I 4 2 



FLOWERS OF ROCKS, WALLS, ETC. 



the anthers open when the flower opens, and ripen, and after the pollen 

 is shed the other five do so. After they have all opened, the pistil, 

 previously concealed, emerges, and the 2 long stigmas elongate. In 

 this way it is necessary for Lepidoptera to convey pollen from anthers 

 of young to the stigmas of old flowers. The plant is not self-pollinated. 

 It is sweet-scented. Some plants produce only female flowers. 



The seeds of the Cheddar Pink are dispersed by the wind. The 

 capsule opens to form a series of apical teeth and allows the seeds 



to be dispersed by the wind, 

 the stem swaying backwards and 

 forwards. 



A fungus, Ascochyta dianthi, 



-.^ infests several members of the 



Clove and Pink tribe. The 

 beetle Phytonomus polygoni feeds 

 on it. 



This is a lime-loving plant, 

 and saxicolous, requiring a lime 

 soil and growing on rocks. 



Dianthus is the name given 

 by Linnaeus, Greek Dios anthos, 

 Flower of Jove, and glaucus 

 means bluish -grey or glaucous, 

 in allusion to its colour. 



Cheddar Pink is called Cleve- 

 pink, Cliff-pink. Cleve-pink is 

 given in the same sense as 

 Cliff- pink, both indicating its 

 habitat, and the first its only 

 locality. 



It has been cultivated as a flower in the garden for the rock-border. 

 ESSENTIAL SPECIFIC CHARACTERS: 



46. Dianthus glaucus^ Huds. Leaves linear, with rough margins, 

 flowers solitary, rose-pink, petals bearded, jagged, bracts shorter than the 

 calyx. 



Field Mouse-ear (Cerastium arvense, L.) 



This plant has not been discovered in any early deposits containing 

 seeds. It is distributed at the present time throughout Arctic Europe, 

 North Africa, Siberia, West Asia to the Himalayas, North America, 

 Fuegia, Chili. In Great Britain it is absent from Cornwall. North 



CHEDDAR PINK (Dianthus glaucus, Huds.) 



