Sclerococcum glaucomarioides (Willey ex Tuck.) Ertz & Diederich

Meng, Qing-Feng, Thiyagaraja, Vinodhini, Ertz, Damien, Worthy, Fiona Ruth, Saichana, Natsaran & Fu, Shao-Bin, 2024, Sclerococcum glaucomarioides: a new geographical record from China, Phytotaxa 642 (1), pp. 95-103 : 100-101

Sclerococcum glaucomarioides (Willey ex Tuck.) Ertz & Diederich , The Bryologist 121 (3): 398 (2018) [MB#827718]. Figure 2

Family: Sclerococcaceae Réblová, Unter. & W. Gams, Mycol. Progr. 16(1): 35 (2016).

= Dactylospora glaucomarioides (Tuck.) Hafellner.

= Buellia glaucomarioides Tuck.

Lichenicolous, grows on the thallus of crustose lichen Ochrolechia akagiensis

Description: Sexual morph: Apothecia superficial, growing dispersed on the lichen tuberculates or in the gap between the tuberculates, adpressed to sessile, disc black, 0.4–0.6 (0.8) mm diam., round to irregularly round, flat or not. Epihymenium blackish, paraphysis tips bond in cluster with brown-blackish granular structure, excipulum thin 2 – 4 μm thick. Hymenium with brownish color, 25–40 μm high. Hypothecium brownish-black, hymenium transparent with somewhat brownish hyphae tissue. Paraphyses thin, 1.5–2 μm wide, with apices expanded, mostly 2–3 μm wide. Exciple dark brownish to blackish, pseudoparenchymatous, 8–15μm thick. Asci broadly cylindrical to crassly clavate, 20–30 × 10–15 μm, 8-spored. Ascospores ellipsoid or oblong, brownish, 3–4-locules with 2–3 lenticular or linear transverse septate, occasional with one longitudinal septate, (6) 8 – 12 × 5–7 μm, overlapping, multiseriate in asci.

Asexual morph: Not observed.

Specimens examined: Yuexi country, Anqing city, Anhui Province: Yangtianwo, Yaoluoping National Nature Reserve, elev. 1160m, E116°4’10”, N30°58’11”, 15 th October 2020, collected by Qiang Ren, Collection No. 8260 (KUN-L 88756). The host lichen grows with moss on siliceous rock.

Figures

FIGURE 2. Sclerococcum glaucomarioides (KUN-L 88756) on the lichen thallus of Ochrolechia akagiensis. a–d Host substrate. e–g Vertical section of apothecia in water. h Asci and ascospores in water. i–k Ascospores in water. Scale bar: b = 5 mm, c–d = 2.5 mm, e–g =20 μm, h = 10 μm, i–k = 5 μm.