campanulate, five-cleft, persistent ; the segments acute, at 
first spreading, afterwards connivent over the fruit, very 
prickly. Corolla large, handsome, purplish-blue, broadly 
campanulate, very indistinctly-lobed, lobes with an acute 
point, almost aristate. Stamens five. Filaments short. 
Anthers oblong-lanceolate, connivent, yellow. 
Fig. 1. Calyx of the Flower. 2. Calyx, enclosing the young Fruit :— 
scarcely magnified. 
