taxonID	type	description	language	source
837AC84FFFF81857CBC9F91FFC35FC2A.taxon	materials_examined	Type: — CHINA. Hainan: Mt. Wuzhi, 1600 m, 18.53 ° N, 109.41 ° E, bryophytes on siliceous rock, 16 December 2000, Man-Rong Huang 391 (Holotype, HMAS-L). Thallus crustose, bryophilous, grey-brown, composed of small verrucae, without a distinct margin. Verrucae granular, 0.1 – 0.15 mm diam. Soredia and isidia absent. Photobiont yellow green, globular, 5 – 7.5 μm diam. Apothecia sessile, black, biatorine, 1.5 – 2.5 (– 3) mm diam.; disc plane to slightly concave at first, becoming slightly convex when mature; margin mostly grey-brown, persistent; proper exciple cupular with radiating hyphae, light-brown to brown-red, 50 – 75 μm wide; hypothecium 75 – 87 (– 100) μm high, arnoldiana-brown, K + intensifying red-brown to red, H + orange-red, N + red; hymenium 112 – 137 μm high, hyaline to pale brown-red, I + blue; epihymenium cinereorufa-green, K + intensifying greenish, H –, N + red; paraphyses simple or sparingly branched at the tips, ca. 1 μm wide, not swollen at the apex, separating in K, ± conglutinate at the epihymenium; ascus 8 - spored, cylindrical, 88 – 108 × 18 – 23 (– 25) μm, Biatora - type; ascospores 1 - septate, hyaline, ellipsoid, (22) – 24 – (25) × (9) – 10 μm (n = 27). Pycnidia not observed. Chemistry: Cortex K + yellow, C –, KC –, Pd –; medulla K + yellow, C –, KC –, Pd –. TLC: atranorin, zeorin.	en	Su, Qing-Xia, Ren, Qiang (2017): A new species of Megalaria (Ascomycota, Ramalinaceae) and M. laureri new to mainland China. Phytotaxa 313 (1): 147-150, DOI: 10.11646/phytotaxa.313.1.13, URL: http://dx.doi.org/10.11646/phytotaxa.313.1.13
837AC84FFFF81857CBC9F91FFC35FC2A.taxon	distribution	Distribution: — The type specimen was collected from National Protective Area of Wuzhishan of Hainan at an altitude of 1600 m. This area has a tropical monsoon climate with a mean annual temperature of 22.4 ° C, average annual precipitation of 1690 mm, an annual average relative humidity of 84 % and mean annual sunshine of about 2000 hours. This species occurs on bryophytes over siliceous rock, and it is only known from the type locality.	en	Su, Qing-Xia, Ren, Qiang (2017): A new species of Megalaria (Ascomycota, Ramalinaceae) and M. laureri new to mainland China. Phytotaxa 313 (1): 147-150, DOI: 10.11646/phytotaxa.313.1.13, URL: http://dx.doi.org/10.11646/phytotaxa.313.1.13
837AC84FFFF81857CBC9F91FFC35FC2A.taxon	discussion	Discussion: — Most described species of Megalaria are corticolous, although some are saxicolous or bryophilous. There are two species of the genus Megalaria occurring over mosses, i. e.: Megalaria allantoidea Fryday, described from the subantarctic Îles Kerguelen, differs from M. hainanensis by its lecideine apothecia, hyaline to pale blue-green hypothecium, the allantoid and much longer ascospores [(40 –) 45 (– 50) × 7 – 8 (– 10) μm], and lack of lichen substances (Fryday 2007); Megalaria jemtlandica (Th. Fr. & Almq.) Fryday, found in the arctic regions, such as Siberia, Sweden and Alaska., differs from M. hainanensis by its hyaline hypothecium, black apothecia, and Biatora or Lecanora - type asci tips (Fryday 2004 a). Megalaria grossa sometimes occurs on rock or bryophytes and differs from M. hainanensis by its thin thallus with totally black apothecia, a bi-layered exciple consisting of an outer prosoplectenchymatic layer and an inner layer of dense textura intricata, Lecanora - type asci tips, slightly larger ascospores (20 – 30 × 10 – 15 μm), and lack of lichen substances (Sanderson 2009). The saxicolous species Megalaria beechingii Lendemer, described from eastern North America, closely resembles M. hainanensis in general appearance, but that species has granulose soredia on apical breakdown of areoles, black apothecial margin, blue-black epihymenium, and smaller ascospores [(12.7) – 13.8 – (14.8) × (4.6) – 5.1 – (5.4) μm] (Lendemer 2007). Some Megalaria species [e. g., M. albocincta (Degel.) Tønsberg, M. anaglyptica (Kremp.) Fryday & Lendemer, and M. pulverea (Borrer) Hafellner & E. Schreiner] with atranorin and zeorin usually contain additional fumarprotocetraric acid (Fryday & Lendemer 2010); however, fumarprotocetraric acid is not always present in the known species of this genus, e. g., M. intermiscens (Nyl.) Fryday & Lendemer and M. hainanensis, both of which are lacking fumarprotocetraric acid, whereas M. endochroma (Fée) Fryday & Lendemer contains additional pigments instead.	en	Su, Qing-Xia, Ren, Qiang (2017): A new species of Megalaria (Ascomycota, Ramalinaceae) and M. laureri new to mainland China. Phytotaxa 313 (1): 147-150, DOI: 10.11646/phytotaxa.313.1.13, URL: http://dx.doi.org/10.11646/phytotaxa.313.1.13
837AC84FFFFA1857CBC9FC7BFE6CFB0A.taxon	description	Specimen examined: — China, Shaanxi: Ningshan Co., Huoditang, 1500 m, on Dendrobenthamia japonica, 27 July 2005, Q. Ren 1001 (SDNU).	en	Su, Qing-Xia, Ren, Qiang (2017): A new species of Megalaria (Ascomycota, Ramalinaceae) and M. laureri new to mainland China. Phytotaxa 313 (1): 147-150, DOI: 10.11646/phytotaxa.313.1.13, URL: http://dx.doi.org/10.11646/phytotaxa.313.1.13
