Patellaria chromolaenae Mapook & K.D. Hyde, in Mapook et al., Fungal Diversity 101: 127 (2020).

Mycobank number: MB 557350;Index Fungorum number: IF 557350; Facesoffungi number: 07836; Fig. 64

Saprobic on dead stems. Sexual morph: Apothecia 622–693 × 108–182 µm ( x̄ = 652.2 × 150.4 µm, n = 10) arising singly or in small groups, sessile, erumpent from the substrate, black when fresh. Receptacle pulvinate, disc convex, disc and the margins are greenish black when fresh, in lacto glycerin colour change in to magenta. Excipulum 18–32 µm ( x̄ = 25.1 µm, n = 10) ectal excipulum and medullary excipulum are not clearly separable, ectal excipulum a narrow layer, 3–4 cells deep, thick, greenish black colour cells of subglobose to subangularis, medullary excipulum composed of narrow, long, thin-walled, hyaline to greenish cells of textura porrecta. Hymenium hyaline or greenish. Hamathecium comprising 1.2–1.8 µm wide ( x̄ = 1.5 µm, n = 20), numerous, obtuse, exceed asci in length, apically enlarged and pigmented, apices glued together to form pseudo epithecium, paraphyses. Asci 60–80 × 15–20 µm ( x̄ = 69.3 × 17.1 µm, n = 30) 8-spored, short pedicellate, cylindric–globose, rounded at the apex, J –at the ascus apex, croziers abscent at the base of asci. Ascospore 27–34 × 5.2–6.0 µm ( x̄ = 31.5 × 5.8 µm, n = 40), multi-seriate, hyaline to greenish, smooth-walled, amerosporae, allantoid, regularly seven septate. Asexual morph: Undetermined

Material examined: Thailand, Chiang Rai Province, Mae Fah Luang University, 21 March 2015, A. H. Ekanayaka, HD 016, (MFLU 16-0578).

GenBank number: ITS: MW136695, LSU: MW142387, SSU: MW127179

Notes: Patellaria chromolaenae is originally identified from dead stems of Chromolaenae odorata. The dead stem of the present collection was not identified. In the phylogenetic analysis (Fig. 62), our collection grouped with the holotype of Patellaria chromolaenae with strong bootstrap support. In our collection of P. chromolaenae (MFLU 16-0578), we observed slightly larger apothecia and the ascospores with 7 septa which was not observed in the holotype collection (Mapook et al. 2020).

Fig. 64 Patellaria chromolaenae (MFLU 16-0578). a Substrate. b Apothecia on wood. c Apothecium on wood, d: Cross section of an apothecium (in lacto glycerine). e Vertical section of the apothecium at margin (in lacto glycerine). f Apically enlarged paraphyses. g–j Cylindrical asci, k–n allantoid ascospores. o germinating spore. Scale bars: b = 500 µm, c = 200 µm, d = 300 µm, e = 70 µm, f = 40 µm, g–j = 20 µm, k–n = 15 µm, o = 100 µm