462 EXPLANATION OF PLATES. 



PLATE 44. A. Hedyotis ciliolata (page 316). Fig. 1. flower, with the style long and 

 the stamens exserted ; fig. 2. the same laid open : fig. 3. flower, with the 

 style short and the stamens somewhat exserted. 



44. B. Hedyotis longifolia. Fig. 1. flower, with the style long and the stamens 



short ; fig. 2. the same laid open : fig. 3. flower, with the style short and 

 the stamens somewhat exserted : all magnified. 



45. Valeriana sylvatica (page 318). Fig. 1. flower : fig. 2. fruit crowned with 



its pappus : fig. 3. one of the plumose awns of the pappus : all magnified. 



46. Fedia Fagopyrum (page 319). Fig. 1. corolla, side view : fig. 2. flower : 



fig. 3. stamen : fig. 4. style : fig. 5. fruit ; fig. 8. the same cut across : 

 fig. 6. seed : fig. 7. embryo. 



47. LiATRis spicata (page 325). Fig. 1. flower : figs. 2., 3. & 4. scales of the 



involucre. 



48. EuPATORiuM LEucoLEPis (page 327). 



49. Nardosmia palmata (page 331) Fig. 1. an exterior scale of the involucre ; 



fig. 2. an interior scale : fig. 3. ray-flower of the fertile plant : fig. 4. an- 

 other form of the corolla, with the summit 2-lobed : fig. 5. style and its 

 lobes : fig. 6. central flower : fig. 7. stamens, style and its lobes : fig. 8. 

 a single bristle of the pappus : fig. 9. ray-flower of the sterile plant : 



fig. 10. portion of the style and its lobes : fig. 11. another ray-flower : 



fig. 12. disk-flower. 



50. Aster Radula (page 336). Fig. 1. ray-flower -.fig. 2. disk-flower : fig. 3. 



bristle of the pappus : fig. 4. stamens : fig. 5. style with its lobes and 

 appendages. 



51. Aster spectabilis (page 336). Fig. 1. scale of the involucre : fig. 2. ray- 



flower : fig. 3. disk-flower : fig. 4. style and its appendages. 



52. Aster ptarmicoides (page 349). Fig. 1. ray-flower : fig. 2. disk-flower : 



fig. 3. style, with its lobes and appendages : fig. 4. one of the bristles of 

 the pappus : all magnified. 



53. SoLiDAGO stricta (page 358). Fig. 1. involucre (the flowers removed) : fig. 



2. ray-flower : fig. 3. corolla of the disk : fig. 4. achenium and pappus : 

 fig. 5. bristle of the pappus : all magnified. 



54. SoLiDAGO Ohioensis (page 360). Fig. 1. involucre : fig. 2. ray-flower : 



fig. 3. stamens : fig. 4. style, with its lobes and appendages : fig. 5. 

 achenium, with the pappus : all magnified. 



55. SoLiDAGO NEGLECTA (page 361). 



56. Chrysopsis falcata (page 367). Fig. 1. involucre : fig. 2. ray-flower : 



fig. 3. corolla of the disk : fig. 4. fruit and pappus : fig. 5. bristle of the 

 pappus : all magnified. 



57. Coreopsis rosea (page 386). Fig. 1. involucre, nat. size : fig. 2. ray-flower : 



fig. 3. disk-flower : fig. 4. scale of the chaff : fig. 5. stamens of the ray- 

 flowers (only four were found) : fig. 6. style with its branches and ap- 

 pendages : fig. 7. achenium : all magnified. 



