DESCRIPTION OF PLATES. 3G9 



Plate V. TKICHOPTILITIM INCISUM, (pageJOl.) 



(an EXTIUE PLANT OF THE NATURAL SI/.E.) 



Fig. 1. Involucre ami rt'ceptnclo ; moderately enlarged. 



Fig. 2. A llower ; more enlarged. 



Fig. 3. The corolla, removed ; e(iually magnified. 



Fig. 4. The same, laid open, and showing the stamens ; more magnified. 



Fig. 5. A stamen ; equally magnified. 



Fig. G. Part of the style and its division.s, showing tlio stigmatic lines ; still more magnified. 



Fig. 7. Achenium crowned with its pajjpus ; considerably magnified. 



Fig. 8. The five scales of the pappus spread out and magnified. 



Fig. 9. One of the scales of the pappus ; more highly magnified. 



Fig. 10. A portion of the same; highly magnifioil. 



Fig. 11. Longitudinal section of an achenium ; and, 



Fig. 12. Transverse section of the .same ; both moderately enlarged. 



Plate VI. EREMIASTRUM P.ELLIOIDKS, (page 301.) 



(an entire plant of the natural SI/.E.) 



Fig. 1. The involucre and receptacle ; enlarged. 



Fig. 2. A ray-flower ; more enlarged. 



Fig. 3. A disk-flower ; equally magnified. 



Fig. 4. Corolla of the same, laid open, showing the stamens. 



Fig. 5. A stamen ; considerably magnified. 



Fig. 6. The style, with its divisions, showing the stigmatic lines ; more magnified. 



Fig. 7. An achenium, crowned with its pappus ; magnified. 



Fig. 8. A portion of the pappus, from the same. 



Pl.\te VII. ASCLEPIAS SUBULATA, (page :{«2.) 

 (upper part of the plant, of the natural size.) 



Fig. 1. One of the hoods of the crown, side view ; magnified. 



Fig. 2. The same, with one side folded back to show the horn. 



Fig. 3. An anther, front view; considerably enlarged. 



Fig. 4. The same, seen from the inside. 



Fig. 5. A pair of pollen masses; considerably magnified. 



Plate VIII. CHORIZANTHE FIMBRIATA, (page 3R4.) 

 (an entire plant of the natural size.) 



Fig. 1. An involucre and its solitary flower ; magnified. 



Fig. 2. The involucre shown separately; equally magnifiel. 



Fig. 3. The same, laid open. 



Fig. 4. Perianth ; c(iually magnified. 



Fig. 5. The perianth, laid open ; more magnified. 



Fig. 6. One of the segmenta^of the same. 



Fig. 7. Ovary and styles ; equally magnified. 

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