286 



DAVENPORT ACADEMY OF SCIENCES. 



PLATE II. 



Root of plant illustrated in Plate 1. One-third natural size. 



Fascicle! root. Two-ninths natural size. 



A root. One-third natural size. 



Vernal plant. One-third natural size. 



Outer involucral bract. Two-thirds natural size. 



Inner involucral bract. Two-thirds natural size. 



Flower. Two-thirds natural size. 



Achene and pappus. Two-thirds natural size. 



