CONVOLVULACEJE. 



569 



Pharbitis, and Quamoclit, recently separated from it, supply some of 

 our most beautiful greenhouse and hothouse climbers. 



Stem leafy. Corolla campanulate 1. Convolvulus. 



Stem thread-like, without leaves, parasitical on other 



plants. Corolla nearly globular ....... 2. Doddee. 



I. CONVOLVULUS. CONVOLVULUS. 



Twining or prostrate herbs (or in some exotic species erect), with 

 alternate leaves. Sepals 5. Corolla campanulate. Style single, w T ith 

 2 oblong or linear stigmatic lobes. Capsule with 4 seeds in 1 or 2 cells. 



A large genus, having the geographical range of the family, but 

 more especially abounding in the Mediterranean region. 



Bracts small, and placed on the peduncle at some distance from 



the flower. Stigma narrow-linear 1. Lesser C. 



Bracts large, close under -the calyx. Stigma ovate or oblong. 



Stem climbing. Leaves angular at the base 2. Larger C. 



Stem prostrate. Leaves thick, rounded 3. Sea C. 



The common blue Convolvulus-, minor of our gardens (C. tricolor of 

 botanists) is a south European species ; the so-called Convolvulus 

 major is the Lpomo2a or Pharbitis purpurea, a widely-spread species 

 over the hotter parts of the world, probably of American origin. 



1. Lesser Convolvulus. Convolvulus arvensis, Linn. 



(Kg. 679.) 



(Eng. Bot. t. 312. Bindweed.) 



Eootstock slender, creeping under- 

 ground to a great extent. Stems twin- 

 ing, but prostrate or scarcely climbing, 

 seldom attaining above 2 feet in length. 

 Leaves stalked, ovate-sagittate, 1^ inch- 

 es long ; the lobes of the base spreading 

 and pointed, or angular. Peduncles ax- 

 illary, usually 2-flowered, with 2 small 

 bracts at their fork, and a third on one 

 of the pedicels, at some distance from 

 the flower. Sepals small and broad. 

 Corolla of a delicate pink, or nearly 

 white, an inch or rather more in diame- 

 ter. Lobes of the style narrow-linear. 

 Capsule divided into 2 cells by a thin 

 partition. 



In fields and pastures, throughout 

 Europe and central and Russian Asia, Fig. 679. 



