i 88 Encyclopaedia of Gardening 



year. The following are beautiful Flag Irises, which may be bought 

 and planted in ordinary soil in autumn : 



Bridesmaid 

 Pallida Dalmatica 

 Gracchus 



Hannibal 

 Madame Chereau 

 Sibirica 



Any one who is fond of Spanish Irises, and likes to form a little 

 collection of named sorts, may plant the bulbs among his Roses. 

 The two plants do not interfere with each other to any injurious 

 extent, and they look well in association. The Irises may be planted 

 in October or November, about 2 ins. deep. The following are 

 pretty varieties: 



Blanche Superbe Leander 



Chrysolora Louise 



King of the Blues Snowball 



La Tendresse j Thunderbolt 



The real Iris lover is not likely to stop short with the Flags, 

 English, and Spanish. He or she will want to have a number of 

 beautiful species, and the following are all lovely: 



alata 



Bakeriana 



biflora 



cristata 



florentina 



Gatesii 



histrio 



iberica 



laevigata 



Lortetti 



Pavonia (not hardy) 



Persica 



pumila 



reticulata 



Sindjarensis 



Sisyrinchium 



stylosa 



Susiana 



Tubergeniana 



These, with the hybrids now sold by hardy plant specialists, make 

 an interesting selection. The varieties of laevigata (Kaempferi) are 

 splendid waterside plants. Most of the small bulbous varieties, on 

 the other hand, do best in warm, dry, sunny spots on the rockery. 



Irish Heath. See Daboecia. 

 Irish Ivy. See Ivy. 



Isatis, Dyer's Woad (isa-tis, from isazo, to equal, alluding to its 

 smoothing power. Ord. Cruciferae). A small genus, only one 

 species of which, glauca, a yellow hardy biennial, blooming in 

 summer, is grown to any extent. Propagation is by seed, and 

 ordinary soil suits. Woad is obtained from I. tinctoria. The 

 industry is now of small proportions. 



Isolepis (i-so-le-pis, from isos, equal, and lepis, a scale. Ord. 

 Cyperaceae). I. gracilis is a pretty grassy plant, well adapted for 

 growing in small pots to stand at the edge of greenhouse stages, 

 where, drooping over and making a foreground to flowering plants, 

 it serves a useful purpose. It may be raised from seed in a frame 

 or greenhouse, and when established may be increased by division 

 in heat in spring. Loam, with a third of leaf mould and some sand, 

 suits it. 



