|Mark (on left) & Fred promoting Orchid Observers|
Big Nature Day 2015, Natural History Museum
Image: L. Marsh
If you don't know about this citizen science project, aimed at finding out when orchids come into flower nowadays compared with flowering times extracted from historic herbarium sheets, then click here to find out more.
Today on Radio 4 Mark was talking about brambles, forensic botany (including how hard it is to commit murder without detection!) and "weird green stuff". It was all very entertaining but with lots of Proper Science in there too, and Mark made forensic botany sound like a very cool cutting-edge career option. Excellent work Mark!
Is Mark Spencer the Brian Cox of botany? He has the hair for it... check out this Orchid Observers video and see what you think ;-)
If you missed today's programme, you can catch it again on iPlayer here.