the Scknce of Botany. ^5 



A perfoliate leaf (perfoliatu7ii) is one whofe 

 difk furrounds the ftalk, the branch, or the 

 footftalk, without any of the borders adhering 

 to it, like the Hares Ear^ commonly called 

 Ferfoliatum^ as at f. 



A coherent leaf (folia connata) is where 

 the bafe of two oppcfite leaves unite, and ap- 

 pear to be but one leaf, as the Eafiern Myofotis^ 

 fee a ; when the^ bafe of the leaf is like a cy- 

 linder, and furrounds the ftalk or branch like 

 a {heath as at h, it is termed {yaghtans). 



IV. The fituation of the leaves (Jitus) de- 

 pends upon the polition of each with regard to 

 the others, fee fig. 21. 



A jointed leaf (folia articulatd) is one whofe 

 fummits are joined to each other, fee fig. 26. 



Starry leaves (folia Jlellata) are fuch as 

 have fix or more fmall leaves {urrounding the 

 ftalk which are pointed like ftars, as at a, as the 

 Goofegrafs^ or Clivers. 



When there are but three of thefe leaves, 

 they are termed ternata, as the Trefoils ; whea 

 four, as at b^ qtiatema -, when five, quina. 



When two leaves are placed oppofite on the 

 ftalk as at c, c, it is termed (folia oppofita) and 

 when they are ranged one above the other as 

 at dy d, (folia alternata) alternate leaves. 



c z When 



