Camposporium hyalinum Abdullah
Index Fungorum number: IF 112756
Holotype: IMI 246523
Saprobic on submerged cupules of Fagus sylvatica in stagnant water. Sexual morph: Undetermined. Asexual morph: Mycelium hyaline mostly immersed or partly superficial. Conidiophores macronematous, mononematous, hyaline, unbranched, straight or irregularly bent, 10–40 × 4–6 µm. Conidiogenous cells integrated, terminal, sympodial, polyblastic, denticulate, with up to six denticles, each denticle a narrow cylindrical pedicel. Conidia solitary, acropleurogenous, holoblastic, hyaline, 2–4 (–6) septate, 20–75 µm long (including appendage) and 3–5 µm wide, cylindrical to fusiform with a long filiform appendage at the apex, 0'5–1.5 µm wide and a narrow truncate base which usually bears the remains of a denticle.
Culture characteristics: Colony growth rate on 0.1 % malt-extract agar 6 mm diam in 2 weeks at 15°C. Colonies hyaline to glistening white, becoming pale yellow with age; reverse white to pale yellow.
Freshwater distribution: UK (Abdullah 1980)
Fig 1. Camposporium hyalinum Abdullah (× 2000). a,b Detached conidia, c,d Conidiophores and
conidiogenous cells. (Abdullah 1980)
Abdullah SK (1980) Two hyphomycetes on litter in stagnant water from Britain. Trans Br Mycol Soc 75:514–517. https://doi.org/10.1016/s0007-1536(80)80140-9