120 or THE BUD. 



The situation of buds is necessarily like that of the 

 leaves, alternate, opposite, 8cc. Trees with opposite 

 leaves have three buds, those with alternate ones a sol- 

 itary bud, at the top of each branch. Du Hamel. 



Buds are various in their forms, but very uniform in 

 the same species or even genus. They consist of scales 

 closely enveloping each other, and enfolding the embryo 

 plant or branch. Externally they have often an addi- 

 tional guard, of gum, resin or wooUiness, against wet 

 and cold. The Horse Chesnut, jEsciiius ffippocastanum, 

 now so common with us, though,^ as I have learnt from 

 Mr. Hawkins*, a native of Mount Pindus in Arcadia, 

 is a fine example of large and wellformed buds,/ 25 ; 

 and some of the American Walnuts are still more re- 

 markablca 



It has been already remarked, p. 84, that buds resist 

 cold only till they begin to grow : hence, according to 

 the nature and earliness of their buds, plants differ in 

 their powers of bearing a severe or variable climate. 



Grew is elaborate on the forms of buds, and the ar- 

 rangement of the spots apparent within them when cut 

 transversely, which indicate the number and situation of 

 their vessels. It was the character of this excellent 

 man to observe every thing, without reference to any 

 theory, and his book is a storehouse of facts relating to 

 vegetation. Loefling, a favourite pupil of Linnasus, 

 wrote, under the eye of his great teacher, an essay on 

 this subject, published in the A}na7iitates AcademiaSy v, 



* See a note on this subject, which Mr. R. If*. Knight has 

 honoured with a place in the second edition of his poem on 

 Landscape. 



