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EXPLANATION OF THE PLATES. 
PLATE THE THIRTEENTH. 
Fruits. 
Fig. 1. Hordeum Zeocriton. Graminece . Cariopsis mag- 
nified, and partly uncoated. 
a. Perisperm. 
h. Posterior cotyledon saucerlike. 
c. Root mamillse, three, enclosed in a eoleorhize. 
d. Radicles two, each in a eoleorhize. 
e . Plumule; the gemmule having a pileolar, primordial 
leaf. 
Fig. 2. Embryo of the same, magnified. 
a. Cotyledon. 
b. Root mamillse 3, in their coleorhizes. 
c. Pileolar primordial leaf. 
Fig. S. Oryza sativa. Graminece. Cariopsis cut length- 
ways and magnified. 
a. Gemmule with its pileole, enclosed in the coleoptile. 
b. Radicle in its eoleorhize. 
Fig. 4. Hieracium giaucum. Compositce. Embryo mag- 
nified. 
Fig. 5. Akenium of the same, magnified ; pappus sessile, 
bristled, appearing simple to the naked eye : the pericarp is 
cut open, and the seed divided longitudinally. 
Fig. 6. Polygonum scandens. Polygonece . Carcerule cut 
lengthways and dissected. Carceruie boney ; seed coated, 
upright, perispermed ; embryo 2-cotyledon, lateral, thread- 
like, bent; radicle opposite the hile, above. 
Fi.o. 7. Chasrophyllum aromaticum. Umbelliferce. Cre- 
mocarpe with the two coques separated, but remaining sus- 
pended to the axis : magnified. 
a. Spermapodium axile, 2-par ted at top. 
b. Styles persisting on the fruit. 
c. Commissures, or the faces applied to each other. 
d. Latuscule, or face opposite to the commissure. 
e. Vallecules between the ribs of the coques. 
j. Spermapodophore. 
g. Stylopodium. 
Fig. 8. A coque of the same cut lengthways and mag- 
nified. 
a. Perisperm, horny. 
b. Integument of the coque. 
c. Embryo small, basilary. 
