260 THE NURSERY LIST. 



The " En.EjIish " walnut {/. rcgia) is mostly grown direct 

 from seed in this country, and the different varieties usu- 

 ally come true. In California, the native walnut (/. Cah- 

 foniica) is often used as a stock for this species, and flute- 

 budding on branches a half-inch or more in diameter is 

 often practised. Twig- or prong-budding (Fig. 96) is 

 sometimes employed. 



Jujube (Zi-yphus Jiijubc). Rhamnacea:. 

 Seeds and cuttings. 



Juncus (Rush, Bulrush). Jiiiicacea:. 



Seeds. The perennials may be increased by division. 

 Scirpus TahenitDuonlaniis varicgatus of florists is a form 

 of Juncus cffusus, and is increased by division ot the 

 stools. 



Juneberry [Ainclanchicr oblongifolia ). Rosacdr. 



Increased by using the sprouts which form freely about 

 the old plants ; also by seeds. The cultivated dwarf [une- 

 berry is nuiltiplied by suckers. See Amelanchier. 



Juniperus 1 juniper. Red Cedar, Savin). Coiiifcra:. 



Increased readily by seeds, which, however, often lie 

 dormant until the second year. Red cedar seed is one of 

 the species which lie dormant a year. They germinate 

 more readily if the pulp is removed by maceration or by 

 soaking with ashes for a few days. Green cuttings, in 

 sand under .glass, root easily ; or mature cuttings ma\ be 

 taken in fall and placed in a coldframe, in which they 

 will need little protection during winter. Some varieties 

 require a long time to root. Most of the named varieties 

 may be grafted on imported Irish stocks, which are much 

 used in some parts of the country. They may be veneer- 

 gralted and handled in a cool house. 



Justicia, including Jacobinia and Sericographis. Acantliacecv. 



Seeds occasionally. The species strike readily from 

 short green cuttings on a cutting-bench or under a frame. 



Kadsura, Sarcocarpon. Slagnoliaccic. 



Seeds. Cuttin.gs, made of nearly ripened shoots, which 

 should be placed in sand under glass. 



Kaki. See Persimmon. 



