Images Dated 19th December 2002

Sori on a fern leaf, Polystichum

Fern sori. Coloured scanning electron micrograph (SEM) of two sectioned sori" (spore containing structures) on a leaf of the male fern Polystichum filix-mas. Sori consist of clusters of sporangia (brown, stalked). Each sporangium contains many spores (tiny spheres). When the spores are ready for release, the indusium (pale green) covering each cluster of sporangia uncurls in dry conditions. This drying also occurs in the wall of the sporangium which eventually, due to tension, splits and catapults spores away from the plant. Spores germinate on the ground to form the prothallus of a new fern plant. Magnification: x2 at 5x7cm size. Magnification: x5 at 3x7 inch print size."

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1973 Osterreichring 1000kms Osterreichring, Austria. 24th June 1973 Brian Redman

1973 Osterreichring 1000kms
Osterreichring, Austria. 24th June 1973
Brian Redman, Ferrari 312PB, 3rd position and Arturo Merzario, 6th position..
World Copyright: LAT Photographic
ref: 35mm Image