Prillieuxina
Prillieuxina G. Arnaud, Annals d'École National d'Agric. de Montpellier, Série 2 16(1-4): 161 (1918) [1917].
≡ Leprieurina G. Arnaud, Annals d’École National d’Agric. de Montpellier, Série 2 16(1-4): 210 (1918) [1917].
Index Fungorum number: IF 4365; Facesoffungi number: FoF 06742; 62 morphological species (Species Fungorum 2022), 1 species with molecular data.
Epiphytes on surface of leaves, forming minute, scattered, blackened areas. Superficial hyphae abundant on the host surface, superficial, easily removed from the host, with or without appressoria, epidermal hypostroma. Sexual morph: Thyriothecia superficial on the host, flattened, black, with basal peridium poorly developed, opening by central, stellate fissures. Upper wall linear, with compressed hyphae arranged radially from the centre towards the margin. Hamathecium lacking pseudoparaphyses. Asci 8-spored, bitunicate, globose-subglobose, apedicellate, without an ocular chamber. Ascospores overlapping 3–5-seriate, ellipsoidal with rounded ends, uniseptate, constricted at the septum, light brown to reddish-brown. Asexual morph: “Leprieurina”, coelomyceteous. Pycnothyria same as in sexual morph. Conidia obovoid, widest near the apex and tapering towards lower end, sometimes uniseptate at lower cell, not constricted at the septum, brown to dark brown (adapted from Hongsanan et al. 2014).
Type species: Prillieuxina winteriana (Pazschke) G. Arnaud
Notes: Prillieuxina is characterised by thyriothecia that open with star-like fissures when mature, asci are globose to subglobose and ascospores areuniseptate and brown. Guatimosim et al. (2015) provided LSU sequence data for Prillieuxina baccharidincola. Prillieuxina is a distinct genus in Asterinaceae. More collections with DNA sequence data are needed to confirm the systematic position of Prillieuxina.
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