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 Add this item to the list   828227 Original description
   
Remarks (public):Additional specimen examined: South Korea, Jeju-do, Seogwipo-si, Mt Halla, (Yeongsil Trail), 33°21’20.93”N, 126°30’01.14”E, 1388 m, 21 July 2015, J. P. Halda, S.-O. Oh. & D. Liu 151728 (KoLRI 035421) 
Description type:Original description 
Description:Similar to Gyalidea pacifica, but differs in having larger apothecia, much thicker true exciple, higher hymenium, halonate and much wider ascospores. Outer side of exciple covered by white, tomentose hyphae. Gyalidea kawanae is characterized by transversely septate ascospores constricted at septa. Typus: South Korea, Jeju-do, Seogwipo-si, Donnaeko-ro, Donnaeko, 33º18’04.3”N, 126º34’53.07”E, ca. 330 m, on rock, growing together with Verrucaria sp. and mosses, 19 June 2014, J. P. Halda 140420–2 (KoLRI 022815 – holotype), 140414–1 (KoLRI 022807 – isotype). Thallus epilithic, crustose, continuous, 10 cm across or more, film-like, somewhat thicker and cracked with portions having tendency to be exfoliated, especially in the centre, pale greenish grey to whitish to dull green with dark brown to violet apothecia. Prothallus not observed, however black line to 0.1–0.15 mm wide in places of contact with other crustose lichens often present. Apothecia 0.3–1 mm diam., to 0.15–0.2 mm thick in section, lecideine, mainly regularly rounded, sometimes aggregated in groups to 2–3, dark brown-violet with distinct white tomentum on underside; disc plane, concolorous with margin. True exciple to 0.1 mm wide, permanent, usually slightly arising level of disc; in section 50–60 µm thick in the uppermost lateral portion, 60–70 µm thick in lower lateral portion and 80–100 µm thick in basal portion, brown to dark brown. Single hyaline hairs on outer side forming by single hyphae directed downwards to (15–)20–35(–40) µm long gradually thickening towards the tips forming almost byssoid layer at the lowermost part of the lateral portion of exciple to 25–30 µm thick. Thalline exciple absent. Hymenium 85–95 µm high, hyaline, epihymenium hyaline indistinct, subhymenium 20–25(–40) µm thick, somewhat brown. Paraphyses 1–1.5 µm in diam., branched and septate. Asci 8-spored, 75 × 15 µm, clavate. Ascospores submuriform with 7–8–9 cells seen, with 3–4 transverse septa and one longitudinal septum, halonate (halo to 1.5–1.8 µm thick), (18–)19–24(–26) × (8–)9–11(–12) µm [x = 21,4 × 9,8 µm; SD 2,4; 0,9 µm; n = 82; l/w ratio = 2,2] in water. Ecology. On rock in very shaded and moisture conditions. Distribution and habitat. It is so far known only from type collection, Jeju-do Island, South Korea. Etymology. It is named after Josef Poelt, well-known German lichenologist, in recognition of his numerous contributions in lichenology. Remarks. Gyalidea poeltii is similar to G. japonica, but differs in having larger apothecia (0.3–1 mm vs. 0.1–0.3 mm diam.), much thicker true exciple (50–100 µm vs. to 30 µm thick), higher hymenium (85–95 µm vs. 60–85 µm high), halonate (halo to 1.5–1.8 µm thick) and longer and wider ascospores (19–23(–24) × (8–)9–10(–12) µm vs. 15–20 × 7–9 µm). Gyalidea poeltii differs from Gyalidea pacifica in having larger apothecia (0.3–1 mm vs. 0.2–0.6 mm diam.), much thicker true exciple (50–100 µm vs. to 40–75 µm thick), higher hymenium (85–95 µm vs. 55–75 µm high), halonate (halo to 1.5–1.8 µm thick) and much wider ascospores (19–23(–24) × (8–)9–10(–12) µm vs. 10–24 × 5–7 µm). 
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