LIST OF FLOWERS 



INDIAN HEMP. See Cannabis. 



INDIAN MALLOW. SeeABUTiLON. 



INDIAN POPPY. See Meconopsis. 



INDIAN SHOT. See Canna. 



INULA. A hardy perennial easily raised from seed but not of 

 much value as a border plant, though well suited for covering rough 

 banks and for patches in the Wild Garden. /. glandulosa, bearing 

 fine yeUow flowers 4 to 5 inches in diameter, is the usual variety, 

 but there are other kinds, such as royleana and grandiflora, which 

 are as good or better. 



lONOPSIDIUM {Violet Cress). For the Rock Garden /. acaule 

 is a charming little plant. It is quite hardy, dwarf in its growth 

 (about 2 inches high), and although classed as an annual its pretty 

 tufts of lUac-coloured flowers spring up year by year from self-sown 

 seed. It seems as if it would grow anywhere, and yet is always 

 careful not to intrude upon its neighbours. 



IPOM^A. See Convolvulus. 



IRIS. This plant may be divided into two groups, the bulbous 

 and the non-bulbous [rhizomatous). Among the latter is I. Germanica, 

 the Flag or German Iris, which in its many varieties will flourish in 

 almost any soil, and of which the following are good examples: 

 Black Prince, with large, fragrant flowers of light and dark purple 

 and yellow markings; Mme. Chereau, having white flowers tinged 

 with soft blue; and Pallida dalmatica, a fine variety, with taU stems 

 of delicate blue flowers and splendid foliage. The bulbous kind are 

 well represented by I. xiphioides, the English Flag, and by /. xiphium, 

 the Spanish Iris. Both of these are handsome plants, the English 

 Iris having many varieties of colour — ^white, lavender, blue, purple 

 and striped; while the Spanish Iris includes white, blue, yellow and 

 striped. They like a light, well-drained soil and a warm, sheltered 

 situation, but plenty of sunlight is their chief desideratum, while 

 their next is that they shall not be disturbed. These are also re- 

 quisites for the choicer sorts of bulbs, such as /. reticulata, I. alata, 

 and /. persica, all of which are valuable examples, especially /. 

 reticulata, which produces a wealth of fragrant flowers most useful 

 for cutting. 



ISOPYRUM. The variety called thalictroides is a pretty little 

 white-flowered plant with beautiful fern-like foliage, valuable for 



217 



