Unknown Tree

Unknown Tree

Observation - Unknown Tree. Description: Tree/ Shrub is approx 5ft high. The leaves are thick and glossy. The fruit/ nut is very distinctive, but I cannot find anything like it in my garden books. Surrounding plants are Rhododendrons and Camellias so it is most likely a calcifuge. My colleag

Tree/ Shrub is approx 5ft high. The leaves are thick and glossy. The fruit/ nut is very distinctive, but I cannot find anything like it in my garden books. Surrounding plants are Rhododendrons and Camellias so it is most likely a calcifuge.
My colleague has just moved house and so did not see the shrub/ tree in flower.