I] EXAMPLES OF PHYLLOTAXY 13 



Meanwhile we may say that the principal varieties of 

 leaf-insertion, with regard to the shoot, are as follows. 



The leaves are opposite or decussate in 



Clematis Horse-chestnut Field Maple 



Norway Maple Sycamore Mistletoe 



Dogwood Elder Viburnum Lantana 



Aucuba Viburnum Opulus Honeysuckles 



Symphoricarpos Thuja Gupressus 



Lilac Ash Privet 



Loiseleuria Ling Box. 



The leaves are alternate and spirally disposed in 



and in most Willows and Conifers. 



The leaves are alternate and distichous in 

 Lime Vine Virginian Creeper 



Planes Ivy Cranberry 



Elms Hornbeam Chestnut 



Beech Hazel Cherry Laurel. 



The leaves are in whorls of three or four in 

 Erica tetralix Juniper Erica ciliaris 



Erica cinerea Empetrum Erica vagans 



Erica carnea. 



