Ceratosphaeria lampadophora (Berk. & Broome) Niessl
Index Fungorum number: IF250101
Sexual morph: Ascomata depressed globose, long-beaked, brown to yellow brown, beak surface smooth, at times with yellow crystals, venter ca. 1000 µm diam, neck 850–900 µm long, occurring solitary, or in small groups, immersed becoming erumpent or only beaks erumpent. Ascomal wall in longitudinal section composed of an inner layer of flattened hyaline cells, a middle layer of small, polygonal to irregular, pale brown cells, an outer layer of irregular, yellow brown, pseudo parenchymatic cells. Ascomatal apex elongate beak-like, 850–900 µm high, 225–240 µm wide. Paraphyses abundant, ca. 4.5–5.5 µm wide just above the asci, long tapering above. Asci cylindrical, 150–175 x 8–9.5 µm; with a tall, narrow, apical ring, 2–3 µm wide, 3–3.5 µm high; with 8 bi-seriate ascospores. Ascospores fusiform, hyaline, 5-7 septate, 52–72 x 3.5–4.5 µm. Asexual morph: Characteristics in culture. Colonies reaching 9–11 mm diam on PCA, yellowish, whitish in the center. Aerial mycelium scarcely developed in the center of the colony and on the inoculating block; hyphae subhyaline to hyaline 2–3 mm wide, septate, smooth. Sporulation copious, widespread throughout the colony in 1 mo. Phialides or short conidiophores arising on aerial hyphae, conidial heads slimy, inconspicuous, and transparent. Reverse dark yellow. Conidiogenous cells phialidic, terminal or intercalary, hyaline to subhyaline, cylindrical, 14–18 ´ 2–2.5 mm, tapering below the collarette to 1.5 mm. Conidia cylindrical with curvature, hyaline, narrowly rounded at both ends, 9–11(12) ´ 1–1.5 mm, aseptate, smooth.
Distribution: Australia, on submerged wood (Hyde et al.1997)
Fig 1. Ceratosphaeria lampadosphora. 33, 34, 41, 42. Ascomata on the substrate. 35, 48. Longitudinal section through ascomatal wall. 36, 49. Asci. 37, 44. Paraphyses. 38, 45. Ascus apex with ring. 39, 40, 46. Ascospores. Scale bars: 33, 34 = 500 µm, 35 = 20 µm, 36–40, = 10 µm. (photo grabbed from Huhndorf et al. 2008)
Huhndorf SM, Greif M, Mugambi GK, Miller AN. (2008) Two new genera in the Magnaporthaceae, a new addition to Ceratosphaeria and two new species of Lentomitella. Mycologia. 100, 940-955
Réblová M. (2006) Molecular systematics of Ceratostomella sensu lato and morphologically similar fungi. Mycologia. 98, 68-93