MORNING GLORY FAMILY 109 



heart- or arrow shaped and stalked; perennial with trailing, twining or 

 jerect stems. 



1. Base of the flower enclosed in 2 sepal-like bracts 



a. Leaves smooth, the basal lobes spreading C. sepiu/u 



b. Leaves hairy, basal lobes not spreading C. repens 



2. Base of the flower without sepal-like bracts 



a. Leaves smooth, entire C. arvensis 



b. Leaves gray-hairy, more or less lobed C. incdnus 



Evolvulus Linne 1762 Evolvulus 

 (Lat. e-, not, volvulus, twining) 



Sepals 5, united, petals 5, blue, pink or white, united into a funnel- 

 form, bell-shaped or saucer-shaped corolla, stamens 5, on the corolla, 

 ovary with 2 cavities, style 2-divided to the base' or near it, each division 

 deeply 2-cleft, stigmas thread-like, capsule globose to ovoid, 2-4-valved, 

 1-4-seeded; flowers axillary, solitary or in clusters; leaves small, usually- 

 entire ; annual or perennial. 



Stems 4-12 in. high ; leaves oblong to spatulate, 5-20 

 mm. long; flowers 6-12 mm. wide E. argent eus 



Ipomoea Linne 1753 Morning Glory 

 (Gr. ips, ipos, worm, homoios, like) 

 ' PL 19, fig. 2. 



Sepals 5, united, petals 5, pink, red, blue, purple or white, united into 

 a funnel- or bell-shaped corolla with a more or less plaited tube, stamens 

 on the tube of the corolla, included, ovary with 2-4 cavities and 4-6 

 uvules, style thread-like, included, stigmas 1 or 2, globose, capsule globose 

 jor ovoid, 2-4-valved ; flowers axillary, solitary or clustered ; leaves entire, 

 jheart-shaped or lobed ; annual or perennial. 



1. Plant bushy, 2-5 ft. high; leaves linear; flowers 



pink to red /. leptophylla 



2. Plant trailing or climbing; flowers blue to purple 



or white 



a. Leaves entire, heart-shaped at base /. purpurea 



b. Leaves 3-lobed /. hederdcea 



CUSCUTACEAE DODDER FAMILY 



Sepals 5, separate or united, petals 5, united into a bell-shaped to 

 cylindric tube, the latter usually containing fringed scales alternate with 

 the lobes, stamens 5, alternate with the corolla lobes, ovary 2-celled, ovules 



