THE JOURNAL OF PHARMACOLOGY. 1 43 



the luxuriance of its growth, clearly show its adaptability to our soil 



and climate. 

 Eva fruteseens L. Marsh Elder. 



Very abundant in salt marshes. 

 ♦Ambrosia artemisiaelolia L. Common Ragweed. 



Perhaps our most common and troublesome weed. 

 ♦Ambrosia trifida L. Great Ragweed. 



Very common and abundant, especially along the coast streams and 



ditches. 

 *Xanthium strumarium L. Clot-bur. 

 Xanthium spinosum L. Spiny Clot-bur. 



Both the Clot-burs are common enough as coarse weeds, especially the 



former, which is abundant in all waste grounds and along roadsides. 

 *Helenium autumnale L. Sneeze Weed. 



Common along streams throughout the State, especially near the coast. 



An alkaloid has recently been isolated from a very similar Mexican 



species. 

 * Achillea Millefolium L. Milfoil. 



A very common weed throughout the State. 

 *Anthemis Cotula L. May Weed. 



Very common indeed as a weed along roadside and in waste places. 

 *TANACETTJM VULARE L. TANSY. 



Flourishes perfectly beside roads and in waste places, where it can 



readily be collected of excellent quality, its leaf-development being 



abundant. 

 Artemisia vulgaris L. Mugwort. 



At various points where this has been introduced it flourishes perfectly. 

 Tussilago Farfara L. Colts Foot. 



Occurs rarely. 

 *Erechtites hieraoifolia (L.) Raf. Fireweed. 



Exceedingly abundant and common in recent clearings throughout the 



State. 

 *Senecio aureus L. | 



*Senecio Balsamitae Muhl. V Golden Ragwort. 

 *Senecio obovatus Muhl. J 



These species of Senecio, long included in the one species S. aureus, 



occur commonly throughout the State. 

 ♦ARCTIUM LAPPA L. " BURDOCK. 



One of our commonest weeds. 

 ♦CICHOEIUM INTYBUS L. CHICORY. 



Common throughout the State, and sufficiently abundant for cultiva- 

 tion in many localities. 



