This china rose is Vincent Godsiff. A Bermuda Mystery Rose.
From Wikipedia:
Bermuda "Mystery" Roses
A group of several dozen "found" roses that have been grown in Bermuda for at least a century.
The roses have significant value and interest for those growing roses in tropical and semi-tropical regions, since they are highly resistant
to both nematode damage and the fungal diseases that plague rose culture in hot, humid areas, and capable of blooming in hot and humid weather.
Most of these roses are likely Old Garden Rose cultivars that have otherwise dropped out of cultivation, or sports thereof.
They are "mystery roses" because their "proper" historical names have been lost. Tradition dictates that they are named after
the owner of the garden where they were rediscovered.