PLATE 3. 



Aster delectabilis Hall. 



24. An entire plant, showing the habit, the sheathing leaf-bases, and 



the solitary head. 



25. An inflorescence of two heads, showing the arrangement of the 



bracts of the involucre. 



26. A portion of a leaf, showing the margins and venation. 



27. A portion of the upper part of the stem, showing the character of 



the pubescence. 



28. An outer bract of the involucre. 



29. An inner bract of the involucre. 



30. A ray-flower. 



31. The style-branches of a ray-flower. 



32. A disk-flower. 



33. The style-branches of a disk-flower. 



34. Three stamens from a disk-flower. 



35. A single pappus-bristle from a disk-flower. 



Figures 24 and 25 are reduced to one-half. The remaining figures are 

 enlarged. 



All the figures were drawn by H. N. Bagley under the direction of H. M. 

 Hall. 



[302] 



