TO BOTANT. 153 



GEMINAE, two together, or with a single one on 

 each side in most plants. 



SOLITARY, in Melianthus, on which the stipula is 

 on the inside ; and Ruscus, on which it is on the 

 outside. 



DECIDUOUS, in Padus, Cerasus Amygdalus; and 

 also* in Populus, Tilia, Ulmus, Quercus, Fagus, Car- 

 pinus, Corylus, Betula, Alnus, Ficus and Morus. 



PERSISTING, in the class Diadelphia, and in Ico- 

 sancjria Polygynia. 



ADNATE, growing close to the plant in Rosa, Ru- 

 bus, Potentilla, Com arum and Melianthus. 



SOLUTE, free or loose, in most plants. 



INTRAFOIIACEOUS, on the inside of the leaves, 

 in Ficus and Morus. 



EXTRA FOLIACEOUS, on the outside of the leaves, 

 in Alnus, Betula, Tilia, and the class Diadelphia. 



CHAP. XVIII. 



OF PUBESCEI?CE. 



PUBESCENCE, downiness')", is an armature, by 

 which plants are defended from external injuries. 

 Pubescence is of the following kinds, viz. 



SCABRITIES, roughness; which is composed of 

 particles scarce visible to the naked eye J, that are 

 scattered over the surface of the plant. This is dis- 

 tinguishable into, 



* The genera here instanced are the same with those entf- 

 merated m the 15bh chapter, as having stipulaceous buds that 

 are alternate, which are those referred to by Linnaeus in this 

 place. 



t The term Downiness is not to be taken here in too strict 

 a sense, as the following explanations shew. 



} Guettardus was the first who carefully examined this 

 of Pubescence. 



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