Was It A Rare Or Venomous Kind Of Spider?

No … that wasn’t what it looked like. It’s whole body was bright green (like iceberg lettuce) but it had a sort of white zig-zag shape on it’s back.

could have been a crab spider they have a range of colours from brightwhite to luminous green they are not really poisonous though

I couldn’t copy the photo, but the link to the piece and a photo is below. Is this what you saw? It is a garden spider in the UK, a carnivore, but harmless to humans according to the article.

Cucumber green spider - Araniella cucurbitina - Family: Araneidae

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Cucumber green spider - Araniella cucurbitinaCucumber green spider - Araniella cucurbitina © Roger Key/English Nature UK distribution - East Anglia, Midlands, North, South East, South West

A very conspicuous spider with a dark thorax and almost luminous, yellow-green abdomen, this species spins an orb web in tall vegetation, trees and bushes.

It is very common in gardens but sometimes overlooked as its striking colours are good camouflage amongst green leaves. Like all the other British spiders, this is exclusively a carnivore. It is harmless to humans. Food

Predatory mainly on flying insects caught in its web. Prey

Aphids, Flies, Mosquitoes and midges, Moths

http://www.plantpress.com/wildlife/search.php?name=(search%20text)&pl=5&adv=1&ot=&r=0&g=0&p=1&o=449