THE PLANT WORLD. 173 



(Canada) thistle, dandelion, and sow thistle. Five others of the English 

 list are included in the second century of American weeds, published 

 in the Xew Jersey Station report for 1892, thus showing that a full 

 half are serious pests with us. It is interesting to note that BelUs 

 perennisl^.^ Matricaria inodora L. ; Lanq^sana conntiunis L., and 

 HyjyocJtoerls radicata L. , are proscribed in England, while with us they 

 all, while occasionally met with, are rare as weeds of any concern to 

 the crop growers. On the other hand we list two ragweeds {Arte- 

 misia) that are giant intruders in the rich prairie fields in particular; 

 two "beggars ticks" {Biden.^); two fleabanes [Ji'rigerofi), while our 

 budrock [Arctium) and Cocklebur [Xanthiimi) are not the least of the 

 composite group of which we hav^e enough and to spare. 



It is surprising that while the Solanaceae gives us Datura Tatula, 

 Solanum rostratrum and S. Carolineuse (L.)Don., as sample species, the 

 English list has no representative of the order. The "Scrophs", 

 nearly equal in number, are distinct lists, the Mulleins and toad-flax 

 evidentl}" not being pests in the British Isles; while they instead have 

 three Veronicas, an Euphrasia and liJiinanthus crista-galli L, , the 

 lattei' unfamiliar as a pest with us. 



We are so familiar with the various pigweeds (^Amaranthris'), four 

 being listed, that it seems strange to not meet any in the English 

 century. Two spurges {Euphorhia) are represented in each list; but 

 the}" are dift'erent species. 



The number of very weedy grasses in England is much less than 

 with us, and the couch grass {Agropyron npensl^.) is the only one in 

 common. 



It should be said that the English list is for a comparatively small 

 locality, while the American one pretends to cover the whole United 

 States. It is likely that where New England only included in the 

 American century it would be still more resemble the one for North 

 England and Yorkshire in particular. 



The Forester for November contains a number of valuable articles 

 on forest problems in Michigan, Wisconsin, ^Minnesota, etc., showing 

 that while much has been accomplished in awakening public interest, 

 nmeh remains to be done in wav of effective legislation. Jt is one 

 thing to know what should t>e tlone and (luile anolhrr to pass and 

 execute the laws for doiiiii- it. 



