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"Some Naming Problems in Rosa"
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Article (magazine) published Sep 1959 by Bulletin du Jardin botanique de l'√Čtat a Bruxelles.

Authored by Gordon D. Rowley
7 favorite votes.  
Vol. 29, Fasc. 3, pp. 205-211
On p. 208, refers to 'Agnes' as a "triploid hybrid."
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