1^54 



A TEXTBOOK OF THEORETICAL BOTANY 



Fig. 1514. — Rubiis. Right, Howers ol R. odoratiis. Left, fruits of i?./n/?/coi/<5, the Blackberry. 



fruits are dispersed by birds and other animals, due to the 

 barbed trichomes which they possess, and possibly as a result 

 of this the tribe is very widely distributed. Alclietnilla, Poteriiim 

 (Fig. 15 15), Agrimoriia, Acaena, Brayera. 



Fig. 15 15. — Potevium poly- 

 gamiim. Inflorescence 



with male flowers at base, 

 hermaphrodite flowers in 

 middle and female flowers 

 at top. 



