar
Platt, JL and Spatafora, JW (1999) A re-examination of generic concepts of baeomycetoid lichens based on phylogenetic analyses of nuclear SSU and LSU ribosomal DNA. Lichenologist 31, 409418.CrossRefGoogle Scholar
Platt, JL and Spatafora, JW (2000) Evolutionary relationships of nonsexual lichenized fungi: molecular phylogenetic hypotheses for the genera Siphula and Thamnolia from SSU and LSU rDNA. Mycologia 92, 475487.CrossRefGoogle Scholar
Stenroos, SK and DePriest, PT (1998) SSU rDNA phylogeny of cladoniiform lichens. American Journal of Botany 85, 15481559.CrossRefGoogle ScholarPubMed
Stenroos, S, Myllys, L, Thell, A and Hyvönen, J (2002) Phylogenetic hypotheses: Cladoniaceae, Stereocaulaceae, Baeomycetaceae and Icmadophilaceae revisited. Mycological Progress 1, 267282.CrossRefGoogle Scholar