THE VINE TRIBE. 



23 



The Vine has 

 Leaves deeply lobed, alternate 



upon the stem, with a stalk 



which is a good deal dilated at 



the base. 

 A calyx with scarcely any lobes. 

 A corolla with five petals. 

 Five stamens. 

 A two-celled fruit. 

 Seeds with a very small embryo 



lying at that end of the albu- 

 • men which is next the hilum. 

 An albumen deeply furrowed on 



the inside. 



The Hemlock has 



Leaves deeply lobed, alternate 

 upon the stem, with a stalk 

 which is a good deal dilated 

 at the base. 



A calyx with scarcely any lobes. 



A corolla with five petals. 



Five stamens. 



A two-celled fruit. 



Seeds with a very small embryo 

 lying at that end of the albu- 

 men which is next the hilum. 



An albumen deeply furrowed on 

 the inside. 



In these points, which are of first-rate consequence, 

 affecting the whole nature of the plants, you perceive 

 that the two are the same. But 



The Vine has 

 A superior ovary. 

 Erect seeds. 



Stamens opposite the petals. 

 A pulpy fruit. 



The Hemlock has 

 An inferior ovary. 

 Pendulous seeds. 

 Stamens alternate with the petals. 

 A dry fruit. 



And some of these differences, slight as they are, 

 are calculated to produce a considerable difference in 

 the general aspect of the two plants, independently of 

 the Vine being a woody climbing plant with panicled 

 flowers, and the Hemlock a herbaceous biennial plant 

 with umbelled flowers. 



My proof of the relationship of the two plants does 

 not however stop here, but is strengthened by other 

 means. It is easy to shew a direct transition from 

 the Vine to the Hemlock by a very brief examination 

 of the plants that stand between the one and the other 



