18 MEMBERS OF PLANTS. 



Turpin says the buds of grasses and plants of the 

 same class, are always distinguished by an outer single 

 scale between the stem and the bud; while plants 

 of another class have two scales on opposite sides, 

 either distinct or united. 



Grass Buds. a, a, covered by the scales; b, the scales re- 

 moved. 



A leaf-bud is always more slender and pointed than 

 a flower-bud,, and when it expands it lengthens up- 

 wards. 



When the buds contain flowers again, they are more 

 or less bulged out and blunt at the point, and hence 

 gardeners discover the prospect of blooming long be- 

 fore summer. They do not, upon expanding, lengthen 

 upwards like a leaf-bud. As in the case of leaf-buds, 

 the embryo flower is disposed in various forms 1 within 

 its envelope, both as to the petals of the blossom, and 

 as to the cup or calyx, though these two are often 

 arranged differently in the same flower. It may be 



(1) In Latin, J&stivatio. 



