PLATE VIL 



THE FLOWERING PLANT. 



DIAGEAM I. Showing 



EEOEPTACLE OR THALAMUS TO WHICH THE FLORAL LEAVES ABE ATTACHED. 



f Calyx, hypogynous or inferior (Gr. liupo, under; gune, the female 



T organ). 



INSERTIONS OF I&amp;lt;LOUAL ) _ ., . . 



\ Corolla, hypogynous or interior. 



| Stamens, hypogynous. 



^ Ovary, superior or free, containing an erect ovule. 

 DIAGEAM II. Showing 



f Stigma, for receiving pollen. 

 PISTIL OR GYNCKCIUM . . &amp;lt; Style. 



(. Ovary, containing one ovule. 



IMPREGNATION OF OVULE Pollen-grains attached to stigma and throwing out pollen-tubes, 



which make their way down the style, enter the micropyle ot 

 the ovule, and fertilize the germ-cell in the embryo-sac. 



DIAGEAM III. Showing - 



f Primine or outer coat (L. primus, first), formed after inner coat. 



OVULE -&amp;lt; Secundine or inner coat (L. seeundus, second). 



( Nucleus, with a giant cell the embryo-sac. 

 f Wall of sac. 

 EMBRYO-SAC FERTILIZED &amp;lt; Embryo. 



( Endosperm. 

 FIG. 1. Showing the EIPE PISTIL OF PEA 



PERICARP Eipe wall of ovary, dry and splitting into two valves. 

 SEED Eipe ovule. 

 FIG. 2. Showing SEEDS 



f Testa or seed-skins (L. testa, a shell). 



-| Endosperm, the so-called albumen (Gr. endon, within ; uperma, a seed; 

 (Albuminous Seed) ^ Embry0; with two cotyle dons, or seed-leaves. 



f Testa. 



2. ALMOND 1 -, , , , , . . , 



.. -&amp;lt; Endosperm absorbed into embryo. 



(Exalbummous Seed) ( Embry0) with two cotyle dons . 



3. PEA (Exalbuminous Seed). 



( Testa. 



4 and 5. BEAN I , , , , 



,_ .. . ..&amp;lt; Endosperm absorbed. 



(Exalbuminous Seed) 1 -n , .., , , , , 



V Embryo, with two cotyledons. 



f Cotyledons. 



EMBRYO v Plumule. 



( Eadick. 

 FIG. 3. ANTHER OF TULIP, showing iibro-vascular bundle in centre corresponding to the midrib of the leaf. 



Eight anther-lobe with two pollen-sacs. Left anther-lobe with two pollen-sacs. 

 DIAGEAM IV. FORMATION OF POLLEN-GKAINS BY ENDOGENOUS DIVISION. 

 FIG. 4. YOUNG BEAN PLANT, showing 

 Axls | Tap-root. 



( Stem with terminal bud. 

 I Eootlets. 



APPENDAGES -^ 2 Cotyledons. 

 V Foliage leaves. 



