278 ROCK GARDENS 



Erodium (Geraniaceae), Heron's Bill 



Dwarf- growing plants of the Geranium order, requiring warm, 

 dry, sunny spots. All very lovely, and worth growing in the 

 choicer parts of the garden. 



E. guttatum. — Pretty silvery, fern-like foliage, forming a neat 

 tuft, with pure white flowers veined with purple, borne on slender, 

 branching stems. A dainty and attractive plant, but not very 

 robust. 



E. macradenu7n. — Dwarf-growing. Violet-pink flowers with 

 deep purple markings, borne on stems about 4 inches high, in June 

 and July. 



E. cheilanthtfolium.— Y ern-\\k& leaves, with dark veining on its 

 white petals. 



E. chrysanthum. — Has sulphur-coloured flowers. 



E. petraeum. — Warm and dry chinks. Grows about 5 inches 

 high, with smoothish, pinnate leaves, and purple flowers in 

 June. 



E. Reichardi (syn. E. c hamae dry o ides). — Very dwarf-growing, 

 making flat tufts of little heart-shaped leaves, and solitary white 

 flowers, very faintly veined with pink. Likes moist, sandy soil. A 

 wee, dainty plant. 



E. supracanum. — This plant has hoary leaves and bright pink 

 flowers. Very lovely. 



Erpetion reniforme (syn. Viola hederacea) 



A small and delicate little plant, only half hardy, covering the 

 ground with a mass of small leaves, and has slender, creeping 

 stems. Blue and white flowers, very pretty, and only about 2 inches 

 high. It likes a shady position in good sandy loam. Except in a 

 warm climate, it will require to be lifted in the autumn and taken 

 into a cold house. 



Erysimum- (Cruciferae), Hedge Mustard 



Very similar, but not so good as Wallflowers. The best of the 

 genus are — 



E. comatum. — Narrow, silvery foliage and yellow flowers. 



E . pulchellum (syn. E. rupestre). — Blooms profusely in spring and 

 autumn, and has bright golden-yellow flowers. 



E. rhaeticum. — Densely tufted, covered with clear yellow flowers 

 in early summer. They all like dry and sunny positions in well- 

 drained, gritty soil. Increased by seed. 



