Loganberry - Information from Answers.com
The loganberry (Rubus × loganobaccus) is an hexaploid hybrid produced from
pollination of a plant of the octaploid blackberry 'Aughinbaugh' (Rubus ursinus) ...
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Boysenberry - Information from Answers.com
Rubus ursinus × idaeus ... a European Raspberry (Rubus idaeus), a Common
Blackberry (Rubus fruticosus), and a Loganberry (Rubus × loganobaccus).
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Rubus - Information from Answers.com
Rubus is a large genus of flowering plants in the rose family, Rosaceae,
subfamily ... Rubus trifidus - Japanese Blackberry; Rubus ursinus – Trailing
Blackberry ... both natural and bred by man, such as the Loganberry (Rubus ×
loganobaccus).
www.answers.com/topic/rubus-1