Scuppernong cultivars such as Carlos, Doreen, Magnolia and Triumph, that are distinguished by being perfect flowered (male and female flower parts together) from the Scuppernong variety with only female flower parts. Possibly the oldest cultivated grapevine in the world is the 400-year-old scuppernong "Mother Vine" growing on Roanoke Island, North Carolina. Scuppernong The scuppernong is a large variety of muscadine ("Vitis rotundifolia"), a species of grape native to the Southern United States. It is usually a greenish or bronze color and is similar in appearance and texture to a white grape, but rounder and larger and first known as the 'big
Scorza variety Scorza variety In mathematics, a "k"-Scorza variety is a smooth projective variety, of maximal dimension among those whose "k"–1 secant varieties are not the whole of projective space. Scorza varieties were introduced and classified by , who named them after Gaetano Scorza. The special case of 2-Scorza varieties are sometimes called Severi varieties, after Francesco Severi. Zak showed that "k"-Scorza varieties are the projective varieties of the rank 1 matrices of rank "k" simple Jordan algebras. The Severi varieties are the non-singular varieties of dimension "n" (even) in P that can be isomorphically projected to a hyperplane and satisfy "N"=3"n"/2+2.