448 DIFFERENT FOLIATIONS. 



2. Anomalous, or irregular buds, as in Abies,... PiNUs,...and 

 Taxus. 



In many plants the buds are wanting, as has been shown in 

 Chap. IX. 



CHAP. XVI. 



OF FOLIATION. 



BY Foliation is to be understood the complicate, or folded 

 state the leaves are in, whilst they remain concealed within the 

 buds of the plant*. Leaves, in respect to the mariner of their 

 complication, are either, 



1. Involute rolled in; .when their lateral margins are rolled 

 spirally inwards on both sides, as in Lonicera,...Diervilla,... 

 Euonymus,... Rhamnus Cath articus, . . .Pyrus, . . . Malus,...Po- 

 pulus,... Plumb ago,... Viola,... Commelin a Annua,... Plantago, 

 ...Alisma,... Potamogiton Natans,...Nymphcea,...Saururus,... 

 Aster Annuus,...Humulus,...Urtica,... Hepatica,... Sambucus 

 EBULus,...and Staphylea. 



2. Revolute, rolled back; when their lateral margins are 

 rolled spirally backward on both sides, as in Rosmarinus,... Teu- 

 grium M arum,... Dracocephalon,... Digitalis,... Nerium,... An- 

 dromeda,... Ledum,... Epilobium Angustum^Rumex^.-Persica- 

 ria,... Polygonum,... P ariet aria,... Primula, ...Carduus,...Cn i- 

 ci t s,...Tussilago,..„Senecio,...Othonna,...PotentillaFrutico- 

 sA,...PTELEA,...and some species of Saltx. 



* Linnaeus claims the invention of the distinctions given in this Chapter, pre- 

 miing botanists not having (as he says) attended to the foliation in. hads. Author. 



