THE MORNING-GLORY FAMILY 



381 



Fig. 299, II. — Creeping Bellflower (Campanula rapunculoidcs , Bellflower 

 Family, CampanulacecE) . A, flowering branch. B, flower, cut verti- 

 cally, enlarged. C, floral diagram. D, fruit opening by little doors at 

 base, enlarged. E, seed, entire, and cut vertically, enlarged. (Le- 

 Maout and Decaisne.) — -A perennial herb 30-90 cm. tall; flowers 

 blue; fruit dry. Native home, Eurasia; run wild from gardens. 



the corolla and the dehiscence of the capsule. So complete 

 is the coalescence of the petals in most members of the family 

 and so flaring the corolla, that as it forms in the bud it be- 

 comes folded or plicate,^ and the folds overlap in a convolute 

 manner. Such iestivation may be described as 'plicate- 

 convolute. The capsule of the morning-glory (of which the 

 sweet potato is one species) differs from the other capsules we 

 have studied in having the valves separate not only from one 



Pli'cate < L. plicatus, folded into plaits. P"'. 



left) with one of the other two which together with the middle one are 

 to form the strap-shaped corolla. S, somewhat later stage showing 

 the three lobes of the strap-shaped corolla (c) and the inferior ovary (g). 

 (Payer.) — A perennial herb about 1 m. or more tall; resembling a sun- 

 flower. Native home. Eastern United States; familiar in gardens. 



