EVANSIA 91 



ceed from a single ridge. The standards are spreading, 

 like the falls, and lilac in colour. The styles are lilac, 

 with deeply fringed, conspicuous appendages. A native 

 of North- Western Himalayas, at an elevation of 14,000 

 ft., whence it was introduced by the late Mr Frank 

 Miles. 



39. I. tectorum, Maxim, in Bull. Acad. Peter sb., 

 vol. vii. p. 563; Hook. fil. in Bot. Mag., t. 6ll8; /. 

 tomiolopha, Hance in Trimen Journ., 1872, p. 229. 

 This is one of the most beautiful of all Irises, and is 

 fortunately quite hardy on any sheltered border. It is 

 well illustrated in the Gardeners' Chronicle of July 6th, 

 1876, p. 37, and the flower is there shown to be nearly 

 6 in. across. The rhizome is as thick as a man's 

 thumb, creeping on the surface of the ground and not' 

 producing the stolons usual in this section. The leaves 

 are pale green, slightly glaucous, above a foot long and 

 an inch or more broad. The stem is more than a foot 

 high, with a large leaf in the middle and a single ter- 

 minal, two to three flowered spathe of three almost 

 membranous valves, 1^ to 2 in. long. The pedicels 

 are much shorter than the spathe, and the perianth-tube 

 is an inch long or more. The falls have a nearly round 

 blade, l| in. broad; they are bright lilac in colour, 

 variegated with darker lilac, and are white at the 

 throat. The crest is lilac and white, deeply laciniated. 

 The standards are spreading, like the falls, but are 

 coloured plain lilac. The plant was introduced by Mr 

 William Bull about 1874. Mr A - P eri 7> of Winchmore 

 Hill, has an exceedingly charming pure white variety. 

 It is a native of China and Japan. The Chinese grow it 

 on the roofs of their houses, hence the name tectorum 

 There is no difficulty in growing this really handsome 

 plant, but it should be kept dry in winter. 



40. I. lacustris, Nutt. Gen. Amer., i. 23. I am un- 

 able to say that this small species is worth general 



