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FIGURE 34. Parmotrema praesorediosum. A in Small island but great diversity: thirty six species of Parmotrema (Parmeliaceae, lichenized Ascomycota), including sixteen new species, on Réunion (Mascarenes), with additional data from the Western Indian Ocean
FIGURE 34. Parmotrema praesorediosum. A: Distribution on Réunion (UTM 2×2 km grid system); B: Bioclimatic characteristics of collection site (abbreviations and threshold values for thermotype and ombrotype horizons from Rivas-Martínez et al. 2011: 17–18); C: Gross morphology of thallus (Masson 974.4214); D: Sorediate lobes, with ± labriform and crescent-shaped marginal soralia (Masson 974.4215). Scale bars: A = 10 km; C = 10 mm; D = 3 mm.
FIGURE 31. Parmotrema odontatum. A in Small island but great diversity: thirty six species of Parmotrema (Parmeliaceae, lichenized Ascomycota), including sixteen new species, on Réunion (Mascarenes), with additional data from the Western Indian Ocean
FIGURE 31. Parmotrema odontatum. A: Distribution on Réunion (UTM 2×2 km grid system); B: Bioclimatic characteristics of collection sites (abbreviations and threshold values for thermotype and ombrotype horizons from Rivas-Martínez et al. 2011: 17–18); C: Gross morphology of thallus (Masson 974.4655); D: Apothecia of various ages, with smooth amphithecium, on lobes with eciliate margins (Masson 974.4655). Scale bars: A = 10 km; C = 20 mm; D = 8 mm.
FIGURE 44 in Small island but great diversity: thirty six species of Parmotrema (Parmeliaceae, lichenized Ascomycota), including sixteen new species, on Réunion (Mascarenes), with additional data from the Western Indian Ocean
FIGURE 44. Parmotrema mwaliense (holotype). A: Part of thallus showing the ciliate margin of the lobes, the numerous elongate, canaliculate and branched laciniae, and a mature apothecium with a perforate disc; B: Another part of thallus with ciliate and laciniate lobe margins. Scale bars: A, B = 5 mm.
FIGURE 27 in Small island but great diversity: thirty six species of Parmotrema (Parmeliaceae, lichenized Ascomycota), including sixteen new species, on Réunion (Mascarenes), with additional data from the Western Indian Ocean
FIGURE 27. Parmotrema cf. negrosorientale. A: Distribution on Réunion (UTM 2×2 km grid system); B: Bioclimatic characteristics of collection sites (abbreviations and threshold values for thermotype and ombrotype horizons from Rivas-Martínez et al. 2011: 17–18); C: Gross morphology of thallus (Masson 974.5061); D: Sorediate lobes with soralia terminal at the apex of laciniae, lower surface of sorediate laciniae ivory-white and erhizinate (Masson 974.5059). Scale bars: A = 10 km; C = 8 mm; D = 3 mm.
FIGURE 29. Parmotrema nephophilum. A in Small island but great diversity: thirty six species of Parmotrema (Parmeliaceae, lichenized Ascomycota), including sixteen new species, on Réunion (Mascarenes), with additional data from the Western Indian Ocean
FIGURE 29. Parmotrema nephophilum. A: Distribution of the isidiate/phyllidiate/laciniate form on Réunion (UTM 2×2 km grid system); B: Distribution of the sorediate form on Réunion (UTM 2×2 km grid system); C: Bioclimatic characteristics of collection sites (abbreviations and threshold values for thermotype and ombrotype horizons from Rivas-Martínez et al. 2011: 17–18), light dotted: only sorediate form, medium dotted: only isidiate/phyllidiate/laciniate form, heavy dotted: both forms; D: Gross morphology of thallus (holotype); E: Heavily phyllidiate/laciniate lobe (holotype); F: Sorediate lobe with marginal and submarginal soralia and granulose soredia (Masson 974.4716). Scale bars: A, B = 10 km; D = 10 mm; E = 4 mm; F = 2 mm.
