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Cross-Section Through the Prickle of a Rose



It is not the epidermis alone but also the underlying bark tissue that is involved in the prickle structure. In contrast to spines, no wooden elements can be found in prickles. Therefore, too, exist no excrescences of the vascular bundle below the prickle attachment.




© Peter v. Sengbusch - b-online@botanik.uni-hamburg.de