264 



DESCRIPTION OF THE PLATES 



PLATE XYII. ASTKAGALUS CROTALARIiE.i— Page 56. 



A. UPPEE PAET OF THE PLANT. B. A RACEME OF PODS: BOTH OF THE NATURAL SIZE. 



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Fig. 1. A separate flower j moderately enlarged. Fig. 2. The keel; more enlarged. Fig. 3 

 The stamens, with the pistil enclosed in the sheath of filament; equally magnified. Fig. 4 

 The pistil detached. Fig, 5. An ovule; pretty highly magnified. 



PLATE XYIII. CH^TOCALYX SCHOTTII.— Page 



A FLOWEEING BRANCH OF THE NATURAL SIZE. 



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Fig. 1. The petals separated; a, the vexillum; hh^ the wings; c, the keel; moderately magni- 

 fied. Fig. 2. Lower poi^tion of a wing; more magnified. Fig. 3. The monadelphous stamens 

 and the exserted style; still more magnified. Fig. 4. Pistil with the cai^ity of the ovary laid 

 open; equally magnified. Fig. 5. Flower from which the corolla has fallen; less magnified. 

 Fig. 6. Immature pod, showing the wing-like termination; moderately enlarged. Figs. 7 and 8. 



Pods of C. Wislizeni, of the na 

 embryo detached and magnified. 



Fig, 9. A seed of the natural size. Fig. 10. The 



PLATE XIX. AC^NA PINNATIFIDA,— Page 63 



A PLANT OF THE NATURAL SIZE. 



Fig. 1. An expanded flower; considerably magnified. Fig. 2. The calyx, shown separately 

 and equally magnified. Fig. 3. Part of a stamen; more magnified. Fig. 4. A flower divided 

 longitudinally, considerably magnified. Fig. 5. The pistil detached and equally magnified. 

 Fig. 6. An ovule. 



PLATE XX. ADENOSTOMA SPARSIFOLIA.— Page 63 



A BRANCH OF THE NATURAL SIZE. 



Fig. 1. A flower with bracts at the base of the cal}^; magnified. Fig. 2. The same with 

 the bracts cut away. Fig. 3. A portion of the flower, more magnified; showing a petal and 

 three stamens. Fig. 4. The pistil; equally magnified. Fig. 5. The ovary of the same laid 

 open, and exposing one of the ovules. Fig. 6. Transverse section of the ovary. Fig. '?• 

 Fructiferous calyx, with the persistent filaments, magnified. Fig. 8. The fruit detached from 

 the same. 



PLATE XXL ROSA GYMNOSPERMA.— Page 



A FLOWERING BRANCH OF THE NATURAL SIZE. 



Fig. L A petal; enlarged. Fig. 2. 



fied. Fig, 3. Longitudina 



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section of a flower, showing the pistils in the ventricose calyx-tube; the petals removed; enlarged. 

 Fig. 4. A detached pistil; more enlarged. Fig. 5. Longitudinal section of the ovary; magnified- 

 Fig. 6. Cross section of the same; equally magnified. 



Incorrectly named Astragalus crotalarioides on the plate. 



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