NEW AND BEAUTIFUL ROCK PLANTS 113 



calycina (syn. glaucescens) , purple, late spring; farinosa, 

 purple flowers with yellow eye in heads, the Bird's-eye 

 Primrose ; pubescens, rose, and its beautiful white 

 form, which is often grown under the name of nivalis ; 

 Scotica, purple with yellow eye ; and minima, pale rose, 

 very small all of these are met with in collections. 

 There is also the very popular Sieboldii, really a form of 

 cortusoides, but generally given specific rank owing 

 to the many improved forms of it which have been 

 raised. This is a beautiful and free-blooming plant, 

 with large, deeply-cut flowers. Among its forms may 

 be named alba grandiflora, white ; Harry Leigh, lilac 

 with white centre ; Reggiana, white or pale pink ; Jose- 

 phine, pink, shaded violet ; and Sirius, dark red. This 

 set are often grown in pots. The foregoing are the 

 best known of the older species, but the Primula-lover 

 who is bent on forming a collection of these lovely 

 plants will find that there are many scores of others. 

 We may now turn to the newer Primulas with a free 

 conscience. It is to be feared that in the stir created 

 by their introduction some of the older kinds, gems 

 though they be, have suffered a little neglect. How- 

 ever, that will right itself in time, and certainly the 

 best of the modern kinds are very beautiful and desirable 

 plants. One of the most pleasing is Bulleyana, which re- 

 sembles Japonica in habit, but is somewhat smaller and 

 has orange flowers. It is a remarkably distinct and 

 beautiful Primula, and may be the parent of some 

 interesting hybrids ; it has already been crossed with 

 Japonica, and the hybrid resulting resembles another 

 hybrid called Unique, which owes its origin to a cross 

 between the species Cockburniana and pulverulenta. 

 Bulleyana comes from China, and blooms in late spring. 

 Winteri is a fine plant from the Himalayas, where it grows 



