c. tuberculata
A Camellia species (C. tuberculata) rather than a cultivar — a rare Chinese species with distinctive tuberculate fruit surfaces.
Listed in the collection as 'c. tuberculata,' this is a Camellia species rather than a cultivar. C. tuberculata is a rare species native to China, named for the distinctive tuberculate (warty) surfaces of its fruit capsules. It is of botanical and taxonomic interest but rarely cultivated ornamentally. No cultivar record exists in the International Camellia Register because this is a species entry. Source: Limited information available.