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 Add this item to the list   828232 Original description
Remarks (public):Remarks. Gyalidea koreana is similar to G. kawanae (Harada 1999), but differs in having larger apothecia (0.5–1.8 mm vs. 0.3–0.5 mm diam.), higher hymenium (100–120 µm vs. 70–75 µm high), longer and wider ascospores (27–32.5 × 9.5–11.5 µm vs. 15–24 × 5–8 µm). Gyalidea koreana differs from Gyalidea pacifica (Harada 1996) in having larger apothecia (0.5–1.8 mm vs. 0.2–0.6 mm diam.), higher hymenium (100–120 µm vs. 55–75 µm high) and wider ascospores (27–32.5 × 9.5–11.5 µm vs. 10–24 × 5–7 µm). 
Description type:Original description 
Description:Similar to Gyalidea pacifica, but differs in having larger apothecia, much thicker true exciple, higher hymenium and longer ascospores. Bottom part of outer side of exciple covered by white, tomentose hyphae. Gyalidea kawanae differs in more transversely septate ascospores constricted at septa. Typus: South Korea, Jeju-do, Yeongcheon-dong, Seogwipo, Jeju-si, site 21/4621, N33°18'02,18" E126°34'28,64", 318 m, on shaded volcanic rock, growing together with Porina sp. and Verrucaria sp., 5 July 2016, J. P. Halda, S.-O. Oh, J.-S. Park and D. Liu (KoLRI 39025 – holotype, KoLRI 39022 – isotype). Description Thallus epilithic, crustose, continuous, 5 cm across or more, film-like to finely granular, somewhat cracked, pale greenish grey with dark brown apothecia. Prothallus not observed. No goniocystangia (Harada 1999) has been observed. Photobiont green, cells 8–12 µm in diam. Apothecia 0.5–1.8 mm diam., to 0.2–0.25 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, in young apotecia margin pale brown. True exciple to 0.1 mm wide, permanent, usually slightly arising level of disc; in section 60–80 µm thick in the uppermost lateral portion, 80–90 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 100–120 µm high, hyaline, epihymenium pale brown to hyaline, subhymenium 30–40 µm thick, hyaline. Hypothecium brown, 100–110 µm thick. Paraphyses 1–1.5 µm in diam., branched, unseptated. Asci 8-spored, 90 × 15 µm, clavate. Ascospores submuriform with 4–7 cells seen, with 3–4 transverse septa and one longitudinal septum, without a perispore,(23–)27–32,5(–35) × (9–)9,5–11,5(–12) µm [x = 29,7 × 10,2 µm; SD 2,8; 1 µm; n = 50; l/w ratio = 3] in water. Ecology. On volcanic 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 country of the type locality. 
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