CHAP, iii.l POME^. 71 



in the other genera inchided in this tribe, but 

 the petals {b) are rounder and rather more in- 

 dented. The seeds vary from one to five, each 

 being enclosed in a bony covering, or stone, the 

 whole being surrounded by the fleshy part of 

 the calyx, which forms the eatable part of the 

 Haw. In some of the species the haws are so 

 large as to appear like little apples ; but they 

 may be always easily distinguished by the ripe 

 ovary, or case which incloses the seed, being 

 bony ; whereas in all the varieties of Pyrus, 

 the outer part of the ovary is cartilaginous, like 

 the core of the apple. The seeds of the Hawthorn 

 are a long time before they come up, from the 

 hardness of this bony covering, which does not 

 open naturally when ripe. The species com- 

 posing the genus Raphiolepis, the Indian Haw- 

 thorn, have been separated from Cratsegus ; 

 chiefly on account of the covering which en- 

 closes the seeds being of a paper -like texture, 

 instead of bony, and each cell containing two 

 seeds. The hmb of the calyx also falls off" before 

 the fruit is ripe, instead of remaining on to form 

 what is called an eye, as it does in the common 

 Hawthorn. The leaves of the plants belonging 

 to this genus vary in the different species ; but 

 those of the common Hawthorn are wedge- 

 shaped, and cut deeply into three or five lobes. 

 The different species which compose the genus 



