THE BULBOUS IRIS 



flowering later than the Spanish iris. 

 Mt. Blanc, and Perle des Jardins. 



Here belong Royal Blue, Prince of Wales, 



Bulb of Dutch Iris. 



Dutch Iris. In most of the catalogs will be found a list of varieties under 

 the head of Dutch Iris. These seem to be hybrids originating in Holland, 

 produced by crossing I. tingitana, Bois., with /. xiphium, I. boissieri, Henriq, 

 and possibly with other species. The effects of these hybridizations, however, 

 have not been very marked, and the Dutch irises resemble the Spanish varieties 

 rather closely. The foliage seems to be broader and more abundant and the 

 plants generally more vigorous. The flowers appear early, usually a few days 

 before the Spanish iris. Some of the best forcing and garden varieties are found 

 in this doubtful group, e.g., Hart Nibbrig, Imperator, Golden Bronze, and 

 Poggenbeek. Dykes (op. cit. p. 214) shows a plate of Iris xiphium var. 

 praecox and suggests (p. 215) that this name might be appropriately applied to 

 the Dutch iris. 



