Check out Macuto Murayama's flower illustrations. Apparently he spends months on each one by dissecting out all the floral parts, sketching and photographing them, then renders them in 3-D software before recompositing the image in photoshop. The resultant image have a ghostly x-ray quality to them combined with the precision of a scientific illustration and yet have a great artistic beauty. Lots more examples at the link and there are more details on the artist and his technique here.
It is not only an image of a plant, but representation of the intellect’s power and its elaborate tools for scrutinizing nature. The transparency of this work refers not only to the lucid petals of a flower, but to the ambitious, romantic and utopian struggle of science to see and present the world as transparent (completely seen, entirely grasped) object.