158 THE AMERICAN MIDLAND NATURALIST 
advice at my disposal. The changes from the nomenclature 
hitherto in vogue, the administering of justice botanically, the 
meting out of his due to everybody have, with the kind consent 
of Prof. J. A. Nieuwland, been submitted to and supervised and 
worked out by him, and for the sake of convenience, where the 
“new name differs materially from the one hitherto used, this 
last has been parenthetically affixed. For the expert identification 
of a majority of Cyperaceae | am under obligation to Mr. K. K. 
Mackenzie. Likewise it has become a fixed habit of mine to 
submit a considerable part of my grasses to Prof. A. S. Hitchcock 
and Mrs. Agnes Chase for determination, from which there is no 
appeal, as no one would question their finality. 
No criticism in this preface shall apply to the brother-botanist 
who pays his own botanical expenses out of his salary or his private 
purse. Nothing is too good for him. His wishes are so many 
‘ laws to me, and I will gladly and without material remuneration 
extend to him all the help I can, in order to make his road smooth 
and facilitate his researches. i 
Any previous names of North Dakota plants for which I am 
responsible, being not mentioned in this list, and any of my 
descriptions pertaining to North Dakota plants, being not in 
conformity with those given in these papers, are herewith repealed. 
If some one should conclude that a mind saturated with 
bitterness and ‘‘gall’’ has dictated these lines and exaggerated this 
quite gloomy review of existing conditions botanically, he commits 
himself to a grave error. I have just tried to relate undisfigured 
facts, with a mind overflowing of tenderness and good will towards 
all. 
Subkingdom PTERIDOPHYTA. 
Order I. DORSIFERAE. Rivinus (1690-1699). 
Family 1. OPHIOGLOSSACEAE Presl. Pterid. 6. (1836). 
BOTRYCHIUM Swartz, Schrad. Bot. 2: 8, (1808). 
1. Botrychium virginianum (Linn.) Swartz. Schrad. Bot 
2:111, (1800). 
Turtle Mountains: St. John, Dunsieth; Fort ‘Totten. 
(Bergman). 
Family 2. POLYPODIACEAE R. Brown, Prod. Fl. Nov 
Koll, “Lsras5; (18x). 
WOODSIA R. Br. Trans. Tyinn. Soc, 11: 170, (1812) 
