3 1 8 ConvolvulacecE Pharbitis. 



by the capsule being 3-celled. The derivation of the generic 

 name is obscure, but it is said to come from <j)dp/3ii, colour, 

 in allusion to the variety and brilliancy of the colours of the 

 flowers. 



1. Ph. hispida, syn. Ipomcea purpurea, Convolvulus mifr- 

 tabilis and G. major (fig. 178). Morning Glory. The colour 

 of the flowers in the typical variety is a deep violet, but like 

 its dwarf representative it has given birth to many handsome 

 varieties, such as white, rose, carmine, or blue, or a combination 

 of two or more of these colours. It is an annual of South 

 American origin. 



2. Ph. hederacea, syn. P. Nil var. limbata and Ipomcea hede- 

 racea. This is a pretty dwarf annual from North America, of 

 which there are several handsome varieties in cultivation, varying 

 from azure-blue, blue, or violet and white to carmine and white. 

 Leaves distant, petiolate, trilobate, acute, cordate at the base, 

 and clothed with silky hairs on both sides. 



ORDER LXXV. -NOLAN ACE M. 



This is a small order intermediate in characters between the 

 last and the next following. The species are herbaceous or 

 woody erect or prostrate plants with alternate simple ex- 

 stipulate leaves and showy flowers. Calyx deeply 5-lobed, 

 valvate in aestivation. Corolla funnel-shaped or salver-shaped, 

 with a plaited aestivation. Stamens 5, equal, alternating with 

 the lobes of the corolla. Fruit of 5 or more distinct or partially 

 confluent nuts enclosed in the persistent calyx ; nuts by abortion 

 usually only one-seeded. Seeds albuminous. There are six 

 genera and about thirty- five species belonging to this order. 

 All natives of South America. 



1. NOLAtfA. 



Trailing annuals with showy flowers resembling those of Con- 

 volvulus. Corolla campanulate. Fruit 4-celled, 4-seeded. The 

 species are all South American. Generic name from nola, a 

 little bell, the form of the flowers. 



1 . N". prostrata. A prostrate annual with somewhat fleshy 

 oval petiolate leaves and solitary axillary flowers about an 

 .inch in diameter. Corolla violet-blue, with a yellow tube. 



