318 MINNESOTA BOTANICAL STUDIES 



Occurrence on 



north moraine Notes 



Salix artica Pall. • — 



Salix vestita Pursh. ^ 



Salix nivalis Hook. — 



Dryas Drummondii Richards. — 



Epilobium lati folium L. A 



Saxifraga aizoides L. — 



Equisetum variegatum Schleich. — Most abundant plant on 



moist sand flats 



Erigeron acris L. var. debilis Gray. A 



Erigeron uniflorus L. A 



Dryas octopetala L. — 



Poa alpina L. D 



Trisetum spicatum L. A Comparatively glabrous 



form with narrow panicle 



Equisetum arvense L. — 



Cystopteris fragilis (L.) Bernh. B 



Salix Barclayi Anders. — 



Salix sitchensis Sanson in Bong. C ? 



Table I: A, 2. Table supplementary to I: A, 1, showing the 

 most abundant plants on the newer portions of the south moraine 

 in approximate order of frequency. 



Occurrence on 



north moraine Notes 



Epilobium latifolium L. A 



Saxifraga aizoides L. — 



Salix artica Pall. — 



Salix nivalis Hook. — 



Poa alpina L. D 



Dryas Drummondii Richards. — 



Erigeron acris L. var. debilis Gray A 



Trisetum spicatum L. A 



Saxifraga oppositi folia L. A 



Crepis nana Richards. — 



Aster Richardsonii Spreng. — 



Silene acaulis L. — 



Table I: B. Alphabetical list of plants widely distributed and 

 abundant but less frequent than those of table I: A, 1. 



Occurrence on 



north moraine Notes 



Anemone muitifida Poir. — 



Antennaria pulvinata Greene. A 



Arctostaphylos uva-ursi (L.) Spreng. — 



Arnica Chamissonis Less. B 



Arnica latifolia Bong. B 



