The New York Botanical Garden 



Vol. XXII April, 192 1 No 



THE LEAFY SPURGE BECOMING A PEST 

 About one hundred years ago, possibly even earlier 

 Leafy Spurge, native of Europe, obtained a foothold in 1 

 County, Massachusetts; the actual date of its introducti 



States, but in the first edition of Gray's Manual of Botany, 

 published in 1848, the learned author remarked that it was 

 likely to become a troublesome weed. John Robinson in his 

 "Flora of Essex County, Massashusetts" (1880) records it as 



R. R.;" this is probably Oakes' locality. In his "Cayuga 

 Flora," published in 1886, Professor W. R. Dudley records the 

 plant as found at Groton, New York, in 1875, remarking on 

 its rarity. In the Catalogue of Plants of Michigan by C. T. 



edition of Illustrated Flora (1897) I recorded its distribution as 

 Massachusetts to New York and Michigan; by the time the 

 second edition was published (1913) it had extended to Maine, 



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