Parenglerula
Parenglerula Höhn., Sber. Akad. Wiss. Wien, Math. -naturw. Kl., Abt. 1 119: 465 [73 repr.] (1910).
Index Fungorum number: IF 3727; Facesoffungi number: FoF 07964, 6 morphological species (Species Fungorum 2022), no molecular data available.
Epiphytic on living leaves. Hyphae superficial, straight to curved, septate, Hyphopodia globose to subglobose, dark brown, with thick walls. Sexual morph: Ascomata superficial, clustered, gregarious, uniloculate, globose to subglobose, black. Peridium thin, composed of dark brown cells of textura angularis, brittle. Hamathecium of wide, brown to reddish brown, straight or slightly curved, some branched, septate pseudoparaphyses. Asci 8-spored, bitunicate, globose to subglobose, obovoid to subclavate, thickened at the apex, short pedicellate, some sessile, ocular chamber not well-developed. Ascospores multi-seriate, broadly ellipsoid, subobovoid, some slightly fusiform, uniseptate, with rounded ends, constricted at the septum, hyaline to yellowish, becoming brown to dark brown at maturity, smooth-walled. Asexual morph: Unknown (adapted from Dai et al. 2014).
Type species: Parenglerula macowaniana (Thüm.) Höhn.
Notes: Parenglerula is characterised by uniloculate, globose to subglobose, black ascomata, globose to subglobose, obovoid to subclavate asci and broadly ellipsoid, subobovoid, some slightly fusiform, uniseptate ascospores. Parenglerula resembles Englerula in having superficial, globose to subglobose ascomata, obovoid asci and broadly ellipsoid to subobovoid ascospores with only one septum, but differs by darker ascomata and ascospores (Höhnel 1910, Dai et al. 2014). Dai et al. (2014) re-examined the syntype of P. macowaniana (BPI 692058) and accepted Parenglerula in Englerulaceae based on the brown to black colonies with angled hyphae, globose to subglobose ascomata with thin peridium, and obovoid to globose asci. Parenglerula is a distinct genus in Englerulaceae but molecular data is lacking. Fresh collections with DNA sequence data are needed to confirm the taxonomic placement of the genus.
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