APPENDIX G. BOTANY. 291 



EXPLANATION OF PLATES. 



Plate I. Anemone Caroliniana. 



Fig. 1, a stamen, magnified ; fig. 2, a head of pistils ; fig. 3, a head of ripe 

 achenia, both magnified ; fig. 4, a single achenium, more enlarged. 



Plate II. Dythyr-ea Wislizeni. 



Fig. 1, a flower, magnified ; fig. 2, the pistil, more enlarged ; fig. 3, a ripe 

 pod, with one cell opened, to show the seed — also magnified ; fig. 4, the 

 embryo, more magnified. 



Plate III. Geranium Fremontii.* 



Plate IV. Hoffmanseggia Jamesii. 



Fig. 1, a flower ; fig. 2, a pod ; fig. 3, seed — all moderately magnified. 



Plate V. Sanguisorba annua. 



Fig. 1, a flower; fig. 2, the fruit — both magnified. 



Plate VI. Ertngium diffusum. 



Fig. 1, a separate leaf; fig. 2, a flower ; fig. 3, a petal ; fig. 4, the ovary, 

 with the styles and three of the sepals ; fig. 5, front view of a stamen and 

 sepal ; fig. 6, side view of the same — all but fig. 1 more or less magnified. 



Plate VII. EurytjEnia Texana. 



Fig. 1, a mericarp, magnified ; fig. 2, transverse section of the same, more 

 magnified. 



Plate VIII. Liatris acidota. 



Fig. 1, head of flowers, moderately magnified ; fig. 2, a single flower, more 

 enlarged ; fig. 3, a single bristle of the pappus, still more enlarged. 



Plate IX. Aphanostephus ramosissimus. 



Fig. 1, a ray-flower ; fig. 2, a disk-flower ; fig. 3, style of the same : fig. 4, 

 achenium, with its coroniform pappus — all magnified. 



* This species was not found by Captain Marcy, but it grows in the region 

 that he explored. The plate was prepared for another government report, 

 which was never published. 



