North American Fruit Explorers mailing list at ibiblio

[John S <swim_at_svc@yahoo.com>]

Pineberries are a strawberry species hybrid of Fragaria chiloensis, a white 
fruited strawberry with red seeds.  Available fur purchase in Europe.  Plants 
are available also in the US from Burpee.

You can find photos of the fruit, as well as more information here:

http://strawberryplants.org/2010/09/pineberry-pineberries/