HAWTHORN 



321 



Ovary syncarpous, the cavpels entirely sub- 

 in erged. Styles freely projecting. ' ' Fruit " 

 a false berry, the fleshy part entirely due 

 to the calyx-tube. 



r~l Carpellary walls bony; "fruit" a false 

 ry, the "haw." 



Cratcegus Oxycantha, L. Hawthorn, Whitethorn (Fig. 

 130). Thorny shrub or small tree, with lobed leaves, and 



Fig. 130. Hawthorn, Cratcegus Oxycantha. 1, flowering shoot; 

 2, fruit ; 3, section across latter, p. 321 (Wo). 



a peculiar odour in the flowers, due to trimethylamine, 

 which attracts flies ; proterogynous, and with half-exposed 

 honey. 



w. in. 21 



