JVPENDIX II. 



bnt if it is much wider near the base the leaf will become 

 ovate-lanceolate. 



Lateral, situated to the right and left of the median plane, 



see anterior. 



Latex, milky juice. 



Leaf, leaves in the broad morphological sense are lateral 

 exogenous oatg> owths of an axis originating below the grow- 

 ing apex in acropetal succession from the undifferentiated 

 tissue of the growing point, and differing in form from the 

 axis which produces them. 



In its typical form a leaf consists of a flat expanded green 

 blade, or in a compound leaf several blades (leaflets), a stalk 

 or petiole, and t^o lateral appendages at or near the base of 

 the petiole {stipules). Any of these parts may be absent or 

 the leaf variously metamorphosed into foliar tendrils, bracts- 

 scales, petals, etc., etc. 



The growth and life of a leaf is usually strictly limited, 

 it never bears flowers, bat it often bears sporangia (as in 

 ferns, carpels, stamens). It usually bears a bud or shoot in 

 its axil except in the case of many metamorphosed leaves. In 

 descriptions of shape, etc., the word leaf merely denotes the 

 blade of the ordinary foliage leaves. 



Leaflet one of the blades of a compound leaf (see above). 

 A leaflet may usually be distinguished from a simple leaf 

 from its position (one very frequently terminating the foliar 

 axis) and from its beariug no bad in its axil. 



Leguminous, resembling the peas and beans in the nature 

 of the fruit. 



Lr'licol, cortical pores. Usually lens-shaped or elongate 

 sro&ii cVfs or excrescences on the bark, they are Oiled 1 ', ith 

 loosf t v.ne, the intercellular spaces of which serve as a 

 Passat c ice oxygen into the inner tissues. 



Lepiaete, covered with small flat scales. 



I uk. a mernbranocs outgr wth from the surface of an 

 616 



