Trichomerium coffeicola (Puttemans) Speg., Physis, Rev. Soc. Arg. Cienc. Nat. 4(no. 17): 284 (1918), Figure 42

≡ Limacinia coffeicola Puttemans, Bull. Soc. mycol. Fr. 20: 153 (1904)

= Trichomerium coffeicola var. macrosporum Cif. & Bat., in Batista & Ciferri, Saccardoa 2: 202 (1963)

MycoBank number: MB 340357; Index Fungorum number: IF 340357; Facesoffungi number: FoF 10396;

Epiphytic on the upper surface of leaves. Hyphae, branched, septate, slightly constricted at the septa, pale brown to dark brown, hyphal networks cover the surface of hosts. Sexual morph: Ascomata 70−95 high diam. (x̄ = 83 μm, n = 5), superficial, solitary to aggregated, subglobose to globose, brown to dark brown. Peridium 12−18 μm wide (x̄ = 12 μm, n = 10), two layers, the outer layer of brown to dark brown cells of textura prismatica, the inner layer composed of pale brown to hyaline of flattened cells. Hamathecium lacking. Asci 35−45 × 10−12 μm (x̄ = 40 × 11 μm, n = 10), 8-spored, bitunicate, ellipsoidal to cylindrical, clavate, with a short pedicel, with an apical ring. Ascospores 8−12 × 2.5−3.5 μm (x̄ = 10 × 3 μm, n = 10), 2-seriate, hyaline, fusoid, rounded at the ends, 2−3-septate, guttulate, with a mucilaginous sheath. Asexual morph: Undetermined.

Material examined: Cuba, Habana, on leaves of Eugenia axillaris (Sw.) Willd. (Myrtaceae), 1 February 1922, Reginald Hart. & Charles H. Ballou (BPI 699599A-C).

Figure 42        Trichomerium coffeicola (BPI 699599A-C). a–c Herbarium material. d Appearance of ascomata on the superficial of host. e, f V Squash mount of ascoma. g Vertical section through peridium. h Vertical section of ascomata. j–k Asci with ascospores. l Vertical section through ostiole. m Ascospores. Scale bars: e–g, l = 20 µm, h = 50 µm, i–k =10 µm, m = 5 µm.