Complex sentence: Royal Botanic Garden Wakehurst Place, acc. no.1973-21047, as "U. laevis" var. "glabra" obtained from a grafted tree grown at Kew now lost; provenance notes of the latter have not survived either.
Split into simpler sentences: Royal Botanic Garden Wakehurst Place, acc. no.1973-21047, as "U. laevis" var. "glabra" obtained from a grafted tree grown at Kew now lost. Unfortunately, provenance notes of the latter have not survived either.