24 



ORGANOGKAPHY AND GLOSSOLOGY. 



apillary (f. capillacea), when slender a,nd flexible like hairs (Water Crowfoot, 

 fig. 71) ; filiform (f. filiformia), when thin and slender like threads (Asparagus, 

 fig-. 81). The false leaves of Asparagus here alluded to, and which have been 

 described as leaves by most ' botanists, ought to be considered as* branches 

 springing from the axils of small scarious scales, which are the true leuves. 



H'.'. Oleander. Acute leaves. 



*">. Ainnrantli. 

 KniarginaU* loaf. 



Leaves are acute (f. acutu) when they terminate in a sharp angle (Oleander, 

 fig. 82) ; acuminate (f. acumimita), when the tip narrows rapidly and lengthens 

 into a point (Pelidonj, fig. 8:>) ; Muse (f. oblus<i), when the tip is rounded (Mistleto, 



As 



8f>. time. Cordate leaf. 



87. Ground ivy. 

 Itenifnrin leaf. 



W. Bindweed. 

 nt.' leaf. 



80. Sheep's sorrel 

 Hastate leaf. 



fig. 84); emarginate (f. emarginatd), when it terminates in a shallow sinus 

 (Amaranth, fig. 85). 



Leaves are cordate (/. cordata), when the base forms two rounded lobes and 

 the tip is pointed, somewhat like an ace of hearts (Lime, fig. 86) ; reniform (f. 

 reniformia), when the base is cordate but the tip rounded, like a kidney (Ground />,/, 

 fig- 8 7) ; sagittate (f. sagittata), when the base is lengthened into two sharp 

 lobes, which are oblique or parallel to the petiole, like an arrow (Bindweed, fig. 88) ; 



