HYBRIDS AND HYBRIDISING 43 



the stem as in Oncocyclus, but two together as in Regelia. 

 They have also had the advantage of being much more 

 easily grown than the Oncocyclus Irises. 



Mr C. G. Van Tubergen has recently made similar 

 crosses, and as he has kindly sent me cut flowers, I give 

 below a few descriptions. The way these flowers were 

 sent is interesting. Unopened buds were tied with 

 raffia to prevent expansion on the journey, and a number 

 of stems with flowers could thus be packed in a com- 

 paratively small box. Immediately on being untied 

 the buds began to open, and in a marvellously short time 

 were transformed into perfect flowers. 



Korolkoivi violacea X Sunvaroivi. 



(type) X Oncocyclus. 



These are remarkably similar, considering that the male 

 parents are quite distinct. Both have blue-purple 

 standards differing slightly in shade of colour ; the falls 

 of the first are deep plum purple with veins of the same 

 colour on reddish yellow ground, and those of the latter 

 are brown with veins of the same colour on dull pale 

 yellow ground. 



Koro/kowi violacea X Oncocyclus seedling. The flower 

 of this is very fine and its twin flowers alone suggest 

 that it is not a pure Oncocyclus. Its colour effect is that 

 of rich purple, neither red nor blue predominating. The 

 falls are 2j in. by l| in., closely veined on a pale tint 

 of the same colour, the beard strong and broad, with a 

 very deep purple signal in front. The standards are 

 about 4 in. long by nearly i\ in. broad, the style arms 

 deep purple with crests veined like the falls. 



Koroffawi (type) x susiana. There is not much evidence 

 of susiana in this ; it reminds one rather of the cross with 

 iberica. The venation of both falls and standards is clear 

 and bold. In the first the veins are strong, of deep plum 

 colour on a pale yellow ground, the " signal " long and 

 of the same colour as the veins. The standards are 



