made his judgment especially valuable in such matters.. 

 Swartz wrote Anemia, and that orthography has been 

 adopted by most authors since, but Kaulfuss pointed out 

 the error in the Greek word which led to it and cor- 

 rected the spelling, and in this he has been followed by 

 some others besides Prof. Eaton. The genus was first 

 proposed by Prof. Swartz in 1806 ( Synopsis Filicum), 

 and has become so firmly established that it is folly to 

 attempt to supersede it by Bernhardi's Ornithoptcris. 

 even if it could be shown — which has not yet been done — 

 that the name did antedate Ancimia. But it has not been 

 used since within the limits of the Berlin rule, and has 

 no legitimate standing. The exceedingly weak evidence 

 furnished by the mere reference in Swartz's Index is 

 not sufficient to re-establish Bernhardi's name, as it can- 

 not be shown that it did really appear before that portion 

 of Swartz's work which described Ancimia was printed. 

 Medford, Mass., Jan. 10, 1905. G. E. D. 



EQUISETUM SCIRPOIDES IN ILLINOIS. 



By E. J. Hill. 



In Patterson's " Catalogue of the Plants of Illinois " 

 (Oquawka. 111.. 1876), but one station was given for this 

 Equisetum — Ringwood. McHenry County, on the north- 

 ern border of the State. The authority was Dr. George 

 Yasey, who resided at Ringwood for a while. It is the 

 only published reference to a definite locality in the State 

 that I have seen. In the winter of 1904. Dr. H. C. 

 Cowles. of The University of Chicago, showed me some 

 specimens he had found the summer preceding in a ravine 

 at Lake Forest. Looking for it in the locality indicated, 

 I did not find it, though its nearest ally in our flora, 

 Equisetum vatic gatum, was present in considerable quan- 

 tities. This latter is a common plant in the moist sands 

 of portions of the dune region at the head of Lake Michi- 

 gan, and in a similar small dune area near Waukegam 

 below Lake Forest on the lake shore. 



