Appendix Botany of the Rose. 



345 



Pubescence is applied to a kind of downiness caused by the presence of short fine hairs. 

 When found on the branches, peduncles, or the tube of the calyx, pubescence offers a useful 

 discriminative characterisDic. 



Stipules are little leaf-like appendages growing one on each side of the leaf -stalk at its base, 

 to which they always in some degree adhere ; sometimes they are much developed, sometimes 

 they are deciduous. 



Fig. 60. GLANDS. 



Bracts are small leafy bodies produced in some species, and always situated between the 

 true leaves and the flowers. 



Disc is a term applied to a projecting part of the flower which occurs between the base of 

 the stamens and the ovaries. 



Fruit is a common term for the hip, which is the fleshy tube of the calyx grown on to 

 maturity, and enclosing the pericarps or true fruits. 



Fig. 61. STIPULES. 



The Rose constitutes the genus ROSA of Linnaeus. This name Rosa, by which the plants are 

 known to Botanists, is derived from the Celtic rhodd or rhudd, red, whence comes the Greek Pooov 

 and the Latin Rosa. The plants form a very extensive and well-marked genus, readily recog- 

 nised as a whole, but in many cases by no means easily distinguished from each other. The 

 peculiar characteristics of Roses, from a botanical point of view, are (1) the presence of an 



