Grafting growth in the vascular cambium. Occasionally, a so-called "graft hybrid" or more accurately graft chimera can occur where the tissues of the stock continue to grow within the scion. Such a plant can produce flowers and foliage typical of both plants as well as shoots intermediate between the two. The best-known example this is probably +"Laburnocytisus" 'Adamii', a graft hybrid between "Laburnum" and "Cytisus", which originated in a nursery near Paris, France in 1825. This small tree bears yellow flowers typical of "Laburnum anagyroides", purple flowers typical of "Cytisus purpureus" and curious coppery-pink flowers that show characteristics of both "parents".
HMS Laburnum (1915) Settlement Naval Volunteer Reserve. As drill ship, "Laburnum" was equipped with independent wireless equipment, and housed a number of naval offices including Captain, Auxiliary Vessels and Captain, Extended Defences Office. "Laburnum" had her engines removed shortly after her arrival in Singapore in order to augment her accommodation. Hence she could not be fully utilised when war broke out in the Far East. With the evacuation of Penang, "Laburnum" also played host to the RNVR Penang Division, headed by Commander C C Alexander. "Labernum" was scuttled on 15 February 1942 when Singapore fell to Japanese forces. Her wreck was raised about