Images Dated 28th May 2004

2004 European Grand Prix - Friday Practice, 2004 European Grand Prix Nurburgring

2004 European Grand Prix - Friday Practice,
2004 European Grand Prix
Nurburgring, Germany. 28th May 2004
World Copyright: Steve Etherington/LAT Photographic
ref: Digital Image Only

Sporangia and spores of the male fern

Light micrograph of the sporangia (spore sacs) and spores of the male fern", Dryopteris filix-mas. The sporangia of Dryopteris are borne on the undersides of the leaf fronds in brown kidney- shaped structures known as sori. Each sporangium is a biconvex capsule in which the mature spores lie freely. Five ruptured sporangia are seen here. The prominent yellow structure around the edge of each sporangium wall is a band of thick-walled cells called the annulus. As the mature sporangium dries, the tension in the walls of the annulus causes the sporangium to rupture, expelling the spores which are then distributed by the wind. Magnification: x100 at 35mm size."

© POWER AND SYRED/SCIENCE PHOTO LIBRARY

open-uri20120928-26917-15j6riu

2004 European Grand Prix - Friday practice,
Nurburgring, Germany.
28th May 2004.
Ralf Schumacher, BMW Williams FW26, action.
World Copyright: LAT Photographic.
ref: Digital Image Only (A high res version is available on request Eur_04_Fri_D040)