ALPINE PINKS 137 



D. Knappi (Knapp's Pink). This plant is a cluster- 

 headed Pink, after the fashion of D. cruentus, but with 

 sulphur yellow flowers. Rather stiff and coarse for a 

 good rockery. It likes poor, dry sandy soil, with lime 

 added. Best increased by seeds. It sometimes dies off 

 after seeding freely. 



D. monspessulanus (Montpelier Pink). This is often 

 met with as D. alpestris, and is somewhat like D. superbus. 

 It is native of South and East Europe, and has slender 

 stems, about a foot high, with pink, fringed flowers. 

 Suitable for large rockeries or the tops of walls. Pro- 

 pagated by seeds or cuttings. 



D. petraeus. Contrary to what one would anticipate 

 from its appearance, D. petraeus is an easy Pink in the 

 rockery, moraine, or chinks of a wall. Eastern Europe is 

 its home. It is about six inches high, has small leaves, 

 and rose or rosy white solitary flowers. Increased by 

 seeds, division, or cuttings. 



D. plumarius (Garden Pink). A packet of seeds of 

 this will give many pretty varieties, ranging from white 

 to deep rose, though none is so suitable for the rockery 

 as the species or wild type itself. Its home is in Eastern 

 Europe. Increased by seeds or cuttings. 



D. suavis (Sweet Pink). This rock Pink forms a mass 

 of grass-like leaves, and produces a wealth of small white 

 flowers on stems about six inches long. A useful and 

 pretty Pink, though not a showy one. Best placed where 

 it may droop over a rock face. Increased by seeds, 

 division, or cuttings. It is a form of the Cheddar Pink. 



