GARDEN FLOWERS. 19 



nia ; 1 833. ;E. pubescens (downy) ; hardy annual ; i foot ; flow- 

 ers blue, in June ; California; 1833. ^?. sguarrosa (spreading) ; 

 hardy annual ; i foot ; flowers blue, in August ; Santa Cruz ; 

 1847- 



^ESCULUS. [Sapindaceae.] The Horse-chestnut is too well 

 known to need description. All the species are hardy orna- 

 mental trees, flourishing in rich loam, of stately growth, alike 

 desirable both for foliage and flower. Propagated by seed, 

 layers, or by grafting. 



jE. glabra (smooth-leaved) ; 1 2 feet ; flowers greenish-yellow, 

 in May ; North America ; 1812. ^E. hippocastanum (common 

 Horse-chestnut) ; 40 feet ; flowers white, in May ; Asia ; 1629. 

 ^E. hippocastanum flore-pleno (double-flowered); 40 feet; flowers 

 white, in May ; gardens. ^E. hippocastanum foliis argenteis 

 (silver-leaved) ; 40 feet ; flowers white, in May ; gardens. ;E. 

 hippocastanum variegatum (commmon striped-leaved) ; 16 feet ; 

 flowers white, in May; Asia; 1629; layers. JE. Ohiotensis 

 (Ohio) ; 30 feet ; flowers white, in May ; North America. ^E. 

 pallida (pale-flowered) ; 1 2 feet ; flowers greenish-yellow, in 

 June; North America; 1812; grafts or buds. JE. rubicunda 

 (red-flowered); 12 feet; flowers red, in June; North America; 

 grafts or buds ; 1 820. 



The double-flowered variety is very desirable. 



^ETHIOISUEMA. [Cruciferas.] Annuals and perennials of 

 low growth succeeding in light soil. Propagated by summer 

 cuttings, or by seed sown in spring. 



ANNUALS. ;E. Buxbaumii (Buxbaum's) ; 6 inches ; flowers 

 pale-red, in June ; Levant ; 1 823. ^E. gracile (slender) ; 3 

 inches ; flowers pale-red, in June ; Carniola ; 1823. ^E. saxatile 

 (rock) ; 6 inches ; flowers flesh-color, in June ; south of Europe ; 



1759- 



PERENNIALS. ^E. heterocarpum (various-podded) ; 6 inches ; 

 flowers purple, in July ; Armenia ; 1837. jE. membranaceum 

 (membranous); i foot; flowers lilac, in June; Persia; 1829. 

 jE. monospermum (one-seeded) ; 6 inches ; flowers pale-purple, 



