CONSPECTUS. 311 



47. -ZZe^emwm, L. False Sunflower. Species: 



JItlenium auturnnale, L. Sneeze-weed. 



48. Leptopoda^ Xutt. Species: 



Leptopoda hrachypoda^ Torr. & Gr. 



49. Bald'Loinia^ Xutt. Species: 



Baldioinia unijiora^ Nutt. 



50. Marshallia^ Schreb. Species : 



Marshallia latifolia, Pursh. 



51. Galinsorja^ Ruiz & Pav. Species: 



Galinsoga parviflora, Cav. 



52. Maruta, Cass. May-weed. Species: 



Maruia Cotula^ D. C. 



53. A7ithemis, L. Chamomile. Species: 



Anthemis arvensis, L. Corn Chamomile. 



54. Achillea, L. Yarrow. Species 2. 



55. Leucanthetnum, Tourn. Ox-eye-Daisy. Species: 



Leucanthemum vulgare, Lam. 



56. Matricaria^ Tourn. Wild Chamomile. Feverfew. 



Species 2. 



57. Tanaeetum, L. Tansy. Species 2. 



58. Artemisia^ L. Wormwood. Species 7. 



59. Gnaphaliwn, L. Cudweed. Species 5. 



60. Antennaria, Goertn. Everlasting. Species 2. 



61. J^27a/7o, Tourn. Cotton-Rose. Species: 



Fdago Germanica, L. 



62. Erechthites, Raf. Fireweed. Species: 



Erechtldtes hieracifolia, Raf. 



63. Cacalia, L. Indian Plantain. Species 4, 



64. Seriecio, L. Groundsel. Species 4. 



65. Arnica, L. Species 2. 



66. Centaurea, L. Star-Thistle. Species 3. 



67. C?^^CM5, Vaill. Blessed Thistle. Species: 



Cnicus benedictus, L. 



68. Cirsium, Tourn. Plumed Thistle. Species 10. 



69. Carduus, Tourn. Plumeless Thistle. Species : 



Carduus nutans, L. Musk Thistle. 



