Synonym (also Schuylkill, Schuylkill Muscadel) for the grape variety Alexander; see there.
The red grape variety originates from the USA. Synonyms are Alexander's, Alexandria, Alexander Grape, Black Cape, Black Grape, Buck Grape, Cape Grape, Clifton's Constantia, Clifton's Lombardia, Columbian, Constantia, Farker's Grape, Madeira of York, Rothrock, Rothrock of Prince, Schuylkill, Schuylkill Madeira, Schuylkill Muscadel, Schuylkill Muscadine, Springmill Constantia, Tasker's Grape, Vevay, Vevay Winne, Winne, Winne Grape, Wiune and York Lisbon. It should not be confused with the new variety Alexander Winter, which has a similar name. The picture was taken by the botanist Johann S. Kerner (1755-1830) from his catalogue of grape varieties used in Germany at the time.
The hybrid is probably a natural cross between species of a wild Vitis labrusca x an unknown Vitis vinifera. The vine was discovered around 1740 on the banks of the Schuylkill...
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Dr. Christa Hanten
Fachjournalistin, Lektorin und Verkosterin, Wien