FIGURE 28. Parmotrema nemorum. A in Small island but great diversity: thirty six species of Parmotrema (Parmeliaceae, lichenized Ascomycota), including sixteen new species, on Réunion (Mascarenes), with additional data from the Western Indian Ocean
FIGURE 28. Parmotrema nemorum. A: Distribution on Réunion (UTM 2×2 km grid system); B: Bioclimatic characteristics of collection sites (abbreviations and threshold values for thermotype and ombrotype horizons from Rivas-Martínez et al. 2011: 17–18); C: Amphithecium of a mature apothecium developing prominent and anastomosing veins with coarse and ciliate isidioid structures (holotype); D: Submarginal isidia, ± cylindrical or flattened, rather stout, simple, often with pycnidia, some apically ciliate (holotype); E: Gross morphology of thallus (Masson 974.4635). Scale bars: A = 10 km; C = 4 mm; D = 1 mm; E = 20 mm.
FIGURE 24. Parmotrema mellissii. A in Small island but great diversity: thirty six species of Parmotrema (Parmeliaceae, lichenized Ascomycota), including sixteen new species, on Réunion (Mascarenes), with additional data from the Western Indian Ocean
FIGURE 24. Parmotrema mellissii. A: Distribution on Réunion (UTM 2×2 km grid system); B: Bioclimatic characteristics of collection sites (abbreviations and threshold values for thermotype and ombrotype horizons from Rivas-Martínez et al. 2011: 17–18); C: Gross morphology of thallus (Masson 974.4480); D: Lobes with isidia often ciliate, developing into ± coralloid-branched isidioid outgrowths becoming ± sorediate (Masson 974.5070). Scale bars: A = 10 km; C = 10 mm; D = 4 mm.
FIGURE 25. Parmotrema mezierii. A in Small island but great diversity: thirty six species of Parmotrema (Parmeliaceae, lichenized Ascomycota), including sixteen new species, on Réunion (Mascarenes), with additional data from the Western Indian Ocean
FIGURE 25. Parmotrema mezierii. A: Distribution on Réunion (UTM 2×2 km grid system); B: Bioclimatic characteristics of collection sites (abbreviations and threshold values for thermotype and ombrotype horizons from Rivas-Martínez et al. 2011: 17–18); C & D: Isidiate lobes with isidia rapidly coralloid, and ± apically and/or laterally ciliate (C: Masson 974.3960, D: holotype); E: Gross morphology of thallus (holotype). Scale bars: A = 10 km; C, D = 4 mm; E = 10 mm.
FIGURE 23. Parmotrema meiospermum. A in Small island but great diversity: thirty six species of Parmotrema (Parmeliaceae, lichenized Ascomycota), including sixteen new species, on Réunion (Mascarenes), with additional data from the Western Indian Ocean
FIGURE 23. Parmotrema meiospermum. A: Distribution on Réunion (UTM 2×2 km grid system); B: Bioclimatic characteristics of collection sites (abbreviations and threshold values for thermotype and ombrotype horizons from Rivas-Martínez et al. 2011: 17–18); C: Gross morphology of thallus (Masson 974.4648); D: Apothecia with coralloid-isidiate margin (holotype). Scale bars: A = 10 km; C = 10 mm; D = 4 mm.
FIGURE 21. Parmotrema intonsum. A in Small island but great diversity: thirty six species of Parmotrema (Parmeliaceae, lichenized Ascomycota), including sixteen new species, on Réunion (Mascarenes), with additional data from the Western Indian Ocean
FIGURE 21. Parmotrema intonsum. A: Distribution on Réunion (UTM 2×2 km grid system); B: Bioclimatic characteristics of collection sites (abbreviations and threshold values for thermotype and ombrotype horizons from Rivas-Martínez et al. 2011: 17–18); C: Part of thallus with granular or cylindrical ciliate isidia and a mature apothecium with ± branched and ciliate outgrowths on margin (holotype); D: Part of thallus with ciliate phyllidia/laciniae and apothecia of various ages (Masson 974.0359); E: Gross morphology of thallus (holotype). Scale bars: A = 10 km; C = 5 mm; D = 4 mm; E = 10 mm.
