These are primarily concerned 



with te 



sts of mineral 



! fertilizers: 



Nitrate of soda, bone meal, a< 



:id phos 



phate. alnmim 



.im sulphate 



and lime. Ten different plots 



were laf 



d out in whicl 



i five plants 



of each of rive named varielie 



s were 



placed. No v 



■cry obvious 



differences were observed durin: 





irse of the pas 



t season. 



J here are, however, a number of serious difficulties in sue i ex 

 pcrimental beds. The divided plants grow very une({ually, and 

 thus the size and vigor of the plant may not be in direct response 

 to the fertilizer at all. Seedlings would probably serve as better 

 material. Here again, however, there is a very great difference 

 in the vigor of the seedlings from the same planting. Probably 

 the most that we can hope for is a very general indication as to 

 the response of the plants to the different fertilizers. 



A large number of Japanese Jris seedlings are now growing. 

 The seed of many of these have been collected from named va- 

 rieties, while others have come from crosses between two known 

 varieties. A few bloomed this year, and next year we should have 

 an abundance of flowers on most of these plants. Additional 

 crosses have also been made between certain varieties. 



Siberian Group 

 Due to the fact that the varieties of Siberian Irises were trans- 

 planted in the fall of i <;_>(), the plants showed a lack of their usual 

 vieor in height and .size of bloom. The material accordingly was 

 not very suitable for detailed stud) and illustration, j'.v another 

 year, however, these plants should be well established and afford 

 excellent flowers. A few additions to the collection of varieties 

 were made, Airs. Frances E. Cleveland sending us some of her' 

 new named seedlings. A large number of seedlings, grown from 

 the seed of named varieties as well as seed obtained from crosses, 

 are being grown. .Many of these should bloom (luring the coming 



Miscellaneous Beardless Iris 

 Several species and varieties of the Spurian Group gave : 

 factory bloom during the past year. A number of species, 

 ■jurca, ochroleuca, spuria, eusata, Suifen, 

 rcstii, chrysographes, Wilsoni and versico 



