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FIGURE 42. Parmotrema udisilvestre. 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 42. Parmotrema udisilvestre. 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: Submarginal soralia arising from pustule-like swellings or forming from disintegration of the upper cortex of ± revolute lobe (holotype); D: Sorediate lobe with fragile, cracking and flaking upper cortex (Masson 974.4959); E: Gross morphology of thallus (Masson 974.4833). Scale bars: A = 10 km; C = 2 mm; D = 3 mm; E = 8 mm.
FIGURE 39. Parmotrema subdeflectens. 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 39. Parmotrema subdeflectens. 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: Sorediate lobes with marginal and often branched cilia, and terminal labriform or subcapitate soralia on very short laciniae (holotype); D: Sorediate lobes with marginal and ± linear labriform soralia (Masson 974.3946); E: Gross morphology of thallus (Masson 974.3946). Scale bars: A = 10 km; C = 4 mm; D = 3 mm; E = 10 mm.
FIGURE 38. Parmotrema subcorallinum. 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 38. Parmotrema subcorallinum. 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 974.4961); D: Lobes with irregular isidia, at first granular or cylindrical, then ± coralloid or arbuscular and inflated, often apically ciliate (Masson 974.4961). Scale bars: A = 10 km; C = 10 mm; D = 4 mm
FIGURE 35. Parmotrema reticulatum aggr. 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 35. Parmotrema reticulatum aggr. A: Distribution (UTM 2×2 km grid system) of specimens with molecular data on Réunion [= species 2 of Del-Prado et al. (2016)]; B: Distribution of specimens without molecular data on Réunion (UTM 2×2 km grid system); C: Bioclimatic characteristics of collection sites of specimens with molecular data (abbreviations and threshold values for thermotype and ombrotype horizons from Rivas-Martínez et al. 2011: 17–18); D: Gross morphology of thallus (Masson 974.4781); E: Part of thallus with apothecia of various ages (Masson 974.5069); F: Sorediate lobes with soralia capitate at the tip of marginal short laciniae, or submarginal ± linear at the apex of revolute lobe (Masson 974.4289). Scale bars: A, B = 10 km; D, E = 10 mm; F = 4 mm.
FIGURE 33. Parmotrema paramascarenense. 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 33. Parmotrema paramascarenense. 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: Sorediate arbusculae in old part of thallus (holotype); D: Soralia at the apex of tiny laciniae, ± labriform or subcapitate, in young part of thallus (holotype); E: Gross morphology of thallus (Kalb & Kalb 33656). Scale bars: A = 10 km; C, D = 4 mm; E = 8 mm.
FIGURE 32. Parmotrema orarium. 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 32. Parmotrema orarium. 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: Coastal stand of Pandanus utilis, a typical habitat for P. orarium on Réunion Island (Sainte-Rose, Bois Blanc, 13 August 2015); D: Gross morphology of thallus (holotype); E: Sorediate isidia (Masson 974.4646); F: Submarginal pustules, bursting into soredia (Masson 974.4221). Scale bars: A = 10 km; D = 20 mm; E = 1 mm; F = 2 mm.
FIGURE 37. Parmotrema robustum. 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 37. Parmotrema robustum. 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. 4044); D: Sorediate lobes with young soralia ± labriform or subcapitate at the apex of laciniae, then ± coalescing and slightly spreading submarginally with age (Masson 974.4826). Scale bars: A = 10 km; C = 10 mm; D = 4 mm
FIGURE 43 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 43. Parmotrema thomsonii (holotype of Parmelia pachysperma). A: Part of thallus with a mature apothecium; B: Lobes with white-maculate upper surface, and conspicuous verruciform marginal pycnidia with whitish ostiolar region. Scale bars: A = 5 mm; B = 2 mm.
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.
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