FIGURE 18 in Small island but great diversity: thirty six species of Parmotrema (Parmeliaceae, lichenized Ascomycota), including sixteen new species, on Réunion (Mascarenes), with additional data from the Western Indian Ocean
FIGURE 18. Parmotrema cf. deflectens. A: Distribution on Réunion (UTM 2×2 km grid system); B: Bioclimatic characteristics of collection site (abbreviations and threshold values for thermotype and ombrotype horizons from Rivas-Martínez et al. 2011: 17–18); C: Ciliate sorediate lobes with marginal, linear interrupted to somewhat labriform soralia (Krog RE34/2 & Timdal); D: small marginal soralia tinged orange by skyrin, and fragile cortex cracking (Krog RE34/2 & Timdal). Scale bars: A = 10 km; C = 5 mm; D = 1 mm.
FIGURE 10 in Small island but great diversity: thirty six species of Parmotrema (Parmeliaceae, lichenized Ascomycota), including sixteen new species, on Réunion (Mascarenes), with additional data from the Western Indian Ocean
FIGURE 10. Comparison of the mean lengths (± SE) of the marginal cilia of 4 species of the P. subarnoldii group: P. subarnoldii (lectotype from Madagascar, 1 specimen from Rwanda), P. eleonomum (7 specimens from Réunion), P. brachyblepharum (8 specimens from Réunion), and P. udisilvestre (14 specimens from Réunion, 1 from Madagascar). Soralia of type A: marginal, linear or ± subcapitate or labriform; soralia of type B: submarginal, arising from pustule-like swellings, or forming from disintegration of the upper cortex.
FIGURE 6 in Small island but great diversity: thirty six species of Parmotrema (Parmeliaceae, lichenized Ascomycota), including sixteen new species, on Réunion (Mascarenes), with additional data from the Western Indian Ocean
FIGURE 6. Thin layer chromatograms in solvents A, B and C for eight undetermined ciliary pigments found in Parmotrema species. 1: Pink-violet pigment (= PV); 2: Pink pigment (= P1); 3: Pink pigment (= P2); 4: Blue-grey pigment (= BG); 5: Orange pigment (= O1); 6: Orange pigment (= O2); 7: Red pigment (= R1); 8: Red pigment (= R2). Control substances: atranorin (a) and norstictic acid (n).
FIGURE 3 in Small island but great diversity: thirty six species of Parmotrema (Parmeliaceae, lichenized Ascomycota), including sixteen new species, on Réunion (Mascarenes), with additional data from the Western Indian Ocean
FIGURE 3. Phylogeny of the Parmotrema species studied. Best ML tree resulted from a RaxML analysis of three loci (EF1-α, ITS, mtSSU) and 102 specimens. Punctelia toxodes was selected as the outgroup. Bootstrap values are represented above the branches, and thick branches have bootstrap support value ≥ 70. Results of the species delimitation analyses are summarized to the right of the terminal labels of the tree. The first column corresponds to the results of the Stacey analysis, while the second column corresponds to the results of the bPP analysis. Specimens attributed the same colour were reconstructed as part of the same putative species by the species delimitation analysis. Major medullary extrolites are also shown for each specimen.
FIGURE 26. Parmotrema mirum. A in Small island but great diversity: thirty six species of Parmotrema (Parmeliaceae, lichenized Ascomycota), including sixteen new species, on Réunion (Mascarenes), with additional data from the Western Indian Ocean
FIGURE 26. Parmotrema mirum. A: Distribution on Réunion (UTM 2×2 km grid system); B: Bioclimatic characteristics of collection sites (abbreviations and threshold values for thermotype and ombrotype horizons from Rivas-Martínez et al. 2011: 17–18); C: Two mature apothecia with well-developed and ciliate isidioid protuberances on the surface of the thalline exciple (Masson 974.4275); D: Isidia cylindrical to navicular, terete to ± flattened, mostly simple (Masson 974.4274); E: Gross morphology of thallus (holotype). Scale bars: A = 10 km; C, D = 3 mm; E = 10 mm.
