OFFSET RHIZOME. 343 



word properly includes the propagation of all plants by 

 whatever means, and in this sense it is used in this book. 



Offset. A rosette or cluster of leaves, on a very short axis, 

 borne next the surface of the ground, and in time be- 

 coming detached and making an independent plant. 

 Page 32. 



Piece-root-grafting. Grafting upon pieces of roots. Page 

 109. Figs. 103, 104. See also, Figs. 144-152. 



Pip. A perpendicular rootstock or crown, used for the 

 propagation of a plant. Page 33. 



A seed of one of the ''seed fruits," as apple or pear. 

 Used in distinction to the stone or pit of a "stone fruit." 



Plate-budding. Much like flute-budding (which see), except 

 that the bark loosened from the stock is left attached at 

 its lower end, and this flap is then raised and bound 

 over the bud. Fig. 97. 



Pot-layering. The rooting of an aerial stem by means of 

 encircling it with earth or moss. Figs. 34, 35. Known 

 also as air-layering, Chinese-layering, and circumpo- 

 sition. 



Prong-budding. A method of propagation much like shield- 

 budding, except that the bud bears a short branch or 

 spur. Fig. 96. 



Pseudo-bulb. Generically, a corm, or homogeneous bulb- 

 like enlargement under ground or at the base of the 

 plant. The term is now commonly restricted, however, 

 to the thickened bases of the stems in various orchids ; 

 these usually stand just at or below the surface of the 

 ground. See under Orchids, page 284. 



Regermination. The continuation or resumption of the pro- 

 cess of germination after it has been completely inter- 

 rupted or checked. Page 9. 



Rhizome. A subterranean branch or stem ; rootstock. A 

 rhizome is distinguished from a root by the presence of 

 joints and buds ; and it is usually thicker and more 

 fleshy than the roots. 



