asiminae, but has shorter conidia, does not form sclerotia on SNA (but these form sparsely on MEA and PDA), and anastomoses between conidial ends were not observed. Phylogenetically, these two species are also distinct, with 97% (577/595 selleck chemicals llc bases) and
87% (363/418 bases) identity for ITS and TEF, respectively. However, it is possible that the strains shown in Fig. 3 for this species represent a species complex, and that the two strains obtained in the U.S.A. (CPC 16104, 16106) represent yet another taxon. The intra-specific identity for the species is 99% on ITS (590/593 bases and 978/985 bases when compared to CPC 16104 and 16106, respectively) and 96% or 95% on TEF (449/472 bases and 448/472 bases when compared to CPC 16104 and 16106, respectively). In spite of this variation, we prefer to treat these three isolates as representative of a single taxon, S. henaniensis, pending the collection of additional isolates. Scleroramularia pomigena Batzer & Crous, sp. nov. Fig. 8 Fig. 8 Scleroramularia pomigena (CPC 16105). A. Colony on malt extract agar. B. Conidiogenous cell giving rise to conidia. C–G. Disarticulating chains of conidia. Scale bars = 10 μm MycoBank MB517455. Etymology: Named after its occurrence on apple fruit. Scleroramulariae asiminae morphologice
valde similis, sed conidiis brevioribus, conidiis basalibus anguste cylindraceis, 0–3-septatis, 35–70 × 1.5–2 μm; conidiis SB273005 nmr intercalaribus et terminalibus anguste ellipsoideis vel fusoidibus-ellipsoideis, 0–3-septatis, (10–)12–25(–30) × Urease (1.5–)2.5(–3) μm. selleck On SNA. Mycelium creeping, superficial and submerged, consisting of hyaline, smooth, branched, septate, 1–2 μm diam hyphae. Conidiophores mostly reduced to conidiogenous cells, or with one supporting cell. Conidiogenous cells solitary, erect, intercalary on hyphae, subcylindrical, straight, with 1–2 terminal loci, rarely with a lateral locus, 8–17 × 2–3 μm; scars thickened, darkened and somewhat refractive, 1–1.5 μm wide. Conidia in branched chains, hyaline, smooth, finely guttulate, straight or gently curved if long and thin; basal conidia mostly narrowly cylindrical,
0–3-septate, 35–70 × 1.5–2 μm; intercalary and terminal conidia becoming more narrowly ellipsoid to fusoid-ellipsoid, 0–3-septate, (10–)12–25(–30) × (1.5–)2.5(–3) μm; hila thickened, darkened and somewhat refractive, 1–1.5 μm wide. Culture characteristics: After 2 weeks at 25°C sporulating profusely on SNA, white with abundant aerial mycelium. On OA flattened, spreading, with sparse aerial mycelium, and even, raised margins, white, reaching 20 mm diam. On MEA spreading, flattened, surface folded with sparse aerial mycelium, margin somewhat crenate, reaching 20 mm diam; surface white, reverse umber in centre and outer region. On PDA flattened, spreading, with moderate, dense aerial mycelium, and even margin; surface white, reverse orange to umber, reaching 20 mm diam after 2 weeks. Black, globose bodies (sclerotia) up to 100 μm diam are formed on MEA and PDA.