Remarks on Catalogue of Ohio Plants. 



53 



Discusses the attacks of parasitic fungi, referred to Empusa, on 

 various species of insects occurring in Ohio. 



The Russian Thistle in Ohio. By Aug. D. Selby. Bull. No. 55 

 Ohio Agric. Exp. Sta., Oct. 1894, pp. 53-58, pi. 3. 



Describes the plant, its mode of dissemination and gives sugges- 

 tions for destroying it. 



Weeds in General. By Aug. D. Selby. Bull. No. 55 Ohio 

 Agric. Exp. Sta., Oct. 1894, pp. 59-65. 



Defines what is meant by a weed and gives text of Ohio weed 



law. 



Black knot — Yellows Law. Bull. No. 55 Ohio Agric. Exp. Sta., 

 Oct., 1895, PP- 66-69. 



Text of law requiring destruction of trees affected by Black knot 

 and Yellows. 



The next section of the paper under notice is the catalogue of 

 plants proper. This is prefaced by four extra pages, inserted January, 

 1895, m which are given changes in nomenclature supposed to be 

 necessary by reason of the publication of the new list of plants of 

 northeastern North America, prepared by the committee of the Botan- 

 ical Club of the American Association for the Advancement of Science. 

 Personally we regret the changes. It seems carrying matters to an 

 extreme. It looks like "splitting hairs," too, when we see so many 

 plants heretofore regarded as varieties being elevated to the rank of 

 species ; and sub-genera raised to genera. Be this as it may, how- 

 ever, we must enter a protest against the proposed sweeping changes 

 in our nomenclature. That changes are desirable and probably nec- 

 essary, no one will deny. But that it is necessary to resurrect 

 obscure, ill defined and long forgotten genera to displace those that 

 have been so long employed in literature, we do not believe. It will 

 probably be denied by many that the changes have been "officially 

 adopted by the American Botanists,"' and we believe the catalogue 

 would have been improved by omitting these four pages of new 

 names. 



One innovation which can not fail to strike every one, is the new 

 arrangement of orders. It has long seemed to us that the old arrange 



