ALPHABETICAL LIST OF PLANTS 367 



heads. The effect of the red unopened buds and white flowers is 

 most beautiful. This species is rare, and one of the most beautiful 

 of the Veronicas. It is unfortunately supposed not to be hardy, 

 but with me it has stood i8 degrees of frost without the least pro- 

 tection. The flowers appear in May in the utmost profusion. It 

 layers itself freely if a stone is placed on the decumbent stems. It 

 can also be propagated from cuttings. 



V. Teucriurn prostrata. — A trailing species, with bright blue 

 flowers in racemes, in the utmost profusion. A variable species. 



Other good varieties of the dwarf and trailing type are V. incana^ 

 V. saxatilis and its varieties, V. Teuci mm and its varieties, " Royal 

 Blue;'' " Trehane:' 



Of the shrubby species V. Lzlacina, V. loganoides^ V. Lyallii, V. 

 Balfouriana^ V. Gauntletti, V. La Sediusante^ V. Redntth, and 

 V. salicifolia are among the best of the newer kinds. 



Vesicaria (Cruciferae) 



A genus of bushy plants of the easiest culture in any light loam. 

 They are not of much value for the rock garden. 



V. graeca. — Grows 9 to 18 inches high. Flowers yellow, and 

 produced in the utmost profusion during the summer. Easily 

 propagated by seed. 



V. utriculata. — Grows about 12 inches high. A vigorous plant, 

 with yellow flowers, very like a Wallflower. Leaves long and 

 narrow. Seed. 



ViciA (Leguminosae) 



Pretty perennial species of the Vetch tribe. They are all of the 

 easiest culture in any soil, and can be propagated by seed. 



V. argenlea.—'ProstTQ.te habit. Silvery-coloured leaves. Large 

 whitish flowers veined and spotted purple. Useful trailer on 

 account of its foliage. 



V. Cracca. — Trailing habit and purple flowers. A pretty plant 

 for a wild corner. 



V. sylvatica. — Beautiful white and blue flowers in June and July. 

 Of trailing habit, and useful for growing over some rock. 



ViNCA (Apocynaceae), Periwinkle 



These well-known trailing plants may be useful for clothing some 

 bare bank under trees, where little else would grow. 



V. herbacea.—ls a deciduous species, with deep blue flowers, and 

 not nearly as rampant in habit as the type, and may be used for 

 covering some rocks in the choicer parts. 



