300 



CONVOLVULACEAE. 



3. Ipomoea cathartica 



Poir. PURPLE MORNING- 

 GLORY. (Fig. 318.) Peren- 

 nial, minutely strigillose or 

 glabrate. Stems more or 

 less twining, branching; 

 leaves broadly ovate, 2'-4' 

 long, entire or 3-lobed, acu- 

 minate, cordate ; peduncles 

 shorter than the subtending 

 petioles ; sepals glabrate, 

 linear-lanceolate or ovate- 

 lanceolate, 5 "-10" long, acu- 

 minate ; corolla pink-purple 

 or crimson, the limb 2'-3' 

 broad, undulate ; capsules 

 spheroidal, about 5" broad. 

 [Convolvulus acuminatus 

 Yahl. ; Ipomoea acuminata 

 E, & S., not R. & P. ; Phar- 

 bitis cathartica Choisy; 

 Pharbitis pur pur ea of Mills- 

 paugh.] 



Thickets, woodlands and roadsides. Native. Florida and the West Indies. 

 Flowers from spring to autumn. 



4. Ipomoea Pes-caprae (L.) 

 Roth. SEASIDE MORNING-GLORY. 

 SEASIDE CONVOLVULUS. (Fig. 

 319.) Perennial, glabrous, suc- 

 culent. Stems prostrate, creep- 

 ing, sometimes 60 long or more, 

 branching; leaf -blades suborbic- 

 ular, 2i'-4' broad, usually 

 notched at the apex, rounded or 

 cordate at the base; petioles as 

 long as the blades or shorter; 

 peduncles stout, 1-several-flow- 

 ered; pedicels more slender than 

 the peduncles; sepals glabrous, 

 oval or suborbicular, about 5" 

 long, obtuse; corolla purple, 

 about 2' long, its tube broadly 

 funnelform, its limb undulately- 

 lobed, 2'-3' broad; capsules 

 broadly ovoid or globose-ovoid, 

 7"-9" high; seeds pubescent. 



Common on sea beaches. Native. Coasts of the southeastern United States, 

 the West Indies, and tropical continental America. Flowers in summer and 

 autumn. Its seeds probably reached Bermuda by floating. This vine is one of the 

 most characteristic plants of the littoral of warm and tropical America. 



