PUBESCENCE. B5 



it is said to be polished : the leaves of the Holly and the 

 stalk of the Maiden hair furnish examples. 



When the surface is covered with a resinous or ad- 

 hesive substance, such as occurs on the stem of some 

 species of Catchfly, Silene, and on the flowers of the 

 White Honeysuckle, Azalea viscosa ; it is said to be 

 viscid. 



When covered with soft tubercles like the Ice plant, 

 it is papillose, and verrucose or warty when these tuber- 

 cles are large. 



When covered with a resinous secretion, sometimes 

 denominated bloom, it is said to be glaucous, and the 

 stem of the Raspberry, and the fruit of the Plumb tree 

 furnish examples. 



Some plants are hoary, either from the presence of 

 close silky hairs, or of a scaly powder analagous to 

 bloom, communicating in either case a whitish appear- 

 ance. Wormwood and Hoary Basil, Pycnanthemum 

 incanum are examples. W T here the surface is beset 

 with numerous fine glossy hairs, it is said to be Silky, 

 and Villous when these hairs are white, long and soft, 

 It is termed Tomentose, or downy, when covered with 

 soft hairs so interwoven as to be scarcely discernible, 

 as in Velvet Leaf, Sida Abutilon. When these hairs 

 are of a rust colour, the plant is sometimes termed fer- 

 ruginous. 



It is pilose, or hairy , when beset with long, single hairs, 

 as, in Norway Cinquefoil, Potentilla Norwegia. It is 

 woolly, as in the Mullein, hispid as in Borage, hirsute as 

 in Ground Laurel, Epigea repens, and Scabrous or rough 

 to the touch from inequality of surface, as in the leaves 

 of the Black Mulberry and Elm. 



It is striated, when marked with fine parallel lines 



