See under MEA for measurements. At 15°C conidiation dense on the agar surface around the plug, effuse, short, spiny to broom-like, irregularly verticillium-like; phialides often parallel.
Reverse dull yellow, 4A3–5, 4B4, darkening to orange-, reddish- or dark brown, 5–6BC7–8, 7–8CD7–8, 7E7–8, with pigment diffusing across the colony. On MEA colony hyaline, dense, circular. Aerial hyphae long and thick, forming a white mat around the plug, becoming fertile. Conidiation sometimes also in small white pustules on the colony margin, sometimes also submerged in Foretinib ic50 the agar. Conidiophores to ca 1 mm long, more or less erect, usually with long sterile stretches and fan-like branching on upper levels, or branching irregular, asymmetrical, at acute angles, terminal branches 1–3 celled; basally to 6 μm wide, terminally attenuated to 2.5–3 μm. Phialides solitary or in dense complex fascicles
PF-6463922 mw of 2–10 on cells 2–4.5 μm wide, strongly inclined upwards or downwards to nearly parallel, often one phialide originating below the base of another and often lacking a basal septum. Phialides (4–)10–21(–28) × (1.8–)2.5–3.5(–5.0) μm, l/w (2.0–)3.5–6.5(–8.0), (1.5–)2.2–3.3(–4.2) μm wide at the base (n = 62), subulate and equilateral or lageniform, inequilateral, curved upwards and with slightly widened middle, sometimes short-cylindrical, divided by a septum close to the apex, sometimes sinuous; producing conidia in minute wet heads to 25 μm diam. Conidia (3.0–)4.2–8.3(–13.0) × (2.0–)2.8–4.0(–4.7) μm, l/w (1.2–)1.4–2.4(–3.9) (n = 63), hyaline, smooth, variable in shape, mostly ellipsoidal, also subglobose or oblong to suballantoid, with few minute guttules; scar often distinct, truncate. Measurements include those obtained on PDA. After 5 months small sterile, reddish brown stromata observed (C.P.K. 3138). On SNA not growing after pre-cultivation on CMD, good but limited
growth and conidiation after pre-cultivation on MEA, suggesting a requirement for growth factors. Conidiation similar to CMD, below and above the agar surface, sometimes also in white tufts or pustules to 1.5 mm diam after 2–3 weeks, with conidial heads to 70 μm. Habitat: usually in large numbers Selleck Metformin on medium- to well-rotted crumbly wood, less commonly on bark. Distribution: Europe (Austria, Denmark, Germany, Italy, UK), uncommon. Typification: no type specimen is preserved in C, but an illustration of the type. Holotype (‘CFTRinh-172 in vitro iconotype’): colour illustration of the type specimen in the unpublished manuscript Flora Hafniensis, Fungi delineati, vol. 1, p. 10, housed in the Botanical Library, Natural History Museum of Denmark, Copenhagen; also reproduced in Flora Danica Tab. 1858, Fig. 2 (cited by Fries 1849). A part of the illustration suggests a globose stroma being hollow inside, but apparently it shows an aggregate of several stromata turned up by mutual pressure forming a cavity.