STANDEE Y FLORA OF GLACIER PARK. 251 



upon those flower characters that can be seen easily. The descrip- 

 tive notes under each species are brief, and are intended only to 

 supplement the characters indicated by the keys. It has been the 

 purpose throughout to use only such technical terms as could not be 

 avoided except by the sacrifice of accuracy. A few synonyms 

 have been inserted in parentheses. They are cited chiefly in the 

 case of plants for which two generic names are in use by botanists 

 who follow different systems of nomenclature. The names of 

 Rydberg's Flora of the Eocky Moimtains have been listed when 

 they differ from those employed here. 



EARLIER BOTANICAL EXPLORATION. 



All the species here enumerated were collected by the writer in 

 1919, unless otherwise indicated. The only exception is in the 

 case of the grasses; no attempt was made to ooUect these, and 

 only a few specimens were obtained. Aside from the writer's 

 coUections there are in the United States National Herbarium 

 probably less than a thousand. specimens from Glacier Park. Several 

 previous collections have been made in the region, but only a few of 

 them are represented here. 



The most important earlier collection in the National Herbarium 

 is that obtained by L. M. Umbach, of Northwestern College, Naper- 

 viUe, Illinois, in ^1901. Umbach's coUections were obtained chiefly 

 at the east entrance (Midvale), Momit Henry, Bel ton, and Sperry 

 Glacier. His specimens from the east entrance have been par- 

 ticularly valuable in the preparation of this list, for the season of 

 1901 was undoubtedly a favorable one, and he obtained a con- 

 siderable number of species not found there by the writer. 



In 1897 Mr. R. S. Williams, now of the New York Botanical 

 Garden, was a member of the party which surveyed the west boundary 

 of the Blackfoot Indian Reservation, and was in the region from 

 late June until late September. Mr. Williams was interested chiefly 

 in mosses, but he collected flowering plants also. In earlier years 

 he made large collections of plants about Columbia Falls, and some 

 on the west slope of Glacier Park. Columbia Falls is only about 

 12 miles west of Belton, but many of the plants collected there 

 have not yet been found in Glacier Park. The writer has not 

 deemed it advisable to list them, but it is probable that most of 

 them wiU be found on the west slope, at least along the North Fork 

 of the Flathead. 



In July, 1898, Prof. J. M. Holzinger, of Winona, Minnesota, col- 

 lected about the head of Lake McDonald. He also was interested 

 chiefly in mosses, but he made a small collection of flowering plants, 

 which is in the National Herbarium. 