FIGURE 20. Parmotrema eleonomum. A in Small island but great diversity: thirty six species of Parmotrema (Parmeliaceae, lichenized Ascomycota), including sixteen new species, on Réunion (Mascarenes), with additional data from the Western Indian Ocean
FIGURE 20. Parmotrema eleonomum. A: Distribution on Réunion (UTM 2×2 km grid system), lemon-yellow cell = specimens with molecular data, pale yellow cell with a cross = specimen without molecular data; B: Bioclimatic characteristics of collection sites (abbreviations and threshold values for thermotype and ombrotype horizons from Rivas-Martínez et al. 2011: 17–18); C & D: Sorediate lobes with conspicuous long cilia, and soralia terminal ± subcapitate on marginal teeth or very short laciniae, or linear discontinuous on lobe margins (C: holotype, D: Masson 974.4997); E: Gross morphology of thallus (holotype). Scale bars: A = 10 km; C = 1 mm; D = 4 mm; E = 10 mm.
FIGURE 14. Parmotrema crinitum. A in Small island but great diversity: thirty six species of Parmotrema (Parmeliaceae, lichenized Ascomycota), including sixteen new species, on Réunion (Mascarenes), with additional data from the Western Indian Ocean
FIGURE 14. Parmotrema crinitum. A: P. crinitum s. str.: distribution on Réunion (UTM 2×2 km grid system), lemon-yellow cells = specimens with molecular data, pale yellow cells with a cross = specimens without molecular data but with mature apothecia; B: P. cf. crinitum: distribution on Réunion (UTM 2×2 km grid system), specimens without apothecia and molecular data; C: Bioclimatic characteristics of collection sites (abbreviations and threshold values for thermotype and ombrotype horizons from Rivas-Martínez et al. 2011: 17–18), hatched: P. crinitum s. str., dotted: only P. cf. crinitum; D: Gross morphology of thallus (Masson 974.3889); E: Isidiate lobes with coralloid and ciliate isidia (Masson 974.3889); F: Apothecia with ciliate isidia on margin and amphithecium (Masson 974.4477). Scale bars: A, B = 10 km; D = 10 mm; E = 4 mm; F = 4 mm.
FIGURE 17. Parmotrema crossotum. A in Small island but great diversity: thirty six species of Parmotrema (Parmeliaceae, lichenized Ascomycota), including sixteen new species, on Réunion (Mascarenes), with additional data from the Western Indian Ocean
FIGURE 17. Parmotrema crossotum. A: Distribution on Réunion (UTM 2×2 km grid system); B: Bioclimatic characteristics of collection sites (abbreviations and threshold values for thermotype and ombrotype horizons from Rivas-Martínez et al. 2011: 17–18); C & D: Isidiate lobes with irregularly cylindrical or ± flattened, simple to ± branched, highly ciliate isidia (C: holotype, D: Masson 974.4130); E: Gross morphology of thallus (holotype). Scale bars: A = 10 km; C, D = 4 mm; E = 10 mm.
FIGURE 2 in Small island but great diversity: thirty six species of Parmotrema (Parmeliaceae, lichenized Ascomycota), including sixteen new species, on Réunion (Mascarenes), with additional data from the Western Indian Ocean
FIGURE 2. Phylogenetic relationships of the two new species Parmotrema orarium and P. intonsum among selected representatives of parmelioid taxa, resulted from a RaxML analysis on three loci (ITS, nuLSU, mtSSU) and 71 specimens. Bootstrap values are represented near the branches when ≥ 70.
FIGURE 19. Parmotrema dilatatum. A in Small island but great diversity: thirty six species of Parmotrema (Parmeliaceae, lichenized Ascomycota), including sixteen new species, on Réunion (Mascarenes), with additional data from the Western Indian Ocean
FIGURE 19. Parmotrema dilatatum. A: Distribution on Réunion (UTM 2×2 km grid system); B: Bioclimatic characteristics of collection site (abbreviations and threshold values for thermotype and ombrotype horizons from Rivas-Martínez et al. 2011: 17–18); C: Gross morphology of thallus (Masson 974.4112); D: Eciliate sorediate lobes, with young linear interrupted to somewhat labriform soralia, and older, ± subcapitate soralia on short ascending laciniae, finally ± coalescing on arbuscular rising structures (Masson 974.4112). Scale bars: A = 10 km; C = 10 mm; D = 4 mm.
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