North American Fruit Explorers mailing list at ibiblio

["Ginda Fisher" <list@ginda.us>]

On Mar 31, 2011 8:40 PM, alden@waldenwinds.com <alden@waldenwinds.com> 
wrote: 

http://capitalhort.cas.psu.edu/ResearchThings/BlackberryTalk.pdf


Thornless: . Apache

. Cacanska .    Doyle's Thornless . Navaho . Ouachita(2) . TripleCrown

Primocane Bearing: . PrimeJan(2) . PrimeJim(2)

(both are thorny)



I only count 8 varieties....I guess they counted some varieties twice to get 
thirteen.

Charlie Paradise, Massachusetts

__________________

On the next page they list 5 more thorny blackberries:
Chickasaw, fort kent king, illini hardy, kiowa, and shawnee.