Rusts from Glacier National Park, Montana

Abstract

During the summer of I9I9, the writer spent ten weeks in Glacier National Park, under the direction of the National Park Service, for the purpose of securing data concerning the flora of the region. Attention was devoted almost wholly to the flowering plants and vascular cryptogams, but a few of the lower cryptogams were secured incidentally, and a small amount of time was spent in searching specially for rusts. Sixty-one species of these interesting plants were secured, and since they come from an area in which very little botanical collecting has been done, it may be worth while to publish a list of them. The list is particularly deficient in grass rusts, for grasses were not collected, and consequently the rusts that may have existed upon them were likewise neglected. The writer is under obligations to Dr. J. C. Arthur, who has kindly determined the collections. The specimens are in the U. S. National Herbarium, and duplicates of most of them are in Doctor Arthur's herbarium.