Dentate Leaf. 



Digitate Leaf. 

 Horsechestnut. 



Disk. 



Drupe. 



An Emarginate 

 Leaflet. 



CORM : A solid bulb, like that of the Gladiolus and Crocus. 

 COROLLA : Inner covering of a flower ; name of the 



petals taken collectively. 

 CORYMB : A flat or convex flower cluster, in which the 



flower-stalks or peduncles are produced alternately 



along the common stalk and rise to the same height, 



so as to form a flat or slightly rounded surface, and the 



expansion of the flowers proceeds regularly from the 



circumference to the center ; as in Phlox Drummondii. 

 COTYLEDONS : Seed lobes ; the first leaves in the embryo. 

 CYME : A flower cluster resembling a corymb in form, 



but differing from it by the expansion of the flowers 



from the center to the circumference. 

 DEFLEXED : Bent downwards. 

 DEHISCENCE : The mode in which an anther or pod 



bursts or splits open. 



DEHISCENT : Opening in a regular manner by dehiscence. 

 DENTATE : Toothed. 

 DIGITATE : A compound leaf is said to be digitate when 



all of its leaflets start out from the apex of the petiole. 

 DISK : The central part of a head of flowers, like the 



Sunflower, in distinction from the flowers at the margin 



called the ray. An enlarged part of the receptacle. 

 DOWNY : Clothed with a coat of soft and short hairs. 

 DRUPE : A stone fruit. 

 EMARGINATE : Notched at the summit. 

 EMBRYO : The rudiment of the plant in the seed. 

 EQUITANT : {Riding straddle) : Leaves are said to be 



equitant when their bases or edges alternately overlap 



each other, as, the equitant leaves of the Iris. 

 EXTRORSE : Turned outwards : the anther is extrorse when 



fixed to the outside of the filament and faces the petals. 

 FASCICLE : A close cluster ; a cyme with the flowers much 



crowded ; as the Sweet William. 

 FEATHER-VEINED : Veins proceeding from a mid-rib at 



an acute angle. 

 FROND : The leafy part of a fern ; a combination of leaf 



and stem, as in many Algae and Liverworts. 

 GAMOPETALOUS : Having the petals united so as to form 



a tube ; monopetalous. 



GENUS : A class more extensive and higher than a species. 

 GERM : A growing point ; a bud ; that which is to develop 



an embryo. 



HABIT : The appearance and mode of growth of a plant. 

 HERBACEOUS : Of the texture of herbs ; not woody. 



Embryo. 



Equitant Leaves. 



Feather- veined 

 Leaf. 



Frond of Fern ; E 

 frond ; F stipe. 



Convolvulus ; gam- 

 opetalous flower. 



I 



C, Internode ; D, 

 Node or Joint. 



G, Involucre. 



Laciniate Leaf. 



41 



Lanceolate Leaf. 



Rose Leaf, show- 

 ing five leaflets. 



