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DESCRIPTION OF THE PLATES 



PLATE I. CLEMATIS LASIANTHA.— Page 29, 



A PORTION OF THE PLANT OF THE NATURAL SIZE. 



Fig. L A perfect flower. Fig. 2. A head of carpels on its peduncle; of the natural size 



PLATE IL DELFHIXIUM.— Page 30, 



UPPER PORTION OF THE PLAXT OF THE NATURAL SIZE. 



Fig. 1. A sepal J enlarged. Fig. 2- One of the upper petalsj equally enlarged. Fig. 3. One 

 of the lower petals; also enlarged. Fig. 4. A stamen; magnified. Fig, 5. The three pistils; 

 also magnified. 



PLATE IIL DENDROMEEOX EIGIDUM.— Page 32. 



A. A FLO"VVERING PORTION OF THE PLANT, B, A PORTION IN FRUIT.' 



Fig. 1. A flow^er bud; magnified. Fig, 2. A stamen; more magnified. Fig. 3. An ovule; 

 still more magnified. Fig. 4. A seed; equally magnified. Fig, 5. The same; longitudinally 

 divided. Fig. 6. The embryo; highly magnified. 



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PLATE IV. ISOMERIS ARBOREA.— Page 35. 



UPPER PORTION OF THE PLANT OF THE NATURAL SIZE. 



Fig- L Plan of the flower. Fig. 2. A flower bud. Fig. 3. An expanded flower. Fig. 4. 

 A petal. Fig. 5, A stamen. Fig. 6. Cross section of the anther. Fig. 7. A flower from 

 which the petals have been removed, showing the torus and its appendages. Fig. 8. Trans- 

 verse section of the ovary. Fig. 9. A seed, seen in front. Fig. 10. The same; side view. 

 Fig. 11. Longitudinal section of the same. Fig. 12. The embryo. All the figures more or 

 less magnified. 



PLATE V. FRANKENIA GRANDIFOLIA.— Page 35. 



A BRANCH OF THE NATURAL SIZE, 



•tig. 1. A flower. Fig. 2. Transverse section of the calyx. Fig. 3. A flower, with the calyx 

 and part of the petals removed. Fig. 4. A petal, showing the inner side. Fig. 5. A stamen, 

 showing the posterior side. Fig. 6. The pistil. Fig. 7. The ovary, divided longitudinally. 

 Fig. 8. Transverse section of the same. All the figures more or less enlarged. 



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