PLANTS OF MONROE COUNTY. 63 



Epilobium hirsutum L. was first found on the tracks of the New 

 York Central railroad near Bergen in 1913. In 1914 it was found 

 in a swamp two or three miles north of Scottsville; in 1915 in the 

 southern part of the village of Scottsville; in L916 in Rochester, 

 Mendon and various other places, showing how rapidly new plants 

 are disseminated. 



A number of plants which were noted as rare or scarce in our 

 previous lists, are now reported from various stations. Notably 

 among these is Serapias Helleborine L. [Epipactis Helleborine 

 Gray.] In our list of 1896 one station was given for it, the third 

 reported in the State. In the Supplementary List, published in 1910, 

 five new stations were reported, but it was still considered scarce. 

 In the present list four more stations are given, and. in fact, it is 

 being found in so many places that we are beginning to consider 

 it almost common. 



Sisymbrium altissimum L., first given in our list of 1910, has 

 become so plentiful as to be considered pestiferous. 



New Species. 



In the Seventh Edition of Gray's Botany many genera have- 

 been entirely revised, resulting in the addition of numerous species. 

 This has afforded an opportunity for the critical study of several of 

 our common genera, and lias shown that in our territory a large 

 percentage of the new species are present. This is notably the case 

 in the genus Viola, to which 11 new species have been added, and 

 to the genus Antennaria, which now includes 8 species, instead of 

 the single one of our former list. ( )ther genera, to a less degree, 

 have also been studied with like results, and it is believed that con- 

 tinued investigation will show the presence of many species not yet 

 included in our lists. 



The studies on Crataegus, Carya and Mains have been con- 

 tinued by Messrs. Dunbar, Slavin, Brown, Baxter and Dewing, and 

 many species from this locality have been described by Dr. Sargent. 

 References to the original publications are given with the species. 

 Twenty-three new species of Crataegus and nine new Carya are 

 given in the present list. 



