Coccoidea
Coccoidea Henn., Bot. Jb. 28(3): 275 (1900).
Index Fungorum number: IF 1144; Facesoffungi number: FoF 07954, 2 morphological species (Species Fungorum 2022), no molecular data available.
Parasitic on living leaves of Quercus lamellosa. Sexual morph: Ascostromata large, up to 2 mm diam, single to solitary, or scattered, mostly superficial, slightly immersed in host tissue, circular to subcircular, discoid, cushion-like, semicircular in section, edge entire, slightly convex at the top, raised from the base, black, thickened at the base, soft, with numerous locules, in a layer in the upper part the ascostromata. Cells of ascostromata comprising heavily pigmented cells of textura angularis. Locules of ascomata completely immersed in ascostromata, globose to subglobose or obpyriform, with upper ostiole. Hamathecium of filiform, anastomosing, branched, septate, hyaline, relatively wide pseudoparaphyses. Asci 8-spored, bitunicate, fissitunicate, cylindrical-clavate, with short to long pedicels, apically rounded, with a wide ocular chamber. Ascospores 1–2-seriate, ellipsoidal-obovoid, slightly oval, subglobose, tapering towards narrow, nipple-like base, hyaline and 1-celled when immature, at maturity, uniseptate near the lower end, not constricted and dark brown at the septum, yellowish to light brown, smooth-walled. Asexual morph: Unknown (adapted from Hyde et al. 2013).
Type species: Coccoidea quercicola Henn. & Shirai.
Notes: Coccoidea is characterised by single to solitary, or scattered ascostromata, globose to subglobose or obpyriform locules, cylindrical-clavate asci and ellipsoidal-obovoid, slightly oval, subglobose ascospores. Müller and Arx (1962) placed Coccoidea in Venturiaceae based on morphology. Hyde et al. (2013) illustrated a specimen (BPI 643971) collected in India on living leaves of Quercus lamellosa. Coccoidea is morphologically a distinct and type genus of Coccoideaceae. The type species C. quercicola must be re-collected and sequenced to confirm the phylogenetic placement of Coccoidea.
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