NO. 18] Convolvulus (Convolmilacece). 139 



(3) Genus BREWERIA, R. Br. 



From the name of an English botanist of the eighteenth century. 



Fig. 68. Breweria. B. Pickeringii, G. 



Flowers, white, small, bell-shape. Corolla, five-angled 

 more or less silky on the outside. Sepals, very hairy. 

 Stamens and style, exserted. Styles, two, united to- 

 above the middle. Stigmas, blunt. Flower-stems, 

 with one to three blossoms and narrow leaf-like bracts 

 which are as long as the flowers or longer. 



Leaves, simple, alternate, entire, very narrow, line-like, or 

 the lower ones widened toward the apex and tapering 

 to the base, nearly stemless. 



Found, from the dry pine-barrens of New Jersey to North 

 Carolina, and, more sparingly, westward. 



A prostrate herbaceous vine, smoothish or soft-downy. 



(4) Genus CUSCUTA, Tourn. (Dodder, Love Vine.) 



Flowers, about one twelfth to two twelfths of an inch in 

 length, whitish, in clusters. Corolla, from globular 

 to tubular, with a five-cleft or four-cleft spreading 

 border. Calyx, five-cleft or four-cleft, or of five 

 distinct sepals. Stamens, alternate with the lobes of 

 the corolla, and with scale-like, often fringed, attach- 

 ments at their base. Styles, two, distinct or united. 

 Seed-case, two-celled. Blossoming usually in the sum- 

 mer and fall. 



Leaves, lacking ; in place of them usually a few scattered, 

 minute scales. Stems, thread-like. 



Fruit, two-celled, mostly four-seeded. 



