THE NURSERY-LIST 319 



Gillenia. Rosacece. 



Propagated readily by dividing the roots ; also by seeds. 



Ginkgo, Salisburia (Maidenhair Tree). Ginkgoacece. 



Propagated by seeds, which are mostly imported, and which 

 should be stratified. Seeds are now produced in some quantity in 

 this country. Also increased by layers, and by cuttings of either 

 green or ripe wood. The cuttings are handled under glass. Named 

 varieties are grafted on common stocks. 



Ginseng (Panax or Aralia quinquefoliuwi) . Araliaceoe. 



Propagated by seeds, which germinate the second spring. As 

 soon as ripe, in autumn, the seed should be gathered and kept 

 moist for twelve months, being planted regularly in beds a year 

 from the time of gathering. The seed may be kept moist and fit 

 by planting it as soon as ripe, but this exposes it to mice and other 

 risks ; a safer way is to mix the seeds in several times their bulk of 

 sand (stratify) and keep them in a box, covered with wire netting, 

 until planted. The seed may be sifted from the sand. The seed 

 is sown either in drills or broadcast in well-prepared narrow beds 

 (to admit of cultivation from either side), the seeds being an inch 

 or two apart. Seedlings should be transplanted the first or second 

 season. Commercial mature roots may be expected in five years. 



Gladiolus. Iridaeece. 



Propagated by seeds, which are commonly sown in pans in spring, 

 in the house ; or they niay be sown in the border. Seedlings flower 

 in two or three years, but four years is often required to produce 

 good merchantable bottoms. They give new varieties. The 

 common method of propagation is by means of cormels or offsets. 

 These are removed from the parent corm and planted in the open, 

 where some of them will flower the same season, although most of 

 them will require a season's independent growth before they bloom. 

 If cormels are desired in abundance, the large corms should not 

 be allowed to flower. Some varieties do not produce cormels 

 readily, and these may be made to bear them by cutting or ringing. 



Aside from cormels, one or two new corms are formed above the 

 old one each year. Fig. 49. 



Glaucium (Horned Poppy). Papaveracece. 



The annual and biennial kinds are grown from seeds sown 

 where the plants are to stand ; perennials by division. 



